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_spec6_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:37,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:37,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:37,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:37,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:37,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:37,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:37,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:37,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:37,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:37,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:37,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:37,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:37,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:37,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:37,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:37,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:37,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:37,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:37,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:37,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:37,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:37,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:37,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:37,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:37,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:37,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:37,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:37,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:37,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:37,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:37,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:37,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:37,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:37,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:37,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:37,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:37,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:37,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:37,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:37,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:37,272 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:37,290 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:37,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:37,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:37,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:37,292 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:37,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:37,293 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:37,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:37,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:37,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:37,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:37,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:37,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:37,295 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:37,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:37,296 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:37,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:37,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:37,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:37,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:37,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:37,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:37,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:37,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:37,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:37,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:37,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:37,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:37,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:17:37,590 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:37,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:37,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:37,614 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:37,615 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:37,615 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_productSimulator.cil.c [2019-10-13 21:17:37,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d7c8cae/4b7afaf2762f41eb8c018e92eb7d9f7a/FLAG210668c81 [2019-10-13 21:17:38,455 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:38,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_productSimulator.cil.c [2019-10-13 21:17:38,487 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d7c8cae/4b7afaf2762f41eb8c018e92eb7d9f7a/FLAG210668c81 [2019-10-13 21:17:38,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d7c8cae/4b7afaf2762f41eb8c018e92eb7d9f7a [2019-10-13 21:17:38,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:38,591 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:38,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:38,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:38,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:38,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:38" (1/1) ... [2019-10-13 21:17:38,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d15e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:38, skipping insertion in model container [2019-10-13 21:17:38,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:38" (1/1) ... [2019-10-13 21:17:38,611 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:38,704 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:39,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:39,454 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:39,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:39,814 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:39,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:39 WrapperNode [2019-10-13 21:17:39,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:39,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:39,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:39,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:39,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:39" (1/1) ... [2019-10-13 21:17:39,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:39" (1/1) ... [2019-10-13 21:17:39,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:39" (1/1) ... [2019-10-13 21:17:39,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:39" (1/1) ... [2019-10-13 21:17:39,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:39" (1/1) ... [2019-10-13 21:17:39,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:39" (1/1) ... [2019-10-13 21:17:39,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:39" (1/1) ... [2019-10-13 21:17:40,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:40,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:40,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:40,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:40,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:39" (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 [2019-10-13 21:17:40,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:40,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:40,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:40,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:40,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:40,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:40,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:40,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:40,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:40,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:40,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:40,130 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-13 21:17:40,131 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-13 21:17:40,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-13 21:17:40,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-13 21:17:40,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-13 21:17:40,134 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-13 21:17:40,134 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:40,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-13 21:17:40,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-13 21:17:40,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:40,135 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:40,136 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:40,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:40,136 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:40,136 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:40,137 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:40,137 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:40,137 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:40,137 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:40,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:40,138 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:40,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:40,138 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:40,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:40,139 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:40,139 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:40,139 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:40,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:40,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:40,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:40,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:40,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:40,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:40,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:40,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:40,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:40,141 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:40,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:40,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:40,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:40,142 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:40,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-13 21:17:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-13 21:17:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-13 21:17:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-13 21:17:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-13 21:17:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-13 21:17:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:17:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:40,150 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:40,150 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:40,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:40,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:40,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:40,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:40,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:40,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:40,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:40,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:40,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:40,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:40,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:40,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:40,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:40,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:40,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:40,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:40,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:40,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:40,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:40,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:40,155 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-13 21:17:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-13 21:17:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-13 21:17:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-13 21:17:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-13 21:17:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-13 21:17:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-13 21:17:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-13 21:17:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-13 21:17:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-13 21:17:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-13 21:17:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-13 21:17:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-13 21:17:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-13 21:17:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:17:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:40,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-13 21:17:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-13 21:17:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-13 21:17:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-13 21:17:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-13 21:17:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-13 21:17:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-13 21:17:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-13 21:17:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:17:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-13 21:17:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-13 21:17:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-13 21:17:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-13 21:17:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-13 21:17:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-13 21:17:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:17:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-13 21:17:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-13 21:17:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-13 21:17:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-13 21:17:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-13 21:17:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-13 21:17:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-13 21:17:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-13 21:17:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-13 21:17:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-13 21:17:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-13 21:17:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-13 21:17:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-13 21:17:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-13 21:17:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:42,699 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:42,700 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:42,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:42 BoogieIcfgContainer [2019-10-13 21:17:42,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:42,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:42,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:42,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:42,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:38" (1/3) ... [2019-10-13 21:17:42,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be577f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:42, skipping insertion in model container [2019-10-13 21:17:42,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:39" (2/3) ... [2019-10-13 21:17:42,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be577f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:42, skipping insertion in model container [2019-10-13 21:17:42,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:42" (3/3) ... [2019-10-13 21:17:42,711 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_productSimulator.cil.c [2019-10-13 21:17:42,721 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:42,731 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:42,744 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:42,777 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:42,777 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:42,778 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:42,778 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:42,778 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:42,778 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:42,778 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:42,778 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:42,817 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states. [2019-10-13 21:17:42,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 21:17:42,844 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:42,846 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:42,848 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:42,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:42,855 INFO L82 PathProgramCache]: Analyzing trace with hash 924149196, now seen corresponding path program 1 times [2019-10-13 21:17:42,865 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:42,865 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962802346] [2019-10-13 21:17:42,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:42,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:42,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:43,683 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:17:43,683 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962802346] [2019-10-13 21:17:43,684 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:43,685 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:43,685 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961550735] [2019-10-13 21:17:43,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:43,695 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:43,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:43,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:43,710 INFO L87 Difference]: Start difference. First operand 822 states. Second operand 6 states. [2019-10-13 21:17:44,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:44,003 INFO L93 Difference]: Finished difference Result 1562 states and 2158 transitions. [2019-10-13 21:17:44,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:17:44,005 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 201 [2019-10-13 21:17:44,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:44,044 INFO L225 Difference]: With dead ends: 1562 [2019-10-13 21:17:44,044 INFO L226 Difference]: Without dead ends: 793 [2019-10-13 21:17:44,057 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:17:44,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-10-13 21:17:44,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 793. [2019-10-13 21:17:44,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2019-10-13 21:17:44,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1079 transitions. [2019-10-13 21:17:44,215 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1079 transitions. Word has length 201 [2019-10-13 21:17:44,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:44,223 INFO L462 AbstractCegarLoop]: Abstraction has 793 states and 1079 transitions. [2019-10-13 21:17:44,223 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:44,223 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1079 transitions. [2019-10-13 21:17:44,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:17:44,239 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:44,239 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:44,240 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:44,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:44,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1049194950, now seen corresponding path program 1 times [2019-10-13 21:17:44,241 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:44,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85282978] [2019-10-13 21:17:44,242 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:44,242 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:44,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:17:44,465 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85282978] [2019-10-13 21:17:44,465 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:44,466 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:17:44,466 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650282267] [2019-10-13 21:17:44,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:17:44,472 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:44,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:17:44,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:17:44,473 INFO L87 Difference]: Start difference. First operand 793 states and 1079 transitions. Second operand 4 states. [2019-10-13 21:17:45,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:45,325 INFO L93 Difference]: Finished difference Result 1549 states and 2143 transitions. [2019-10-13 21:17:45,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:17:45,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 207 [2019-10-13 21:17:45,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:45,331 INFO L225 Difference]: With dead ends: 1549 [2019-10-13 21:17:45,332 INFO L226 Difference]: Without dead ends: 792 [2019-10-13 21:17:45,335 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:17:45,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2019-10-13 21:17:45,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2019-10-13 21:17:45,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 792 states. [2019-10-13 21:17:45,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1069 transitions. [2019-10-13 21:17:45,369 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1069 transitions. Word has length 207 [2019-10-13 21:17:45,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:45,370 INFO L462 AbstractCegarLoop]: Abstraction has 792 states and 1069 transitions. [2019-10-13 21:17:45,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:17:45,370 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1069 transitions. [2019-10-13 21:17:45,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-13 21:17:45,375 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:45,375 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:45,375 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:45,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:45,376 INFO L82 PathProgramCache]: Analyzing trace with hash -664610348, now seen corresponding path program 1 times [2019-10-13 21:17:45,376 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:45,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252168678] [2019-10-13 21:17:45,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:45,377 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:45,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:17:45,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252168678] [2019-10-13 21:17:45,609 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:45,609 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:45,610 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796585178] [2019-10-13 21:17:45,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:45,611 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:45,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:45,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:45,612 INFO L87 Difference]: Start difference. First operand 792 states and 1069 transitions. Second operand 3 states. [2019-10-13 21:17:45,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:45,857 INFO L93 Difference]: Finished difference Result 1542 states and 2102 transitions. [2019-10-13 21:17:45,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:45,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2019-10-13 21:17:45,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:45,867 INFO L225 Difference]: With dead ends: 1542 [2019-10-13 21:17:45,867 INFO L226 Difference]: Without dead ends: 791 [2019-10-13 21:17:45,871 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:45,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2019-10-13 21:17:45,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 791. [2019-10-13 21:17:45,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2019-10-13 21:17:45,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1065 transitions. [2019-10-13 21:17:45,933 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1065 transitions. Word has length 225 [2019-10-13 21:17:45,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:45,934 INFO L462 AbstractCegarLoop]: Abstraction has 791 states and 1065 transitions. [2019-10-13 21:17:45,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:45,935 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1065 transitions. [2019-10-13 21:17:45,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-13 21:17:45,941 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:45,941 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:45,941 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:45,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:45,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1053060183, now seen corresponding path program 1 times [2019-10-13 21:17:45,942 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:45,942 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731556744] [2019-10-13 21:17:45,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:45,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:45,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:46,310 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:17:46,311 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731556744] [2019-10-13 21:17:46,311 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:46,311 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:17:46,311 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392824647] [2019-10-13 21:17:46,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:17:46,312 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:46,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:17:46,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:17:46,313 INFO L87 Difference]: Start difference. First operand 791 states and 1065 transitions. Second operand 4 states. [2019-10-13 21:17:47,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:47,207 INFO L93 Difference]: Finished difference Result 1513 states and 2048 transitions. [2019-10-13 21:17:47,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:17:47,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 226 [2019-10-13 21:17:47,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:47,213 INFO L225 Difference]: With dead ends: 1513 [2019-10-13 21:17:47,213 INFO L226 Difference]: Without dead ends: 788 [2019-10-13 21:17:47,216 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:17:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-10-13 21:17:47,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2019-10-13 21:17:47,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-10-13 21:17:47,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1048 transitions. [2019-10-13 21:17:47,252 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1048 transitions. Word has length 226 [2019-10-13 21:17:47,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:47,253 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 1048 transitions. [2019-10-13 21:17:47,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:17:47,254 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1048 transitions. [2019-10-13 21:17:47,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-10-13 21:17:47,258 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:47,259 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:47,259 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:47,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:47,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1140703033, now seen corresponding path program 1 times [2019-10-13 21:17:47,260 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:47,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321404619] [2019-10-13 21:17:47,260 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:47,260 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:47,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2019-10-13 21:17:47,535 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321404619] [2019-10-13 21:17:47,535 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:47,535 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:47,536 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468573276] [2019-10-13 21:17:47,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:47,537 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:47,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:47,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:47,538 INFO L87 Difference]: Start difference. First operand 788 states and 1048 transitions. Second operand 3 states. [2019-10-13 21:17:47,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:47,587 INFO L93 Difference]: Finished difference Result 1229 states and 1615 transitions. [2019-10-13 21:17:47,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:47,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2019-10-13 21:17:47,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:47,593 INFO L225 Difference]: With dead ends: 1229 [2019-10-13 21:17:47,594 INFO L226 Difference]: Without dead ends: 791 [2019-10-13 21:17:47,596 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:47,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2019-10-13 21:17:47,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 790. [2019-10-13 21:17:47,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-13 21:17:47,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1050 transitions. [2019-10-13 21:17:47,636 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1050 transitions. Word has length 253 [2019-10-13 21:17:47,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:47,637 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1050 transitions. [2019-10-13 21:17:47,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:47,638 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1050 transitions. [2019-10-13 21:17:47,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2019-10-13 21:17:47,645 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:47,646 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:47,646 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:47,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:47,647 INFO L82 PathProgramCache]: Analyzing trace with hash 548051965, now seen corresponding path program 1 times [2019-10-13 21:17:47,647 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:47,648 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480629633] [2019-10-13 21:17:47,648 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:47,648 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:47,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2019-10-13 21:17:47,962 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480629633] [2019-10-13 21:17:47,962 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:47,962 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:47,963 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416657420] [2019-10-13 21:17:47,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:47,964 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:47,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:47,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:47,964 INFO L87 Difference]: Start difference. First operand 790 states and 1050 transitions. Second operand 3 states. [2019-10-13 21:17:48,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:48,015 INFO L93 Difference]: Finished difference Result 1518 states and 2056 transitions. [2019-10-13 21:17:48,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:48,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2019-10-13 21:17:48,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:48,023 INFO L225 Difference]: With dead ends: 1518 [2019-10-13 21:17:48,023 INFO L226 Difference]: Without dead ends: 845 [2019-10-13 21:17:48,027 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:48,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-10-13 21:17:48,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 844. [2019-10-13 21:17:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2019-10-13 21:17:48,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1138 transitions. [2019-10-13 21:17:48,079 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1138 transitions. Word has length 261 [2019-10-13 21:17:48,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:48,081 INFO L462 AbstractCegarLoop]: Abstraction has 844 states and 1138 transitions. [2019-10-13 21:17:48,081 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:48,081 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1138 transitions. [2019-10-13 21:17:48,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2019-10-13 21:17:48,087 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:48,087 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:48,088 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:48,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:48,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1285741977, now seen corresponding path program 1 times [2019-10-13 21:17:48,088 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:48,089 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088016190] [2019-10-13 21:17:48,089 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:48,089 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:48,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:48,496 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:17:48,497 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088016190] [2019-10-13 21:17:48,497 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:48,497 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:48,497 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547582834] [2019-10-13 21:17:48,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:48,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:48,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:48,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:48,501 INFO L87 Difference]: Start difference. First operand 844 states and 1138 transitions. Second operand 11 states. [2019-10-13 21:17:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:59,352 INFO L93 Difference]: Finished difference Result 4616 states and 6640 transitions. [2019-10-13 21:17:59,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-10-13 21:17:59,354 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 262 [2019-10-13 21:17:59,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:59,382 INFO L225 Difference]: With dead ends: 4616 [2019-10-13 21:17:59,383 INFO L226 Difference]: Without dead ends: 4191 [2019-10-13 21:17:59,387 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1007, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 21:17:59,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4191 states. [2019-10-13 21:17:59,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4191 to 4170. [2019-10-13 21:17:59,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4170 states. [2019-10-13 21:17:59,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4170 states to 4170 states and 5674 transitions. [2019-10-13 21:17:59,607 INFO L78 Accepts]: Start accepts. Automaton has 4170 states and 5674 transitions. Word has length 262 [2019-10-13 21:17:59,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:59,608 INFO L462 AbstractCegarLoop]: Abstraction has 4170 states and 5674 transitions. [2019-10-13 21:17:59,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:59,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4170 states and 5674 transitions. [2019-10-13 21:17:59,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-13 21:17:59,614 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:59,615 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:59,615 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:59,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:59,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1735445867, now seen corresponding path program 1 times [2019-10-13 21:17:59,616 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:59,616 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591929845] [2019-10-13 21:17:59,616 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,616 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:18:00,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591929845] [2019-10-13 21:18:00,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:00,080 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-13 21:18:00,080 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356639070] [2019-10-13 21:18:00,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-13 21:18:00,081 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:00,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-13 21:18:00,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:18:00,083 INFO L87 Difference]: Start difference. First operand 4170 states and 5674 transitions. Second operand 22 states. [2019-10-13 21:18:00,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:00,952 INFO L93 Difference]: Finished difference Result 7667 states and 10406 transitions. [2019-10-13 21:18:00,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 21:18:00,953 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 263 [2019-10-13 21:18:00,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:00,982 INFO L225 Difference]: With dead ends: 7667 [2019-10-13 21:18:00,982 INFO L226 Difference]: Without dead ends: 4280 [2019-10-13 21:18:00,994 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-10-13 21:18:01,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2019-10-13 21:18:01,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4280. [2019-10-13 21:18:01,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4280 states. [2019-10-13 21:18:01,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4280 states to 4280 states and 5819 transitions. [2019-10-13 21:18:01,220 INFO L78 Accepts]: Start accepts. Automaton has 4280 states and 5819 transitions. Word has length 263 [2019-10-13 21:18:01,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:01,221 INFO L462 AbstractCegarLoop]: Abstraction has 4280 states and 5819 transitions. [2019-10-13 21:18:01,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-13 21:18:01,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states and 5819 transitions. [2019-10-13 21:18:01,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-13 21:18:01,233 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:01,233 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:01,234 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:01,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:01,235 INFO L82 PathProgramCache]: Analyzing trace with hash 2129296523, now seen corresponding path program 1 times [2019-10-13 21:18:01,235 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:01,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869430672] [2019-10-13 21:18:01,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:01,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:01,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:01,750 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:18:01,751 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869430672] [2019-10-13 21:18:01,751 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:01,751 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 21:18:01,752 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125412215] [2019-10-13 21:18:01,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 21:18:01,753 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:01,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 21:18:01,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-10-13 21:18:01,754 INFO L87 Difference]: Start difference. First operand 4280 states and 5819 transitions. Second operand 24 states. [2019-10-13 21:18:02,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:02,665 INFO L93 Difference]: Finished difference Result 8259 states and 11369 transitions. [2019-10-13 21:18:02,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-13 21:18:02,666 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 272 [2019-10-13 21:18:02,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:02,756 INFO L225 Difference]: With dead ends: 8259 [2019-10-13 21:18:02,757 INFO L226 Difference]: Without dead ends: 4481 [2019-10-13 21:18:02,769 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=1037, Unknown=0, NotChecked=0, Total=1122 [2019-10-13 21:18:02,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2019-10-13 21:18:02,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 4481. [2019-10-13 21:18:02,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4481 states. [2019-10-13 21:18:02,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4481 states to 4481 states and 6163 transitions. [2019-10-13 21:18:02,991 INFO L78 Accepts]: Start accepts. Automaton has 4481 states and 6163 transitions. Word has length 272 [2019-10-13 21:18:02,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:02,992 INFO L462 AbstractCegarLoop]: Abstraction has 4481 states and 6163 transitions. [2019-10-13 21:18:02,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-13 21:18:02,992 INFO L276 IsEmpty]: Start isEmpty. Operand 4481 states and 6163 transitions. [2019-10-13 21:18:02,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2019-10-13 21:18:02,997 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:02,997 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:02,997 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:02,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:02,998 INFO L82 PathProgramCache]: Analyzing trace with hash -948496045, now seen corresponding path program 1 times [2019-10-13 21:18:02,998 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:02,998 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403325892] [2019-10-13 21:18:02,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:02,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:02,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-10-13 21:18:03,177 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403325892] [2019-10-13 21:18:03,177 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:03,177 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:03,177 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304485601] [2019-10-13 21:18:03,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:03,178 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:03,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:03,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:03,179 INFO L87 Difference]: Start difference. First operand 4481 states and 6163 transitions. Second operand 3 states. [2019-10-13 21:18:03,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:03,441 INFO L93 Difference]: Finished difference Result 12756 states and 18477 transitions. [2019-10-13 21:18:03,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:03,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2019-10-13 21:18:03,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:03,500 INFO L225 Difference]: With dead ends: 12756 [2019-10-13 21:18:03,500 INFO L226 Difference]: Without dead ends: 8321 [2019-10-13 21:18:03,520 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:03,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2019-10-13 21:18:03,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 8309. [2019-10-13 21:18:03,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8309 states. [2019-10-13 21:18:03,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8309 states to 8309 states and 11728 transitions. [2019-10-13 21:18:03,902 INFO L78 Accepts]: Start accepts. Automaton has 8309 states and 11728 transitions. Word has length 276 [2019-10-13 21:18:03,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:03,903 INFO L462 AbstractCegarLoop]: Abstraction has 8309 states and 11728 transitions. [2019-10-13 21:18:03,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:03,903 INFO L276 IsEmpty]: Start isEmpty. Operand 8309 states and 11728 transitions. [2019-10-13 21:18:03,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-13 21:18:03,909 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:03,909 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:03,910 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:03,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:03,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1353980626, now seen corresponding path program 1 times [2019-10-13 21:18:03,911 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:03,911 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521130893] [2019-10-13 21:18:03,911 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:03,911 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:03,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:04,658 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:18:04,658 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521130893] [2019-10-13 21:18:04,659 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:04,659 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:18:04,659 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615646753] [2019-10-13 21:18:04,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:18:04,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:04,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:18:04,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:04,661 INFO L87 Difference]: Start difference. First operand 8309 states and 11728 transitions. Second operand 6 states. [2019-10-13 21:18:05,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:05,844 INFO L93 Difference]: Finished difference Result 24174 states and 35225 transitions. [2019-10-13 21:18:05,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:18:05,844 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 272 [2019-10-13 21:18:05,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:05,939 INFO L225 Difference]: With dead ends: 24174 [2019-10-13 21:18:05,939 INFO L226 Difference]: Without dead ends: 16700 [2019-10-13 21:18:05,973 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:18:05,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16700 states. [2019-10-13 21:18:06,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16700 to 16571. [2019-10-13 21:18:06,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16571 states. [2019-10-13 21:18:06,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16571 states to 16571 states and 23687 transitions. [2019-10-13 21:18:06,789 INFO L78 Accepts]: Start accepts. Automaton has 16571 states and 23687 transitions. Word has length 272 [2019-10-13 21:18:06,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:06,790 INFO L462 AbstractCegarLoop]: Abstraction has 16571 states and 23687 transitions. [2019-10-13 21:18:06,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:18:06,790 INFO L276 IsEmpty]: Start isEmpty. Operand 16571 states and 23687 transitions. [2019-10-13 21:18:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-13 21:18:06,806 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:06,806 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:06,807 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:06,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:06,807 INFO L82 PathProgramCache]: Analyzing trace with hash -684946487, now seen corresponding path program 1 times [2019-10-13 21:18:06,808 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:06,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146061559] [2019-10-13 21:18:06,808 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,808 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:18:07,158 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146061559] [2019-10-13 21:18:07,159 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:07,159 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:18:07,159 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938389169] [2019-10-13 21:18:07,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:18:07,160 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:07,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:18:07,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:18:07,161 INFO L87 Difference]: Start difference. First operand 16571 states and 23687 transitions. Second operand 15 states. [2019-10-13 21:18:07,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:07,986 INFO L93 Difference]: Finished difference Result 23380 states and 33019 transitions. [2019-10-13 21:18:07,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 21:18:07,988 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 273 [2019-10-13 21:18:07,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:08,071 INFO L225 Difference]: With dead ends: 23380 [2019-10-13 21:18:08,072 INFO L226 Difference]: Without dead ends: 16679 [2019-10-13 21:18:08,098 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2019-10-13 21:18:08,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16679 states. [2019-10-13 21:18:08,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16679 to 16577. [2019-10-13 21:18:08,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16577 states. [2019-10-13 21:18:08,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16577 states to 16577 states and 23699 transitions. [2019-10-13 21:18:08,918 INFO L78 Accepts]: Start accepts. Automaton has 16577 states and 23699 transitions. Word has length 273 [2019-10-13 21:18:08,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:08,919 INFO L462 AbstractCegarLoop]: Abstraction has 16577 states and 23699 transitions. [2019-10-13 21:18:08,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:18:08,919 INFO L276 IsEmpty]: Start isEmpty. Operand 16577 states and 23699 transitions. [2019-10-13 21:18:08,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-13 21:18:08,930 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:08,931 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:08,931 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:08,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:08,932 INFO L82 PathProgramCache]: Analyzing trace with hash -98170368, now seen corresponding path program 1 times [2019-10-13 21:18:08,932 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:08,932 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093858523] [2019-10-13 21:18:08,932 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:08,932 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:08,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-13 21:18:09,133 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093858523] [2019-10-13 21:18:09,133 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:09,133 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:09,133 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157764150] [2019-10-13 21:18:09,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:09,134 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:09,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:09,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:09,135 INFO L87 Difference]: Start difference. First operand 16577 states and 23699 transitions. Second operand 5 states.