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_spec11_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:12:33,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:12:33,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:12:33,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:12:33,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:12:33,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:12:33,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:12:33,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:12:33,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:12:33,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:12:33,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:12:33,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:12:33,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:12:33,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:12:33,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:12:33,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:12:33,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:12:33,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:12:33,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:12:33,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:12:33,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:12:33,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:12:33,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:12:33,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:12:33,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:12:33,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:12:33,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:12:33,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:12:33,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:12:33,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:12:33,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:12:33,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:12:33,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:12:33,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:12:33,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:12:33,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:12:33,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:12:33,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:12:33,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:12:33,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:12:33,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:12:33,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:12:33,328 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:12:33,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:12:33,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:12:33,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:12:33,330 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:12:33,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:12:33,333 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:12:33,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:12:33,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:12:33,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:12:33,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:12:33,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:12:33,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:12:33,335 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:12:33,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:12:33,335 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:12:33,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:12:33,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:12:33,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:12:33,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:12:33,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:12:33,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:33,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:12:33,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:12:33,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:12:33,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:12:33,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:12:33,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:12:33,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:12:33,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:12:33,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:12:33,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:12:33,647 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:12:33,648 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:12:33,648 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product20.cil.c [2019-10-15 01:12:33,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84684175/15c6e7a277044aa4be94e351226bb634/FLAGb58a50ec8 [2019-10-15 01:12:34,423 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:12:34,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product20.cil.c [2019-10-15 01:12:34,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84684175/15c6e7a277044aa4be94e351226bb634/FLAGb58a50ec8 [2019-10-15 01:12:34,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84684175/15c6e7a277044aa4be94e351226bb634 [2019-10-15 01:12:34,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:12:34,598 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:12:34,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:34,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:12:34,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:12:34,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:34" (1/1) ... [2019-10-15 01:12:34,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b29eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:34, skipping insertion in model container [2019-10-15 01:12:34,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:34" (1/1) ... [2019-10-15 01:12:34,612 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:12:34,688 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:12:35,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:35,509 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:12:35,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:35,767 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:12:35,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:35 WrapperNode [2019-10-15 01:12:35,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:35,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:12:35,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:12:35,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:12:35,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:35" (1/1) ... [2019-10-15 01:12:35,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:35" (1/1) ... [2019-10-15 01:12:35,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:35" (1/1) ... [2019-10-15 01:12:35,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:35" (1/1) ... [2019-10-15 01:12:35,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:35" (1/1) ... [2019-10-15 01:12:35,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:35" (1/1) ... [2019-10-15 01:12:35,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:35" (1/1) ... [2019-10-15 01:12:35,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:12:35,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:12:35,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:12:35,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:12:35,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:36,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:12:36,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:12:36,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:36,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:12:36,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:12:36,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:12:36,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:36,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:12:36,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:36,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:12:36,016 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:12:36,016 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:12:36,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:12:36,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:12:36,017 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:12:36,017 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:12:36,018 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:12:36,018 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:12:36,018 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:12:36,018 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:12:36,018 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:12:36,020 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:12:36,020 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:12:36,020 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:12:36,021 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:12:36,021 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:12:36,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:12:36,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:12:36,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:12:36,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:12:36,022 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:12:36,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:12:36,022 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:12:36,022 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:12:36,022 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:12:36,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:12:36,023 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:12:36,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:12:36,023 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:12:36,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:12:36,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:12:36,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:12:36,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:12:36,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:12:36,024 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:12:36,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:12:36,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:12:36,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:12:36,025 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:12:36,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:12:36,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:12:36,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:12:36,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:12:36,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:12:36,026 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:12:36,027 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:12:36,027 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:12:36,027 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:12:36,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:36,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:36,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:36,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:12:36,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:12:36,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:12:36,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:36,029 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:12:36,029 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:12:36,029 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:12:36,029 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:36,029 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:12:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:12:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:12:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:12:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:12:36,030 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:12:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:12:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:12:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:12:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:12:36,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:12:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:12:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:12:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:12:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:12:36,032 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:12:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:12:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:12:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:12:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:12:36,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:12:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:12:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:12:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:12:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:12:36,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:12:36,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:12:36,035 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:12:36,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:12:36,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:12:36,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:12:36,036 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:12:36,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:12:36,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:12:36,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:12:36,036 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:12:36,036 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:12:36,037 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:12:36,037 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:12:36,037 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:12:36,037 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:12:36,037 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:12:36,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:12:36,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:12:36,038 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:12:36,038 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:12:36,038 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:12:36,038 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:12:36,038 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:12:36,039 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:12:36,039 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:12:36,039 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:12:36,039 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:12:36,039 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:12:36,039 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:12:36,040 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:12:36,040 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:12:36,040 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:12:36,040 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:12:36,040 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:12:36,040 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:12:36,040 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:12:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:12:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:12:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:12:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:12:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:12:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:12:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:12:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:12:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:12:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:12:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:12:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:12:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:12:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:12:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:12:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:12:36,045 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:12:36,045 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:12:36,045 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:12:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:12:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:12:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:12:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:12:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:12:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:12:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:12:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:12:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:12:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:12:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:12:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:12:36,048 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:12:36,048 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:12:36,048 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:12:36,048 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:12:36,048 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:12:36,048 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:12:36,048 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:12:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:12:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:12:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:12:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:12:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:12:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:12:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:12:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:12:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:12:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:12:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:12:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:12:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:12:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:12:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:12:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:12:36,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:12:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:12:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:12:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:12:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:12:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:12:36,052 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:12:36,053 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:12:36,053 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:12:36,053 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:12:36,053 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:12:36,053 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:12:36,053 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:12:36,053 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:12:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:12:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:12:36,054 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:12:36,056 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:12:36,056 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:12:36,056 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:12:36,056 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:12:36,056 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:12:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:12:36,057 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:12:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:12:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:12:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:12:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:12:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:12:36,058 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:12:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:12:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:12:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:12:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:12:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:12:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:12:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:12:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:12:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:12:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:12:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:12:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:12:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:12:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:12:38,463 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:12:38,463 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:12:38,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:38 BoogieIcfgContainer [2019-10-15 01:12:38,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:12:38,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:12:38,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:12:38,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:12:38,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:12:34" (1/3) ... [2019-10-15 01:12:38,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6876a310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:38, skipping insertion in model container [2019-10-15 01:12:38,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:35" (2/3) ... [2019-10-15 01:12:38,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6876a310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:38, skipping insertion in model container [2019-10-15 01:12:38,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:38" (3/3) ... [2019-10-15 01:12:38,474 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product20.cil.c [2019-10-15 01:12:38,486 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:12:38,497 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:12:38,511 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:12:38,546 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:12:38,546 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:12:38,546 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:12:38,546 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:12:38,546 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:12:38,546 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:12:38,547 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:12:38,547 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:12:38,579 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states. [2019-10-15 01:12:38,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-15 01:12:38,604 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:38,606 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:38,611 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:38,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:38,619 INFO L82 PathProgramCache]: Analyzing trace with hash 598149460, now seen corresponding path program 1 times [2019-10-15 01:12:38,630 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:38,630 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774406157] [2019-10-15 01:12:38,639 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:38,639 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:38,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:39,538 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:39,539 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774406157] [2019-10-15 01:12:39,541 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:39,541 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:12:39,542 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161993872] [2019-10-15 01:12:39,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:12:39,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:39,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:12:39,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:39,572 INFO L87 Difference]: Start difference. First operand 556 states. Second operand 2 states. [2019-10-15 01:12:39,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:39,665 INFO L93 Difference]: Finished difference Result 772 states and 1053 transitions. [2019-10-15 01:12:39,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:12:39,669 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 193 [2019-10-15 01:12:39,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:39,698 INFO L225 Difference]: With dead ends: 772 [2019-10-15 01:12:39,699 INFO L226 Difference]: Without dead ends: 514 [2019-10-15 01:12:39,713 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:39,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2019-10-15 01:12:39,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2019-10-15 01:12:39,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2019-10-15 01:12:39,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 704 transitions. [2019-10-15 01:12:39,881 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 704 transitions. Word has length 193 [2019-10-15 01:12:39,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:39,883 INFO L462 AbstractCegarLoop]: Abstraction has 514 states and 704 transitions. [2019-10-15 01:12:39,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:12:39,883 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 704 transitions. [2019-10-15 01:12:39,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:12:39,890 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:39,891 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:39,891 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:39,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:39,891 INFO L82 PathProgramCache]: Analyzing trace with hash -736139474, now seen corresponding path program 1 times [2019-10-15 01:12:39,892 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:39,892 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497655707] [2019-10-15 01:12:39,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:39,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:39,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:40,140 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:40,141 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497655707] [2019-10-15 01:12:40,141 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:40,141 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:40,142 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2247236] [2019-10-15 01:12:40,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:40,150 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:40,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:40,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:40,151 INFO L87 Difference]: Start difference. First operand 514 states and 704 transitions. Second operand 3 states. [2019-10-15 01:12:40,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:40,213 INFO L93 Difference]: Finished difference Result 755 states and 1016 transitions. [2019-10-15 01:12:40,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:40,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-15 01:12:40,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:40,220 INFO L225 Difference]: With dead ends: 755 [2019-10-15 01:12:40,220 INFO L226 Difference]: Without dead ends: 517 [2019-10-15 01:12:40,222 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:40,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2019-10-15 01:12:40,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 516. [2019-10-15 01:12:40,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2019-10-15 01:12:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 706 transitions. [2019-10-15 01:12:40,251 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 706 transitions. Word has length 194 [2019-10-15 01:12:40,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:40,251 INFO L462 AbstractCegarLoop]: Abstraction has 516 states and 706 transitions. [2019-10-15 01:12:40,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:40,252 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 706 transitions. [2019-10-15 01:12:40,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:12:40,256 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:40,256 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:40,257 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:40,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:40,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1382957214, now seen corresponding path program 1 times [2019-10-15 01:12:40,295 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:40,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125056360] [2019-10-15 01:12:40,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:40,296 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:40,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:40,496 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:40,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125056360] [2019-10-15 01:12:40,496 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:40,497 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:40,497 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100935267] [2019-10-15 01:12:40,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:40,501 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:40,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:40,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:40,502 INFO L87 Difference]: Start difference. First operand 516 states and 706 transitions. Second operand 3 states. [2019-10-15 01:12:40,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:40,571 INFO L93 Difference]: Finished difference Result 1010 states and 1413 transitions. [2019-10-15 01:12:40,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:40,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-10-15 01:12:40,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:40,579 INFO L225 Difference]: With dead ends: 1010 [2019-10-15 01:12:40,579 INFO L226 Difference]: Without dead ends: 559 [2019-10-15 01:12:40,582 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:40,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2019-10-15 01:12:40,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 558. [2019-10-15 01:12:40,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2019-10-15 01:12:40,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 778 transitions. [2019-10-15 01:12:40,608 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 778 transitions. Word has length 204 [2019-10-15 01:12:40,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:40,608 INFO L462 AbstractCegarLoop]: Abstraction has 558 states and 778 transitions. [2019-10-15 01:12:40,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 778 transitions. [2019-10-15 01:12:40,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:12:40,614 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:40,614 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:40,614 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:40,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:40,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1870197346, now seen corresponding path program 1 times [2019-10-15 01:12:40,615 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:40,615 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159772806] [2019-10-15 01:12:40,615 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:40,616 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:40,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:40,784 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:40,784 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159772806] [2019-10-15 01:12:40,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:40,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:40,785 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880192376] [2019-10-15 01:12:40,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:40,786 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:40,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:40,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:40,787 INFO L87 Difference]: Start difference. First operand 558 states and 778 transitions. Second operand 3 states. [2019-10-15 01:12:40,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:40,831 INFO L93 Difference]: Finished difference Result 1133 states and 1624 transitions. [2019-10-15 01:12:40,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:40,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-15 01:12:40,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:40,837 INFO L225 Difference]: With dead ends: 1133 [2019-10-15 01:12:40,837 INFO L226 Difference]: Without dead ends: 640 [2019-10-15 01:12:40,840 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:40,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2019-10-15 01:12:40,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 639. [2019-10-15 01:12:40,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2019-10-15 01:12:40,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 916 transitions. [2019-10-15 01:12:40,876 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 916 transitions. Word has length 205 [2019-10-15 01:12:40,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:40,877 INFO L462 AbstractCegarLoop]: Abstraction has 639 states and 916 transitions. [2019-10-15 01:12:40,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:40,877 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 916 transitions. [2019-10-15 01:12:40,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-15 01:12:40,997 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:40,997 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:40,998 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:40,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:40,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1813440642, now seen corresponding path program 1 times [2019-10-15 01:12:40,998 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:40,999 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078762301] [2019-10-15 01:12:40,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:41,000 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:41,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:41,289 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:41,290 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078762301] [2019-10-15 01:12:41,290 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:41,290 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:41,291 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480209733] [2019-10-15 01:12:41,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:41,293 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:41,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:41,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:41,294 INFO L87 Difference]: Start difference. First operand 639 states and 916 transitions. Second operand 3 states. [2019-10-15 01:12:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:41,349 INFO L93 Difference]: Finished difference Result 1370 states and 2028 transitions. [2019-10-15 01:12:41,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:41,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2019-10-15 01:12:41,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:41,360 INFO L225 Difference]: With dead ends: 1370 [2019-10-15 01:12:41,360 INFO L226 Difference]: Without dead ends: 796 [2019-10-15 01:12:41,364 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:41,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2019-10-15 01:12:41,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 795. [2019-10-15 01:12:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2019-10-15 01:12:41,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1180 transitions. [2019-10-15 01:12:41,428 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1180 transitions. Word has length 206 [2019-10-15 01:12:41,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:41,429 INFO L462 AbstractCegarLoop]: Abstraction has 795 states and 1180 transitions. [2019-10-15 01:12:41,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:41,429 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1180 transitions. [2019-10-15 01:12:41,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:12:41,439 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:41,439 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:41,440 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:41,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:41,440 INFO L82 PathProgramCache]: Analyzing trace with hash -786715774, now seen corresponding path program 1 times [2019-10-15 01:12:41,440 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:41,440 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595549350] [2019-10-15 01:12:41,441 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:41,441 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:41,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:41,718 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595549350] [2019-10-15 01:12:41,720 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:41,720 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:41,720 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448791796] [2019-10-15 01:12:41,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:41,722 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:41,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:41,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:41,723 INFO L87 Difference]: Start difference. First operand 795 states and 1180 transitions. Second operand 3 states. [2019-10-15 01:12:41,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:41,909 INFO L93 Difference]: Finished difference Result 1826 states and 2800 transitions. [2019-10-15 01:12:41,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:41,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2019-10-15 01:12:41,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:41,922 INFO L225 Difference]: With dead ends: 1826 [2019-10-15 01:12:41,923 INFO L226 Difference]: Without dead ends: 1096 [2019-10-15 01:12:41,926 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:41,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2019-10-15 01:12:41,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1095. [2019-10-15 01:12:41,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1095 states. [2019-10-15 01:12:42,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1684 transitions. [2019-10-15 01:12:42,008 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1684 transitions. Word has length 207 [2019-10-15 01:12:42,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:42,010 INFO L462 AbstractCegarLoop]: Abstraction has 1095 states and 1684 transitions. [2019-10-15 01:12:42,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:42,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1684 transitions. [2019-10-15 01:12:42,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-15 01:12:42,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:42,023 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:42,023 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:42,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:42,024 INFO L82 PathProgramCache]: Analyzing trace with hash -709603746, now seen corresponding path program 1 times [2019-10-15 01:12:42,024 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:42,024 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567637752] [2019-10-15 01:12:42,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,025 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:42,221 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:42,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567637752] [2019-10-15 01:12:42,222 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:42,222 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:42,223 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205217968] [2019-10-15 01:12:42,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:42,223 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:42,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:42,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:42,224 INFO L87 Difference]: Start difference. First operand 1095 states and 1684 transitions. Second operand 3 states. [2019-10-15 01:12:42,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:42,313 INFO L93 Difference]: Finished difference Result 2702 states and 4272 transitions. [2019-10-15 01:12:42,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:42,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2019-10-15 01:12:42,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:42,326 INFO L225 Difference]: With dead ends: 2702 [2019-10-15 01:12:42,326 INFO L226 Difference]: Without dead ends: 1672 [2019-10-15 01:12:42,332 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:42,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2019-10-15 01:12:42,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1671. [2019-10-15 01:12:42,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1671 states. [2019-10-15 01:12:42,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2644 transitions. [2019-10-15 01:12:42,434 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2644 transitions. Word has length 208 [2019-10-15 01:12:42,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:42,434 INFO L462 AbstractCegarLoop]: Abstraction has 1671 states and 2644 transitions. [2019-10-15 01:12:42,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:42,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2644 transitions. [2019-10-15 01:12:42,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-15 01:12:42,449 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:42,449 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:42,449 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:42,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:42,450 INFO L82 PathProgramCache]: Analyzing trace with hash 324914454, now seen corresponding path program 1 times [2019-10-15 01:12:42,450 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:42,450 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721317835] [2019-10-15 01:12:42,450 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,451 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:42,993 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:42,994 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721317835] [2019-10-15 01:12:42,994 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:42,994 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:12:42,995 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769623269] [2019-10-15 01:12:42,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:12:42,997 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:42,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:12:42,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:42,999 INFO L87 Difference]: Start difference. First operand 1671 states and 2644 transitions. Second operand 19 states. [2019-10-15 01:12:48,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:48,232 INFO L93 Difference]: Finished difference Result 4050 states and 6402 transitions. [2019-10-15 01:12:48,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:12:48,233 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 210 [2019-10-15 01:12:48,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:48,266 INFO L225 Difference]: With dead ends: 4050 [2019-10-15 01:12:48,266 INFO L226 Difference]: Without dead ends: 3825 [2019-10-15 01:12:48,271 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:12:48,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2019-10-15 01:12:48,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3788. [2019-10-15 01:12:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3788 states. [2019-10-15 01:12:48,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3788 states to 3788 states and 6041 transitions. [2019-10-15 01:12:48,573 INFO L78 Accepts]: Start accepts. Automaton has 3788 states and 6041 transitions. Word has length 210 [2019-10-15 01:12:48,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:48,574 INFO L462 AbstractCegarLoop]: Abstraction has 3788 states and 6041 transitions. [2019-10-15 01:12:48,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:12:48,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3788 states and 6041 transitions. [2019-10-15 01:12:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:12:48,597 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:48,597 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:48,598 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:48,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:48,598 INFO L82 PathProgramCache]: Analyzing trace with hash 39326315, now seen corresponding path program 1 times [2019-10-15 01:12:48,598 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:48,599 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329693486] [2019-10-15 01:12:48,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:48,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:48,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:48,953 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:48,953 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329693486] [2019-10-15 01:12:48,954 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:48,955 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:12:48,956 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21603788] [2019-10-15 01:12:48,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:12:48,958 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:48,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:12:48,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:48,959 INFO L87 Difference]: Start difference. First operand 3788 states and 6041 transitions. Second operand 15 states. [2019-10-15 01:12:52,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:52,520 INFO L93 Difference]: Finished difference Result 4841 states and 7516 transitions. [2019-10-15 01:12:52,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:12:52,521 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 211 [2019-10-15 01:12:52,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:52,550 INFO L225 Difference]: With dead ends: 4841 [2019-10-15 01:12:52,551 INFO L226 Difference]: Without dead ends: 3890 [2019-10-15 01:12:52,558 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:12:52,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3890 states. [2019-10-15 01:12:52,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3890 to 3858. [2019-10-15 01:12:52,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3858 states. [2019-10-15 01:12:52,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 6154 transitions. [2019-10-15 01:12:52,815 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 6154 transitions. Word has length 211 [2019-10-15 01:12:52,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:52,816 INFO L462 AbstractCegarLoop]: Abstraction has 3858 states and 6154 transitions. [2019-10-15 01:12:52,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:12:52,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 6154 transitions. [2019-10-15 01:12:52,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-10-15 01:12:52,851 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:52,852 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:52,853 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:52,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:52,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1834411390, now seen corresponding path program 1 times [2019-10-15 01:12:52,854 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:52,854 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67557763] [2019-10-15 01:12:52,855 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:52,855 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:52,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:53,270 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:53,271 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67557763] [2019-10-15 01:12:53,273 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:53,273 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:53,273 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5992073] [2019-10-15 01:12:53,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:53,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:53,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:53,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:53,279 INFO L87 Difference]: Start difference. First operand 3858 states and 6154 transitions. Second operand 5 states. [2019-10-15 01:12:53,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:53,448 INFO L93 Difference]: Finished difference Result 4619 states and 7184 transitions. [2019-10-15 01:12:53,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:12:53,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 215 [2019-10-15 01:12:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:53,475 INFO L225 Difference]: With dead ends: 4619 [2019-10-15 01:12:53,475 INFO L226 Difference]: Without dead ends: 3585 [2019-10-15 01:12:53,491 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:53,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3585 states. [2019-10-15 01:12:53,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3585 to 3585. [2019-10-15 01:12:53,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3585 states. [2019-10-15 01:12:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3585 states to 3585 states and 5771 transitions. [2019-10-15 01:12:53,700 INFO L78 Accepts]: Start accepts. Automaton has 3585 states and 5771 transitions. Word has length 215 [2019-10-15 01:12:53,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:53,700 INFO L462 AbstractCegarLoop]: Abstraction has 3585 states and 5771 transitions. [2019-10-15 01:12:53,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:53,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3585 states and 5771 transitions. [2019-10-15 01:12:53,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:12:53,720 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:53,720 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:53,721 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:53,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:53,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1243734070, now seen corresponding path program 1 times [2019-10-15 01:12:53,721 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:53,722 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019679727] [2019-10-15 01:12:53,722 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:53,722 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:53,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:54,040 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:12:54,040 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019679727] [2019-10-15 01:12:54,041 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:54,041 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:12:54,041 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877409060] [2019-10-15 01:12:54,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:12:54,042 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:54,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:12:54,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:12:54,042 INFO L87 Difference]: Start difference. First operand 3585 states and 5771 transitions. Second operand 16 states. [2019-10-15 01:12:54,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:54,514 INFO L93 Difference]: Finished difference Result 4456 states and 7000 transitions. [2019-10-15 01:12:54,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:12:54,515 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 211 [2019-10-15 01:12:54,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:54,539 INFO L225 Difference]: With dead ends: 4456 [2019-10-15 01:12:54,539 INFO L226 Difference]: Without dead ends: 3699 [2019-10-15 01:12:54,545 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:12:54,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2019-10-15 01:12:54,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3699. [2019-10-15 01:12:54,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3699 states. [2019-10-15 01:12:54,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 5939 transitions. [2019-10-15 01:12:54,721 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 5939 transitions. Word has length 211 [2019-10-15 01:12:54,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:54,722 INFO L462 AbstractCegarLoop]: Abstraction has 3699 states and 5939 transitions. [2019-10-15 01:12:54,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:12:54,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 5939 transitions. [2019-10-15 01:12:54,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:12:54,745 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:54,745 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:54,746 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:54,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:54,746 INFO L82 PathProgramCache]: Analyzing trace with hash -671262686, now seen corresponding path program 1 times [2019-10-15 01:12:54,747 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:54,747 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116168027] [2019-10-15 01:12:54,747 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,747 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:54,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116168027] [2019-10-15 01:12:54,974 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:54,974 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:54,974 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855053524] [2019-10-15 01:12:54,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:54,975 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:54,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:54,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:54,976 INFO L87 Difference]: Start difference. First operand 3699 states and 5939 transitions. Second operand 5 states. [2019-10-15 01:12:56,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:56,166 INFO L93 Difference]: Finished difference Result 7102 states and 11239 transitions. [2019-10-15 01:12:56,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:12:56,167 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2019-10-15 01:12:56,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:56,213 INFO L225 Difference]: With dead ends: 7102 [2019-10-15 01:12:56,214 INFO L226 Difference]: Without dead ends: 6525 [2019-10-15 01:12:56,222 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:12:56,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6525 states. [2019-10-15 01:12:56,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6525 to 6507. [2019-10-15 01:12:56,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6507 states. [2019-10-15 01:12:56,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 10415 transitions. [2019-10-15 01:12:56,539 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 10415 transitions. Word has length 211 [2019-10-15 01:12:56,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:56,539 INFO L462 AbstractCegarLoop]: Abstraction has 6507 states and 10415 transitions. [2019-10-15 01:12:56,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:56,540 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 10415 transitions. [2019-10-15 01:12:56,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:12:56,570 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:56,570 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:56,571 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:56,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:56,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1154938013, now seen corresponding path program 1 times [2019-10-15 01:12:56,571 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:56,572 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514245727] [2019-10-15 01:12:56,572 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:56,572 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:56,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:56,776 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:56,777 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514245727] [2019-10-15 01:12:56,777 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:56,777 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:12:56,778 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795333955] [2019-10-15 01:12:56,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:12:56,778 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:56,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:12:56,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:12:56,779 INFO L87 Difference]: Start difference. First operand 6507 states and 10415 transitions. Second operand 7 states. [2019-10-15 01:12:58,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:58,622 INFO L93 Difference]: Finished difference Result 13394 states and 21127 transitions. [2019-10-15 01:12:58,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:12:58,623 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2019-10-15 01:12:58,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:58,681 INFO L225 Difference]: With dead ends: 13394 [2019-10-15 01:12:58,681 INFO L226 Difference]: Without dead ends: 11141 [2019-10-15 01:12:58,698 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:12:58,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11141 states. [2019-10-15 01:12:59,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11141 to 11131. [2019-10-15 01:12:59,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11131 states. [2019-10-15 01:12:59,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11131 states to 11131 states and 17661 transitions. [2019-10-15 01:12:59,243 INFO L78 Accepts]: Start accepts. Automaton has 11131 states and 17661 transitions. Word has length 211 [2019-10-15 01:12:59,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:59,244 INFO L462 AbstractCegarLoop]: Abstraction has 11131 states and 17661 transitions. [2019-10-15 01:12:59,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:12:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand 11131 states and 17661 transitions. [2019-10-15 01:12:59,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-15 01:12:59,276 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:59,276 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:12:59,276 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:59,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:59,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1728661351, now seen corresponding path program 1 times [2019-10-15 01:12:59,277 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:59,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782744282] [2019-10-15 01:12:59,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:59,278 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:59,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:13:00,471 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782744282] [2019-10-15 01:13:00,471 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:00,471 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:13:00,471 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279044124] [2019-10-15 01:13:00,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:13:00,472 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:00,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:13:00,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:13:00,473 INFO L87 Difference]: Start difference. First operand 11131 states and 17661 transitions. Second operand 26 states. [2019-10-15 01:13:01,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:01,530 INFO L93 Difference]: Finished difference Result 18951 states and 29966 transitions. [2019-10-15 01:13:01,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-15 01:13:01,530 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 212 [2019-10-15 01:13:01,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:01,591 INFO L225 Difference]: With dead ends: 18951 [2019-10-15 01:13:01,592 INFO L226 Difference]: Without dead ends: 12074 [2019-10-15 01:13:01,631 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 01:13:01,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12074 states. [2019-10-15 01:13:02,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12074 to 12057. [2019-10-15 01:13:02,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12057 states. [2019-10-15 01:13:02,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12057 states to 12057 states and 19034 transitions. [2019-10-15 01:13:02,252 INFO L78 Accepts]: Start accepts. Automaton has 12057 states and 19034 transitions. Word has length 212 [2019-10-15 01:13:02,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:02,253 INFO L462 AbstractCegarLoop]: Abstraction has 12057 states and 19034 transitions. [2019-10-15 01:13:02,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:13:02,253 INFO L276 IsEmpty]: Start isEmpty. Operand 12057 states and 19034 transitions. [2019-10-15 01:13:02,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 01:13:02,281 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:02,282 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:02,282 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:02,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:02,283 INFO L82 PathProgramCache]: Analyzing trace with hash -925986545, now seen corresponding path program 1 times [2019-10-15 01:13:02,283 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:02,283 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254357963] [2019-10-15 01:13:02,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:02,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:02,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:13:02,584 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254357963] [2019-10-15 01:13:02,585 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:02,585 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:13:02,585 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340282627] [2019-10-15 01:13:02,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:13:02,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:02,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:13:02,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:13:02,587 INFO L87 Difference]: Start difference. First operand 12057 states and 19034 transitions. Second operand 10 states. [2019-10-15 01:13:02,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:02,794 INFO L93 Difference]: Finished difference Result 12156 states and 19156 transitions. [2019-10-15 01:13:02,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:13:02,795 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 216 [2019-10-15 01:13:02,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:02,855 INFO L225 Difference]: With dead ends: 12156 [2019-10-15 01:13:02,855 INFO L226 Difference]: Without dead ends: 12153 [2019-10-15 01:13:02,866 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:13:02,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12153 states. [2019-10-15 01:13:03,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12153 to 12153. [2019-10-15 01:13:03,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12153 states. [2019-10-15 01:13:03,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12153 states to 12153 states and 19122 transitions. [2019-10-15 01:13:03,416 INFO L78 Accepts]: Start accepts. Automaton has 12153 states and 19122 transitions. Word has length 216 [2019-10-15 01:13:03,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:03,417 INFO L462 AbstractCegarLoop]: Abstraction has 12153 states and 19122 transitions. [2019-10-15 01:13:03,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:13:03,417 INFO L276 IsEmpty]: Start isEmpty. Operand 12153 states and 19122 transitions. [2019-10-15 01:13:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-15 01:13:03,439 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:03,439 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:03,439 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:03,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:03,440 INFO L82 PathProgramCache]: Analyzing trace with hash -17024576, now seen corresponding path program 1 times [2019-10-15 01:13:03,440 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:03,440 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431590453] [2019-10-15 01:13:03,441 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:03,441 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:03,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:13:03,617 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431590453] [2019-10-15 01:13:03,619 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:03,619 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:13:03,619 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878069788] [2019-10-15 01:13:03,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:13:03,620 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:03,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:13:03,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:03,621 INFO L87 Difference]: Start difference. First operand 12153 states and 19122 transitions. Second operand 5 states. [2019-10-15 01:13:04,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:04,076 INFO L93 Difference]: Finished difference Result 20013 states and 31395 transitions. [2019-10-15 01:13:04,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:13:04,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 221 [2019-10-15 01:13:04,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:04,135 INFO L225 Difference]: With dead ends: 20013 [2019-10-15 01:13:04,136 INFO L226 Difference]: Without dead ends: 12516 [2019-10-15 01:13:04,176 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:04,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12516 states.