/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:54:36,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:54:36,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:54:36,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:54:36,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:54:36,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:54:36,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:54:36,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:54:36,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:54:36,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:54:36,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:54:36,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:54:36,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:54:36,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:54:36,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:54:36,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:54:36,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:54:36,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:54:36,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:54:36,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:54:36,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:54:36,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:54:36,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:54:36,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:54:36,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:54:36,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:54:36,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:54:36,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:54:36,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:54:36,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:54:36,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:54:36,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:54:36,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:54:36,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:54:36,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:54:36,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:54:36,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:54:36,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:54:36,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:54:36,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:54:36,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:54:36,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:54:36,645 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:54:36,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:54:36,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:54:36,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:54:36,647 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:54:36,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:54:36,647 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:54:36,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:54:36,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:54:36,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:54:36,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:54:36,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:54:36,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:54:36,649 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:54:36,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:54:36,649 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:54:36,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:54:36,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:54:36,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:54:36,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:54:36,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:54:36,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:54:36,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:54:36,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:54:36,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:54:36,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:54:36,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:54:36,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:54:36,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:54:36,922 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:54:36,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:54:36,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:54:36,946 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:54:36,946 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:54:36,947 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-11-07 00:54:37,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc79353a9/48bdb054250941e48dde7279a3d1aed3/FLAG5b9e72efe [2019-11-07 00:54:37,644 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:54:37,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-11-07 00:54:37,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc79353a9/48bdb054250941e48dde7279a3d1aed3/FLAG5b9e72efe [2019-11-07 00:54:37,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc79353a9/48bdb054250941e48dde7279a3d1aed3 [2019-11-07 00:54:37,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:54:37,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:54:37,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:37,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:54:37,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:54:37,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:37" (1/1) ... [2019-11-07 00:54:37,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b1ff1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:37, skipping insertion in model container [2019-11-07 00:54:37,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:37" (1/1) ... [2019-11-07 00:54:37,905 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:54:37,985 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:54:38,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:38,707 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:54:38,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:39,042 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:54:39,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:39 WrapperNode [2019-11-07 00:54:39,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:39,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:54:39,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:54:39,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:54:39,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:39" (1/1) ... [2019-11-07 00:54:39,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:39" (1/1) ... [2019-11-07 00:54:39,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:39" (1/1) ... [2019-11-07 00:54:39,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:39" (1/1) ... [2019-11-07 00:54:39,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:39" (1/1) ... [2019-11-07 00:54:39,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:39" (1/1) ... [2019-11-07 00:54:39,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:39" (1/1) ... [2019-11-07 00:54:39,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:54:39,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:54:39,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:54:39,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:54:39,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:54:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:54:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:54:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:54:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 00:54:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 00:54:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:54:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:54:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:54:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:54:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:54:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:54:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:54:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:54:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:54:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:54:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:54:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:54:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:54:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:54:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:54:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:54:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:54:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:54:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:54:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:54:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:54:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:54:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:54:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:54:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:54:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:54:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:54:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:54:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:54:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:54:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:54:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:54:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:54:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:54:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:54:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:54:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:54:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:54:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:54:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:54:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:54:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:54:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:54:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:54:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:54:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:54:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:54:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:54:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:54:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:54:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:54:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:54:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:54:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:54:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:54:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:54:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:54:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:54:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:54:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:54:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:54:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:54:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:54:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:54:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:54:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:54:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:54:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:54:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:54:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:54:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:54:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:54:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:54:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:54:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:54:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:54:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:54:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:54:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:54:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:54:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:54:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:54:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:54:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:54:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:54:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:54:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:54:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:54:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:54:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:54:39,347 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:54:39,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:54:39,347 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:54:39,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:54:39,347 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:54:39,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:54:39,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:54:39,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:54:39,348 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:54:39,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:54:39,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:54:39,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:54:39,348 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:54:39,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:54:39,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:54:39,349 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:54:39,349 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:54:39,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:54:39,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:54:39,349 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:54:39,350 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:54:39,350 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:54:39,350 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:54:39,350 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:54:39,350 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:54:39,350 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:54:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:54:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:54:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:54:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:54:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:54:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:54:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:54:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:54:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:54:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:54:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 00:54:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 00:54:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:54:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:54:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:54:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:54:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:54:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:54:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:54:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:54:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:54:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:54:39,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:54:39,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:54:39,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:54:39,355 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:54:39,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:54:39,355 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:54:39,355 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:54:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:54:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:54:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:54:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:54:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:54:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:54:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:54:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:54:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:54:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:54:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:54:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:54:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:54:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:54:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:54:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:54:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:54:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:54:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:54:39,359 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:54:39,359 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:54:39,359 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:54:39,359 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:54:39,359 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:54:39,359 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:54:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:54:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:54:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:54:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:54:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:54:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:54:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:54:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:54:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:54:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:54:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:54:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:54:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:54:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:54:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:54:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:54:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:54:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:54:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:54:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:54:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:54:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:54:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:54:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:54:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:54:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:54:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:54:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:54:39,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:54:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:54:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:54:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:54:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:54:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:54:39,365 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:54:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:54:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:54:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:54:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:54:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:54:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:54:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:54:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:54:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:54:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:54:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:54:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:54:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:54:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:54:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:54:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:54:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:54:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:54:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:54:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:54:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:54:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:54:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:54:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:54:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:54:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:54:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:54:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:54:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:54:41,423 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:54:41,423 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:54:41,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:41 BoogieIcfgContainer [2019-11-07 00:54:41,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:54:41,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:54:41,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:54:41,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:54:41,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:37" (1/3) ... [2019-11-07 00:54:41,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa8cf15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:41, skipping insertion in model container [2019-11-07 00:54:41,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:39" (2/3) ... [2019-11-07 00:54:41,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa8cf15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:41, skipping insertion in model container [2019-11-07 00:54:41,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:41" (3/3) ... [2019-11-07 00:54:41,435 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product33.cil.c [2019-11-07 00:54:41,446 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:54:41,464 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:54:41,476 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:54:41,525 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:54:41,526 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:54:41,526 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:54:41,526 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:54:41,526 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:54:41,535 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:54:41,535 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:54:41,535 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:54:41,579 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states. [2019-11-07 00:54:41,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-11-07 00:54:41,614 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:41,617 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:41,621 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:41,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:41,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1628617347, now seen corresponding path program 1 times [2019-11-07 00:54:41,638 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:41,638 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679422564] [2019-11-07 00:54:41,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:42,335 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679422564] [2019-11-07 00:54:42,336 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:42,336 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:54:42,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022277885] [2019-11-07 00:54:42,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:54:42,345 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:42,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:54:42,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:54:42,362 INFO L87 Difference]: Start difference. First operand 586 states. Second operand 2 states. [2019-11-07 00:54:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:42,478 INFO L93 Difference]: Finished difference Result 903 states and 1187 transitions. [2019-11-07 00:54:42,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:54:42,480 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 182 [2019-11-07 00:54:42,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:42,520 INFO L225 Difference]: With dead ends: 903 [2019-11-07 00:54:42,521 INFO L226 Difference]: Without dead ends: 563 [2019-11-07 00:54:42,535 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:54:42,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-11-07 00:54:42,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2019-11-07 00:54:42,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2019-11-07 00:54:42,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 743 transitions. [2019-11-07 00:54:42,653 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 743 transitions. Word has length 182 [2019-11-07 00:54:42,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:42,655 INFO L462 AbstractCegarLoop]: Abstraction has 563 states and 743 transitions. [2019-11-07 00:54:42,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:54:42,659 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 743 transitions. [2019-11-07 00:54:42,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-11-07 00:54:42,667 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:42,667 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:42,667 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:42,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:42,668 INFO L82 PathProgramCache]: Analyzing trace with hash -994536202, now seen corresponding path program 1 times [2019-11-07 00:54:42,668 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:42,668 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534684090] [2019-11-07 00:54:42,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:42,966 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:42,967 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534684090] [2019-11-07 00:54:42,967 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:42,967 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:42,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612369711] [2019-11-07 00:54:42,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:42,969 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:42,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:42,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:42,970 INFO L87 Difference]: Start difference. First operand 563 states and 743 transitions. Second operand 3 states. [2019-11-07 00:54:43,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:43,050 INFO L93 Difference]: Finished difference Result 886 states and 1152 transitions. [2019-11-07 00:54:43,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:43,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-11-07 00:54:43,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:43,061 INFO L225 Difference]: With dead ends: 886 [2019-11-07 00:54:43,061 INFO L226 Difference]: Without dead ends: 566 [2019-11-07 00:54:43,063 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:43,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2019-11-07 00:54:43,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 565. [2019-11-07 00:54:43,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2019-11-07 00:54:43,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 745 transitions. [2019-11-07 00:54:43,107 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 745 transitions. Word has length 183 [2019-11-07 00:54:43,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:43,109 INFO L462 AbstractCegarLoop]: Abstraction has 565 states and 745 transitions. [2019-11-07 00:54:43,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:43,109 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 745 transitions. [2019-11-07 00:54:43,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-11-07 00:54:43,115 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:43,115 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:43,117 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:43,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:43,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1125503284, now seen corresponding path program 1 times [2019-11-07 00:54:43,117 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:43,118 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643117192] [2019-11-07 00:54:43,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:43,338 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643117192] [2019-11-07 00:54:43,338 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:43,339 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:43,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606413067] [2019-11-07 00:54:43,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:43,344 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:43,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:43,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:43,345 INFO L87 Difference]: Start difference. First operand 565 states and 745 transitions. Second operand 3 states. [2019-11-07 00:54:43,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:43,407 INFO L93 Difference]: Finished difference Result 1108 states and 1491 transitions. [2019-11-07 00:54:43,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:43,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-11-07 00:54:43,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:43,421 INFO L225 Difference]: With dead ends: 1108 [2019-11-07 00:54:43,421 INFO L226 Difference]: Without dead ends: 608 [2019-11-07 00:54:43,425 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:43,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-11-07 00:54:43,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 607. [2019-11-07 00:54:43,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2019-11-07 00:54:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 817 transitions. [2019-11-07 00:54:43,492 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 817 transitions. Word has length 195 [2019-11-07 00:54:43,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:43,493 INFO L462 AbstractCegarLoop]: Abstraction has 607 states and 817 transitions. [2019-11-07 00:54:43,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:43,493 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 817 transitions. [2019-11-07 00:54:43,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-11-07 00:54:43,504 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:43,505 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:43,505 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:43,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:43,510 INFO L82 PathProgramCache]: Analyzing trace with hash -287022915, now seen corresponding path program 1 times [2019-11-07 00:54:43,511 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:43,511 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335278641] [2019-11-07 00:54:43,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:43,874 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:43,874 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335278641] [2019-11-07 00:54:43,875 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:43,877 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:43,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295444066] [2019-11-07 00:54:43,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:43,879 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:43,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:43,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:43,879 INFO L87 Difference]: Start difference. First operand 607 states and 817 transitions. Second operand 3 states. [2019-11-07 00:54:43,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:43,919 INFO L93 Difference]: Finished difference Result 1231 states and 1702 transitions. [2019-11-07 00:54:43,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:43,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-11-07 00:54:43,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:43,927 INFO L225 Difference]: With dead ends: 1231 [2019-11-07 00:54:43,927 INFO L226 Difference]: Without dead ends: 689 [2019-11-07 00:54:43,930 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:43,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2019-11-07 00:54:43,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 688. [2019-11-07 00:54:43,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2019-11-07 00:54:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 955 transitions. [2019-11-07 00:54:43,964 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 955 transitions. Word has length 196 [2019-11-07 00:54:43,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:43,965 INFO L462 AbstractCegarLoop]: Abstraction has 688 states and 955 transitions. [2019-11-07 00:54:43,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:43,965 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 955 transitions. [2019-11-07 00:54:43,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-11-07 00:54:43,970 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:43,970 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:43,970 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:43,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:43,971 INFO L82 PathProgramCache]: Analyzing trace with hash -2143849423, now seen corresponding path program 1 times [2019-11-07 00:54:43,971 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:43,972 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235255634] [2019-11-07 00:54:43,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:44,595 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:54:44,595 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235255634] [2019-11-07 00:54:44,596 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:44,596 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-07 00:54:44,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94982956] [2019-11-07 00:54:44,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 00:54:44,598 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:44,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 00:54:44,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:54:44,601 INFO L87 Difference]: Start difference. First operand 688 states and 955 transitions. Second operand 19 states. [2019-11-07 00:54:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:49,759 INFO L93 Difference]: Finished difference Result 2330 states and 3219 transitions. [2019-11-07 00:54:49,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-07 00:54:49,760 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 199 [2019-11-07 00:54:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:49,776 INFO L225 Difference]: With dead ends: 2330 [2019-11-07 00:54:49,776 INFO L226 Difference]: Without dead ends: 2023 [2019-11-07 00:54:49,779 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-11-07 00:54:49,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2019-11-07 00:54:49,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1986. [2019-11-07 00:54:49,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1986 states. [2019-11-07 00:54:49,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2762 transitions. [2019-11-07 00:54:49,906 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2762 transitions. Word has length 199 [2019-11-07 00:54:49,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:49,909 INFO L462 AbstractCegarLoop]: Abstraction has 1986 states and 2762 transitions. [2019-11-07 00:54:49,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 00:54:49,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2762 transitions. [2019-11-07 00:54:49,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 00:54:49,917 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:49,917 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:49,918 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:49,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:49,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1573247763, now seen corresponding path program 1 times [2019-11-07 00:54:49,919 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:49,919 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927539319] [2019-11-07 00:54:49,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:50,250 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:54:50,250 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927539319] [2019-11-07 00:54:50,250 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:50,251 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:54:50,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536945353] [2019-11-07 00:54:50,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:54:50,252 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:50,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:54:50,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:54:50,252 INFO L87 Difference]: Start difference. First operand 1986 states and 2762 transitions. Second operand 15 states. [2019-11-07 00:54:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:54,025 INFO L93 Difference]: Finished difference Result 3367 states and 4617 transitions. [2019-11-07 00:54:54,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 00:54:54,026 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 200 [2019-11-07 00:54:54,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:54,038 INFO L225 Difference]: With dead ends: 3367 [2019-11-07 00:54:54,039 INFO L226 Difference]: Without dead ends: 2088 [2019-11-07 00:54:54,043 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 00:54:54,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2019-11-07 00:54:54,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2056. [2019-11-07 00:54:54,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2056 states. [2019-11-07 00:54:54,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2876 transitions. [2019-11-07 00:54:54,144 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2876 transitions. Word has length 200 [2019-11-07 00:54:54,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:54,145 INFO L462 AbstractCegarLoop]: Abstraction has 2056 states and 2876 transitions. [2019-11-07 00:54:54,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:54:54,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2876 transitions. [2019-11-07 00:54:54,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 00:54:54,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:54,153 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:54,153 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:54,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:54,154 INFO L82 PathProgramCache]: Analyzing trace with hash -673245661, now seen corresponding path program 1 times [2019-11-07 00:54:54,154 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:54,154 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411242233] [2019-11-07 00:54:54,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:54,422 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:54:54,422 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411242233] [2019-11-07 00:54:54,422 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:54,423 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-11-07 00:54:54,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507291320] [2019-11-07 00:54:54,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 00:54:54,424 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:54,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 00:54:54,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-11-07 00:54:54,424 INFO L87 Difference]: Start difference. First operand 2056 states and 2876 transitions. Second operand 16 states. [2019-11-07 00:54:54,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:54,883 INFO L93 Difference]: Finished difference Result 3527 states and 4863 transitions. [2019-11-07 00:54:54,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 00:54:54,884 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 200 [2019-11-07 00:54:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:54,903 INFO L225 Difference]: With dead ends: 3527 [2019-11-07 00:54:54,903 INFO L226 Difference]: Without dead ends: 2128 [2019-11-07 00:54:54,911 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-11-07 00:54:54,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2019-11-07 00:54:55,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2097. [2019-11-07 00:54:55,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2097 states. [2019-11-07 00:54:55,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2097 states to 2097 states and 2923 transitions. [2019-11-07 00:54:55,050 INFO L78 Accepts]: Start accepts. Automaton has 2097 states and 2923 transitions. Word has length 200 [2019-11-07 00:54:55,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:55,050 INFO L462 AbstractCegarLoop]: Abstraction has 2097 states and 2923 transitions. [2019-11-07 00:54:55,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 00:54:55,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2097 states and 2923 transitions. [2019-11-07 00:54:55,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 00:54:55,057 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:55,057 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:55,057 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:55,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:55,058 INFO L82 PathProgramCache]: Analyzing trace with hash 307966101, now seen corresponding path program 1 times [2019-11-07 00:54:55,058 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:55,058 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828217093] [2019-11-07 00:54:55,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:55,295 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:55,296 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828217093] [2019-11-07 00:54:55,296 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:55,296 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:54:55,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025961973] [2019-11-07 00:54:55,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:54:55,298 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:55,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:54:55,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:54:55,298 INFO L87 Difference]: Start difference. First operand 2097 states and 2923 transitions. Second operand 5 states. [2019-11-07 00:54:56,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:56,427 INFO L93 Difference]: Finished difference Result 5168 states and 7146 transitions. [2019-11-07 00:54:56,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:54:56,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2019-11-07 00:54:56,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:56,457 INFO L225 Difference]: With dead ends: 5168 [2019-11-07 00:54:56,457 INFO L226 Difference]: Without dead ends: 4480 [2019-11-07 00:54:56,464 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:54:56,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2019-11-07 00:54:56,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 4449. [2019-11-07 00:54:56,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4449 states. [2019-11-07 00:54:56,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4449 states to 4449 states and 6166 transitions. [2019-11-07 00:54:56,708 INFO L78 Accepts]: Start accepts. Automaton has 4449 states and 6166 transitions. Word has length 200 [2019-11-07 00:54:56,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:56,708 INFO L462 AbstractCegarLoop]: Abstraction has 4449 states and 6166 transitions. [2019-11-07 00:54:56,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:54:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 4449 states and 6166 transitions. [2019-11-07 00:54:56,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 00:54:56,720 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:56,720 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:56,720 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:56,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:56,721 INFO L82 PathProgramCache]: Analyzing trace with hash 328303476, now seen corresponding path program 1 times [2019-11-07 00:54:56,721 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:56,721 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214781079] [2019-11-07 00:54:56,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:56,982 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:56,982 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214781079] [2019-11-07 00:54:56,984 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:56,984 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 00:54:56,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776101113] [2019-11-07 00:54:56,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:54:56,986 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:56,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:54:56,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:54:56,987 INFO L87 Difference]: Start difference. First operand 4449 states and 6166 transitions. Second operand 7 states. [2019-11-07 00:54:59,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:59,245 INFO L93 Difference]: Finished difference Result 14458 states and 20304 transitions. [2019-11-07 00:54:59,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:54:59,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2019-11-07 00:54:59,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:59,320 INFO L225 Difference]: With dead ends: 14458 [2019-11-07 00:54:59,320 INFO L226 Difference]: Without dead ends: 11205 [2019-11-07 00:54:59,341 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:54:59,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11205 states. [2019-11-07 00:54:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11205 to 11183. [2019-11-07 00:54:59,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11183 states. [2019-11-07 00:54:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11183 states to 11183 states and 15568 transitions. [2019-11-07 00:54:59,945 INFO L78 Accepts]: Start accepts. Automaton has 11183 states and 15568 transitions. Word has length 200 [2019-11-07 00:54:59,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:59,947 INFO L462 AbstractCegarLoop]: Abstraction has 11183 states and 15568 transitions. [2019-11-07 00:54:59,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:54:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 11183 states and 15568 transitions. [2019-11-07 00:54:59,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-11-07 00:54:59,962 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:59,963 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:59,963 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:59,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:59,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1465027948, now seen corresponding path program 1 times [2019-11-07 00:54:59,964 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:59,964 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159606778] [2019-11-07 00:54:59,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:00,575 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:00,576 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159606778] [2019-11-07 00:55:00,577 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:00,577 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-11-07 00:55:00,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258274282] [2019-11-07 00:55:00,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-07 00:55:00,578 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:00,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-07 00:55:00,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-11-07 00:55:00,579 INFO L87 Difference]: Start difference. First operand 11183 states and 15568 transitions. Second operand 26 states. [2019-11-07 00:55:01,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:01,792 INFO L93 Difference]: Finished difference Result 21470 states and 30022 transitions. [2019-11-07 00:55:01,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-07 00:55:01,792 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 201 [2019-11-07 00:55:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:01,856 INFO L225 Difference]: With dead ends: 21470 [2019-11-07 00:55:01,856 INFO L226 Difference]: Without dead ends: 9480 [2019-11-07 00:55:01,901 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-11-07 00:55:01,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9480 states. [2019-11-07 00:55:02,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9480 to 9257. [2019-11-07 00:55:02,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9257 states. [2019-11-07 00:55:02,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9257 states to 9257 states and 12784 transitions. [2019-11-07 00:55:02,312 INFO L78 Accepts]: Start accepts. Automaton has 9257 states and 12784 transitions. Word has length 201 [2019-11-07 00:55:02,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:02,313 INFO L462 AbstractCegarLoop]: Abstraction has 9257 states and 12784 transitions. [2019-11-07 00:55:02,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-07 00:55:02,313 INFO L276 IsEmpty]: Start isEmpty. Operand 9257 states and 12784 transitions. [2019-11-07 00:55:02,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-11-07 00:55:02,323 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:02,323 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:02,324 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:02,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:02,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1427183847, now seen corresponding path program 1 times [2019-11-07 00:55:02,324 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:02,325 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952536362] [2019-11-07 00:55:02,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:02,522 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:02,523 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952536362] [2019-11-07 00:55:02,523 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:02,523 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 00:55:02,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370233935] [2019-11-07 00:55:02,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 00:55:02,526 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:02,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 00:55:02,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 00:55:02,526 INFO L87 Difference]: Start difference. First operand 9257 states and 12784 transitions. Second operand 10 states. [2019-11-07 00:55:02,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:02,844 INFO L93 Difference]: Finished difference Result 9322 states and 12886 transitions. [2019-11-07 00:55:02,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 00:55:02,844 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2019-11-07 00:55:02,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:02,882 INFO L225 Difference]: With dead ends: 9322 [2019-11-07 00:55:02,882 INFO L226 Difference]: Without dead ends: 9247 [2019-11-07 00:55:02,889 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 00:55:02,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9247 states. [2019-11-07 00:55:03,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9247 to 9239. [2019-11-07 00:55:03,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9239 states. [2019-11-07 00:55:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9239 states to 9239 states and 12742 transitions. [2019-11-07 00:55:03,261 INFO L78 Accepts]: Start accepts. Automaton has 9239 states and 12742 transitions. Word has length 205 [2019-11-07 00:55:03,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:03,262 INFO L462 AbstractCegarLoop]: Abstraction has 9239 states and 12742 transitions. [2019-11-07 00:55:03,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 00:55:03,262 INFO L276 IsEmpty]: Start isEmpty. Operand 9239 states and 12742 transitions. [2019-11-07 00:55:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-11-07 00:55:03,272 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:03,273 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:03,273 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:03,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:03,273 INFO L82 PathProgramCache]: Analyzing trace with hash 404763986, now seen corresponding path program 1 times [2019-11-07 00:55:03,274 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:03,274 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042206370] [2019-11-07 00:55:03,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:03,454 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:03,454 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042206370] [2019-11-07 00:55:03,454 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:03,454 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:55:03,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920674686] [2019-11-07 00:55:03,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:55:03,455 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:03,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:55:03,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:55:03,456 INFO L87 Difference]: Start difference. First operand 9239 states and 12742 transitions. Second operand 5 states. [2019-11-07 00:55:03,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:03,666 INFO L93 Difference]: Finished difference Result 17309 states and 23560 transitions. [2019-11-07 00:55:03,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:55:03,667 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2019-11-07 00:55:03,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:03,705 INFO L225 Difference]: With dead ends: 17309 [2019-11-07 00:55:03,705 INFO L226 Difference]: Without dead ends: 9428 [2019-11-07 00:55:03,728 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:55:03,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9428 states. [2019-11-07 00:55:04,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9428 to 9343. [2019-11-07 00:55:04,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9343 states. [2019-11-07 00:55:04,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9343 states to 9343 states and 12876 transitions. [2019-11-07 00:55:04,693 INFO L78 Accepts]: Start accepts. Automaton has 9343 states and 12876 transitions. Word has length 210 [2019-11-07 00:55:04,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:04,694 INFO L462 AbstractCegarLoop]: Abstraction has 9343 states and 12876 transitions. [2019-11-07 00:55:04,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:55:04,694 INFO L276 IsEmpty]: Start isEmpty. Operand 9343 states and 12876 transitions. [2019-11-07 00:55:04,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-11-07 00:55:04,705 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:04,705 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:04,706 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:04,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:04,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1565961098, now seen corresponding path program 1 times [2019-11-07 00:55:04,706 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:04,707 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456193566] [2019-11-07 00:55:04,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:04,980 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:04,981 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456193566] [2019-11-07 00:55:04,981 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:04,982 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:55:04,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59673489] [2019-11-07 00:55:04,983 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:55:04,983 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:04,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:55:04,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:55:04,985 INFO L87 Difference]: Start difference. First operand 9343 states and 12876 transitions. Second operand 11 states. [2019-11-07 00:55:05,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:05,540 INFO L93 Difference]: Finished difference Result 17350 states and 23529 transitions. [2019-11-07 00:55:05,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 00:55:05,541 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 210 [2019-11-07 00:55:05,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:05,592 INFO L225 Difference]: With dead ends: 17350 [2019-11-07 00:55:05,593 INFO L226 Difference]: Without dead ends: 9353 [2019-11-07 00:55:05,621 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:55:05,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9353 states. [2019-11-07 00:55:06,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9353 to 9305. [2019-11-07 00:55:06,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9305 states. [2019-11-07 00:55:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9305 states to 9305 states and 12794 transitions. [2019-11-07 00:55:06,178 INFO L78 Accepts]: Start accepts. Automaton has 9305 states and 12794 transitions. Word has length 210 [2019-11-07 00:55:06,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:06,179 INFO L462 AbstractCegarLoop]: Abstraction has 9305 states and 12794 transitions. [2019-11-07 00:55:06,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:55:06,179 INFO L276 IsEmpty]: Start isEmpty. Operand 9305 states and 12794 transitions. [2019-11-07 00:55:06,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-11-07 00:55:06,194 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:06,194 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:06,194 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:06,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:06,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1834380725, now seen corresponding path program 1 times [2019-11-07 00:55:06,195 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:06,195 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812884148] [2019-11-07 00:55:06,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:06,357 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:06,358 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812884148] [2019-11-07 00:55:06,358 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:06,358 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:55:06,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963606113] [2019-11-07 00:55:06,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:55:06,359 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:06,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:55:06,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:55:06,360 INFO L87 Difference]: Start difference. First operand 9305 states and 12794 transitions. Second operand 6 states. [2019-11-07 00:55:07,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:07,189 INFO L93 Difference]: Finished difference Result 26154 states and 35638 transitions. [2019-11-07 00:55:07,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:55:07,189 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2019-11-07 00:55:07,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:07,269 INFO L225 Difference]: With dead ends: 26154 [2019-11-07 00:55:07,269 INFO L226 Difference]: Without dead ends: 18611 [2019-11-07 00:55:07,292 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:55:07,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18611 states.