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_spec0_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:12:45,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:12:45,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:12:45,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:12:45,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:12:45,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:12:45,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:12:45,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:12:45,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:12:45,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:12:45,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:12:45,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:12:45,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:12:45,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:12:45,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:12:45,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:12:45,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:12:45,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:12:45,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:12:45,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:12:45,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:12:45,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:12:45,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:12:45,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:12:45,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:12:45,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:12:45,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:12:45,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:12:45,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:12:45,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:12:45,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:12:45,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:12:45,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:12:45,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:12:45,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:12:45,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:12:45,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:12:45,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:12:45,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:12:45,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:12:45,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:12:45,268 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:12:45,299 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:12:45,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:12:45,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:12:45,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:12:45,301 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:12:45,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:12:45,302 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:12:45,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:12:45,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:12:45,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:12:45,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:12:45,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:12:45,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:12:45,304 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:12:45,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:12:45,305 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:12:45,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:12:45,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:12:45,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:12:45,306 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:12:45,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:12:45,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:12:45,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:12:45,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:12:45,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:12:45,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:12:45,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:12:45,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:12:45,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:12:45,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:12:45,625 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:12:45,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:12:45,630 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:12:45,630 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:12:45,631 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product21.cil.c [2019-10-13 21:12:45,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1eadf2e7/b361705d54514d45ae72a7e9dd80f4a0/FLAG15a9c78a0 [2019-10-13 21:12:46,309 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:12:46,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product21.cil.c [2019-10-13 21:12:46,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1eadf2e7/b361705d54514d45ae72a7e9dd80f4a0/FLAG15a9c78a0 [2019-10-13 21:12:46,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1eadf2e7/b361705d54514d45ae72a7e9dd80f4a0 [2019-10-13 21:12:46,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:12:46,590 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:12:46,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:12:46,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:12:46,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:12:46,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:12:46" (1/1) ... [2019-10-13 21:12:46,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aceb178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:46, skipping insertion in model container [2019-10-13 21:12:46,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:12:46" (1/1) ... [2019-10-13 21:12:46,610 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:12:46,702 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:12:47,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:12:47,472 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:12:47,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:12:47,717 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:12:47,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:47 WrapperNode [2019-10-13 21:12:47,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:12:47,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:12:47,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:12:47,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:12:47,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:47" (1/1) ... [2019-10-13 21:12:47,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:47" (1/1) ... [2019-10-13 21:12:47,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:47" (1/1) ... [2019-10-13 21:12:47,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:47" (1/1) ... [2019-10-13 21:12:47,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:47" (1/1) ... [2019-10-13 21:12:47,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:47" (1/1) ... [2019-10-13 21:12:47,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:47" (1/1) ... [2019-10-13 21:12:47,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:12:47,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:12:47,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:12:47,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:12:47,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:12:47,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:12:47,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:12:47,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:12:47,988 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:12:47,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:12:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:12:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:12:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:12:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:12:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:12:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:12:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:12:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:12:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:12:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:12:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:12:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:12:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:12:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:12:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:12:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:12:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:12:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:12:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:12:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:12:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:12:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:12:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:12:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:12:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:12:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:12:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:12:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:12:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:12:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:12:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:12:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:12:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:12:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:12:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:12:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:12:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:12:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:12:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:12:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:12:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:12:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:12:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:12:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:12:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:12:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:12:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:12:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:12:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:12:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:12:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:12:47,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:12:47,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:12:47,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:12:47,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:12:47,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:12:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:12:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:12:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:12:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:12:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:12:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:12:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:12:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:12:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:12:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:12:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:12:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:12:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:12:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:12:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:12:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:12:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:12:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:12:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:12:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:12:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:12:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:12:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:12:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:12:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:12:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:12:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:12:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:12:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:12:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:12:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:12:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:12:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:12:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:12:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:12:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:12:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:12:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:12:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:12:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:12:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:12:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:12:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:12:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:12:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:12:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:12:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:12:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:12:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:12:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:12:48,008 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:12:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:12:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:12:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:12:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:12:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:12:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:12:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:12:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:12:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:12:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:12:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:12:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:12:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:12:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:12:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:12:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:12:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:12:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:12:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:12:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:12:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:12:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:12:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:12:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:12:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:12:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:12:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:12:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:12:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:12:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:12:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:12:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:12:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:12:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:12:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:12:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:12:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:12:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:12:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:12:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:12:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:12:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:12:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:12:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:12:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:12:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:12:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:12:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:12:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:12:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:12:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:12:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:12:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:12:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:12:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:12:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:12:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:12:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:12:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:12:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:12:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:12:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:12:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:12:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:12:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:12:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:12:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:12:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:12:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:12:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:12:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:12:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:12:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:12:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:12:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:12:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:12:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:12:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:12:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:12:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:12:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:12:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:12:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:12:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:12:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:12:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:12:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:12:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:12:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:12:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:12:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:12:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:12:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:12:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:12:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:12:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:12:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:12:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:12:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:12:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:12:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:12:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:12:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:12:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:12:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:12:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:12:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:12:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:12:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:12:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:12:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:12:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:12:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:12:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:12:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:12:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:12:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:12:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:12:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:12:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:12:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:12:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:12:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:12:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:12:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:12:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:12:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:12:50,232 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:12:50,232 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:12:50,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:12:50 BoogieIcfgContainer [2019-10-13 21:12:50,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:12:50,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:12:50,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:12:50,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:12:50,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:12:46" (1/3) ... [2019-10-13 21:12:50,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21660214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:12:50, skipping insertion in model container [2019-10-13 21:12:50,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:47" (2/3) ... [2019-10-13 21:12:50,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21660214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:12:50, skipping insertion in model container [2019-10-13 21:12:50,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:12:50" (3/3) ... [2019-10-13 21:12:50,244 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product21.cil.c [2019-10-13 21:12:50,255 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:12:50,269 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:12:50,282 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:12:50,331 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:12:50,331 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:12:50,331 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:12:50,332 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:12:50,332 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:12:50,332 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:12:50,332 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:12:50,332 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:12:50,376 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states. [2019-10-13 21:12:50,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:12:50,416 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:50,421 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:50,424 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:50,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:50,432 INFO L82 PathProgramCache]: Analyzing trace with hash -2004789445, now seen corresponding path program 1 times [2019-10-13 21:12:50,443 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:50,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988448086] [2019-10-13 21:12:50,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:50,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:50,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:51,160 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:12:51,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988448086] [2019-10-13 21:12:51,163 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:51,163 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:12:51,164 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339834951] [2019-10-13 21:12:51,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:12:51,173 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:51,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:12:51,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:12:51,191 INFO L87 Difference]: Start difference. First operand 566 states. Second operand 2 states. [2019-10-13 21:12:51,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:51,272 INFO L93 Difference]: Finished difference Result 818 states and 1111 transitions. [2019-10-13 21:12:51,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:12:51,273 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-10-13 21:12:51,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:51,304 INFO L225 Difference]: With dead ends: 818 [2019-10-13 21:12:51,304 INFO L226 Difference]: Without dead ends: 537 [2019-10-13 21:12:51,318 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 [2019-10-13 21:12:51,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-10-13 21:12:51,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-10-13 21:12:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-10-13 21:12:51,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 733 transitions. [2019-10-13 21:12:51,471 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 733 transitions. Word has length 198 [2019-10-13 21:12:51,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:51,474 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 733 transitions. [2019-10-13 21:12:51,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:12:51,474 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 733 transitions. [2019-10-13 21:12:51,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 21:12:51,480 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:51,481 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:51,481 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:51,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:51,482 INFO L82 PathProgramCache]: Analyzing trace with hash -24862393, now seen corresponding path program 1 times [2019-10-13 21:12:51,482 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:51,482 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394157238] [2019-10-13 21:12:51,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:51,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:51,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:51,809 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:12:51,809 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394157238] [2019-10-13 21:12:51,809 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:51,810 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:12:51,810 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714055045] [2019-10-13 21:12:51,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:12:51,819 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:51,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:12:51,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:12:51,820 INFO L87 Difference]: Start difference. First operand 537 states and 733 transitions. Second operand 3 states. [2019-10-13 21:12:51,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:51,933 INFO L93 Difference]: Finished difference Result 801 states and 1074 transitions. [2019-10-13 21:12:51,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:12:51,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-13 21:12:51,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:51,949 INFO L225 Difference]: With dead ends: 801 [2019-10-13 21:12:51,949 INFO L226 Difference]: Without dead ends: 540 [2019-10-13 21:12:51,953 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:12:51,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-10-13 21:12:51,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 539. [2019-10-13 21:12:51,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-10-13 21:12:52,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 735 transitions. [2019-10-13 21:12:52,004 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 735 transitions. Word has length 199 [2019-10-13 21:12:52,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:52,009 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 735 transitions. [2019-10-13 21:12:52,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:12:52,009 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 735 transitions. [2019-10-13 21:12:52,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-13 21:12:52,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:52,023 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:52,023 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:52,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:52,024 INFO L82 PathProgramCache]: Analyzing trace with hash 712401851, now seen corresponding path program 1 times [2019-10-13 21:12:52,025 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:52,025 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081393115] [2019-10-13 21:12:52,025 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:52,026 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:52,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:52,412 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:12:52,412 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081393115] [2019-10-13 21:12:52,413 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:52,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:12:52,414 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55377949] [2019-10-13 21:12:52,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:12:52,419 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:52,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:12:52,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:12:52,420 INFO L87 Difference]: Start difference. First operand 539 states and 735 transitions. Second operand 3 states. [2019-10-13 21:12:52,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:52,490 INFO L93 Difference]: Finished difference Result 1056 states and 1471 transitions. [2019-10-13 21:12:52,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:12:52,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-13 21:12:52,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:52,499 INFO L225 Difference]: With dead ends: 1056 [2019-10-13 21:12:52,499 INFO L226 Difference]: Without dead ends: 582 [2019-10-13 21:12:52,503 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:12:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2019-10-13 21:12:52,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 581. [2019-10-13 21:12:52,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2019-10-13 21:12:52,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 807 transitions. [2019-10-13 21:12:52,547 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 807 transitions. Word has length 205 [2019-10-13 21:12:52,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:52,549 INFO L462 AbstractCegarLoop]: Abstraction has 581 states and 807 transitions. [2019-10-13 21:12:52,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:12:52,549 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 807 transitions. [2019-10-13 21:12:52,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-13 21:12:52,555 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:52,555 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:52,556 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:52,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:52,556 INFO L82 PathProgramCache]: Analyzing trace with hash -2088954863, now seen corresponding path program 1 times [2019-10-13 21:12:52,557 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:52,557 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927507714] [2019-10-13 21:12:52,557 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:52,557 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:52,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:53,134 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:12:53,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927507714] [2019-10-13 21:12:53,135 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:53,135 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:12:53,135 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626274601] [2019-10-13 21:12:53,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:12:53,136 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:53,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:12:53,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:12:53,137 INFO L87 Difference]: Start difference. First operand 581 states and 807 transitions. Second operand 19 states. [2019-10-13 21:12:58,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:58,151 INFO L93 Difference]: Finished difference Result 1939 states and 2714 transitions. [2019-10-13 21:12:58,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:12:58,152 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 206 [2019-10-13 21:12:58,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:58,167 INFO L225 Difference]: With dead ends: 1939 [2019-10-13 21:12:58,167 INFO L226 Difference]: Without dead ends: 1691 [2019-10-13 21:12:58,171 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 [2019-10-13 21:12:58,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2019-10-13 21:12:58,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1654. [2019-10-13 21:12:58,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-10-13 21:12:58,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2323 transitions. [2019-10-13 21:12:58,279 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2323 transitions. Word has length 206 [2019-10-13 21:12:58,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:58,280 INFO L462 AbstractCegarLoop]: Abstraction has 1654 states and 2323 transitions. [2019-10-13 21:12:58,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:12:58,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2323 transitions. [2019-10-13 21:12:58,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:12:58,289 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:58,289 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:58,289 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:58,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:58,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1909535068, now seen corresponding path program 1 times [2019-10-13 21:12:58,290 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:58,291 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122562845] [2019-10-13 21:12:58,291 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:58,291 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:58,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:58,599 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:12:58,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122562845] [2019-10-13 21:12:58,599 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:58,600 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 21:12:58,600 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485047084] [2019-10-13 21:12:58,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 21:12:58,600 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:58,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 21:12:58,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:12:58,601 INFO L87 Difference]: Start difference. First operand 1654 states and 2323 transitions. Second operand 16 states. [2019-10-13 21:12:59,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:59,144 INFO L93 Difference]: Finished difference Result 2875 states and 4040 transitions. [2019-10-13 21:12:59,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 21:12:59,144 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 207 [2019-10-13 21:12:59,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:59,157 INFO L225 Difference]: With dead ends: 2875 [2019-10-13 21:12:59,157 INFO L226 Difference]: Without dead ends: 1824 [2019-10-13 21:12:59,162 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 [2019-10-13 21:12:59,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2019-10-13 21:12:59,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1824. [2019-10-13 21:12:59,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1824 states. [2019-10-13 21:12:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2576 transitions. [2019-10-13 21:12:59,245 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2576 transitions. Word has length 207 [2019-10-13 21:12:59,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:59,245 INFO L462 AbstractCegarLoop]: Abstraction has 1824 states and 2576 transitions. [2019-10-13 21:12:59,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 21:12:59,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2576 transitions. [2019-10-13 21:12:59,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:12:59,252 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:59,253 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:59,253 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:59,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:59,253 INFO L82 PathProgramCache]: Analyzing trace with hash 392350703, now seen corresponding path program 1 times [2019-10-13 21:12:59,253 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:59,254 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292620292] [2019-10-13 21:12:59,254 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:59,254 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:59,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:59,581 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:12:59,582 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292620292] [2019-10-13 21:12:59,582 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:59,582 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:12:59,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913953605] [2019-10-13 21:12:59,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:12:59,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:59,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:12:59,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:12:59,585 INFO L87 Difference]: Start difference. First operand 1824 states and 2576 transitions. Second operand 15 states. [2019-10-13 21:13:03,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:03,600 INFO L93 Difference]: Finished difference Result 3085 states and 4346 transitions. [2019-10-13 21:13:03,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:13:03,600 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 207 [2019-10-13 21:13:03,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:03,625 INFO L225 Difference]: With dead ends: 3085 [2019-10-13 21:13:03,625 INFO L226 Difference]: Without dead ends: 1924 [2019-10-13 21:13:03,633 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:13:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2019-10-13 21:13:03,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1894. [2019-10-13 21:13:03,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1894 states. [2019-10-13 21:13:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2689 transitions. [2019-10-13 21:13:03,757 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2689 transitions. Word has length 207 [2019-10-13 21:13:03,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:03,759 INFO L462 AbstractCegarLoop]: Abstraction has 1894 states and 2689 transitions. [2019-10-13 21:13:03,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:13:03,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2689 transitions. [2019-10-13 21:13:03,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:13:03,769 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:03,770 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:03,770 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:03,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:03,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1263804375, now seen corresponding path program 1 times [2019-10-13 21:13:03,771 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:03,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782653583] [2019-10-13 21:13:03,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:03,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:03,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:04,040 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:04,041 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782653583] [2019-10-13 21:13:04,041 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:04,041 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:13:04,042 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390179106] [2019-10-13 21:13:04,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:13:04,044 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:04,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:13:04,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:13:04,045 INFO L87 Difference]: Start difference. First operand 1894 states and 2689 transitions. Second operand 5 states. [2019-10-13 21:13:05,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:05,162 INFO L93 Difference]: Finished difference Result 4686 states and 6611 transitions. [2019-10-13 21:13:05,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:13:05,163 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 207 [2019-10-13 21:13:05,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:05,254 INFO L225 Difference]: With dead ends: 4686 [2019-10-13 21:13:05,255 INFO L226 Difference]: Without dead ends: 4065 [2019-10-13 21:13:05,259 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 [2019-10-13 21:13:05,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2019-10-13 21:13:05,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 4047. [2019-10-13 21:13:05,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4047 states. [2019-10-13 21:13:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4047 states to 4047 states and 5732 transitions. [2019-10-13 21:13:05,468 INFO L78 Accepts]: Start accepts. Automaton has 4047 states and 5732 transitions. Word has length 207 [2019-10-13 21:13:05,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:05,468 INFO L462 AbstractCegarLoop]: Abstraction has 4047 states and 5732 transitions. [2019-10-13 21:13:05,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:13:05,469 INFO L276 IsEmpty]: Start isEmpty. Operand 4047 states and 5732 transitions. [2019-10-13 21:13:05,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:13:05,483 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:05,483 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:05,484 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:05,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:05,484 INFO L82 PathProgramCache]: Analyzing trace with hash -154989176, now seen corresponding path program 1 times [2019-10-13 21:13:05,485 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:05,485 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669620924] [2019-10-13 21:13:05,485 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:05,486 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:05,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:05,722 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:05,722 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669620924] [2019-10-13 21:13:05,723 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:05,723 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:05,723 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891091658] [2019-10-13 21:13:05,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:05,724 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:05,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:05,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:05,725 INFO L87 Difference]: Start difference. First operand 4047 states and 5732 transitions. Second operand 6 states. [2019-10-13 21:13:06,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:06,467 INFO L93 Difference]: Finished difference Result 11214 states and 15982 transitions. [2019-10-13 21:13:06,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:06,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2019-10-13 21:13:06,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:06,523 INFO L225 Difference]: With dead ends: 11214 [2019-10-13 21:13:06,523 INFO L226 Difference]: Without dead ends: 8129 [2019-10-13 21:13:06,540 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:06,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8129 states. [2019-10-13 21:13:06,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8129 to 8086. [2019-10-13 21:13:06,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8086 states. [2019-10-13 21:13:07,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8086 states to 8086 states and 11458 transitions. [2019-10-13 21:13:07,024 INFO L78 Accepts]: Start accepts. Automaton has 8086 states and 11458 transitions. Word has length 207 [2019-10-13 21:13:07,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:07,025 INFO L462 AbstractCegarLoop]: Abstraction has 8086 states and 11458 transitions. [2019-10-13 21:13:07,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:13:07,025 INFO L276 IsEmpty]: Start isEmpty. Operand 8086 states and 11458 transitions. [2019-10-13 21:13:07,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 21:13:07,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:07,048 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:07,049 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:07,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:07,049 INFO L82 PathProgramCache]: Analyzing trace with hash 927792726, now seen corresponding path program 1 times [2019-10-13 21:13:07,049 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:07,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133999103] [2019-10-13 21:13:07,050 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:07,050 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:07,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:07,247 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133999103] [2019-10-13 21:13:07,249 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:07,249 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:13:07,249 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976843786] [2019-10-13 21:13:07,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:13:07,250 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:07,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:13:07,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:07,251 INFO L87 Difference]: Start difference. First operand 8086 states and 11458 transitions. Second operand 9 states. [2019-10-13 21:13:07,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:07,635 INFO L93 Difference]: Finished difference Result 14679 states and 20862 transitions. [2019-10-13 21:13:07,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:13:07,635 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2019-10-13 21:13:07,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:07,706 INFO L225 Difference]: With dead ends: 14679 [2019-10-13 21:13:07,706 INFO L226 Difference]: Without dead ends: 8776 [2019-10-13 21:13:07,738 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:13:07,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8776 states. [2019-10-13 21:13:08,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8776 to 8716. [2019-10-13 21:13:08,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8716 states. [2019-10-13 21:13:08,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8716 states to 8716 states and 12428 transitions. [2019-10-13 21:13:08,405 INFO L78 Accepts]: Start accepts. Automaton has 8716 states and 12428 transitions. Word has length 208 [2019-10-13 21:13:08,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:08,407 INFO L462 AbstractCegarLoop]: Abstraction has 8716 states and 12428 transitions. [2019-10-13 21:13:08,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:13:08,407 INFO L276 IsEmpty]: Start isEmpty. Operand 8716 states and 12428 transitions. [2019-10-13 21:13:08,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:13:08,424 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:08,424 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:08,424 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:08,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:08,425 INFO L82 PathProgramCache]: Analyzing trace with hash -464354170, now seen corresponding path program 1 times [2019-10-13 21:13:08,425 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:08,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322358123] [2019-10-13 21:13:08,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:08,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:08,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:08,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322358123] [2019-10-13 21:13:08,613 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:08,613 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:08,613 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992437121] [2019-10-13 21:13:08,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:08,615 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:08,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:08,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:08,616 INFO L87 Difference]: Start difference. First operand 8716 states and 12428 transitions. Second operand 6 states. [2019-10-13 21:13:09,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:09,524 INFO L93 Difference]: Finished difference Result 24424 states and 35003 transitions. [2019-10-13 21:13:09,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:09,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 209 [2019-10-13 21:13:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:09,628 INFO L225 Difference]: With dead ends: 24424 [2019-10-13 21:13:09,628 INFO L226 Difference]: Without dead ends: 17567 [2019-10-13 21:13:09,666 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:09,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17567 states. [2019-10-13 21:13:11,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17567 to 17404. [2019-10-13 21:13:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17404 states. [2019-10-13 21:13:11,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17404 states to 17404 states and 24839 transitions. [2019-10-13 21:13:11,132 INFO L78 Accepts]: Start accepts. Automaton has 17404 states and 24839 transitions. Word has length 209 [2019-10-13 21:13:11,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:11,132 INFO L462 AbstractCegarLoop]: Abstraction has 17404 states and 24839 transitions. [2019-10-13 21:13:11,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:13:11,133 INFO L276 IsEmpty]: Start isEmpty. Operand 17404 states and 24839 transitions. [2019-10-13 21:13:11,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 21:13:11,163 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:11,163 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:11,163 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:11,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:11,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1595148004, now seen corresponding path program 1 times [2019-10-13 21:13:11,164 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:11,164 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786019894] [2019-10-13 21:13:11,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:11,165 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:11,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:11,366 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:11,366 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786019894] [2019-10-13 21:13:11,366 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:11,367 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:13:11,367 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722867876] [2019-10-13 21:13:11,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:13:11,368 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:11,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:13:11,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:11,368 INFO L87 Difference]: Start difference. First operand 17404 states and 24839 transitions. Second operand 9 states. [2019-10-13 21:13:11,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:11,943 INFO L93 Difference]: Finished difference Result 31567 states and 45065 transitions. [2019-10-13 21:13:11,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:13:11,944 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 210 [2019-10-13 21:13:11,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:12,027 INFO L225 Difference]: With dead ends: 31567 [2019-10-13 21:13:12,027 INFO L226 Difference]: Without dead ends: 18464 [2019-10-13 21:13:12,072 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:13:12,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18464 states. [2019-10-13 21:13:12,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18464 to 18394. [2019-10-13 21:13:12,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18394 states. [2019-10-13 21:13:13,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18394 states to 18394 states and 26314 transitions. [2019-10-13 21:13:13,140 INFO L78 Accepts]: Start accepts. Automaton has 18394 states and 26314 transitions. Word has length 210 [2019-10-13 21:13:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:13,140 INFO L462 AbstractCegarLoop]: Abstraction has 18394 states and 26314 transitions. [2019-10-13 21:13:13,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:13:13,141 INFO L276 IsEmpty]: Start isEmpty. Operand 18394 states and 26314 transitions. [2019-10-13 21:13:13,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 21:13:13,188 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:13,189 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:13,189 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:13,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:13,190 INFO L82 PathProgramCache]: Analyzing trace with hash 164838088, now seen corresponding path program 1 times [2019-10-13 21:13:13,190 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:13,190 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470446123] [2019-10-13 21:13:13,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:13,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:13,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:13,354 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470446123] [2019-10-13 21:13:13,355 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:13,355 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:13,355 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282611844] [2019-10-13 21:13:13,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:13,356 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:13,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:13,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:13,356 INFO L87 Difference]: Start difference. First operand 18394 states and 26314 transitions. Second operand 6 states. [2019-10-13 21:13:14,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:14,627 INFO L93 Difference]: Finished difference Result 51124 states and 73545 transitions. [2019-10-13 21:13:14,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:14,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2019-10-13 21:13:14,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:14,767 INFO L225 Difference]: With dead ends: 51124 [2019-10-13 21:13:14,768 INFO L226 Difference]: Without dead ends: 33194 [2019-10-13 21:13:14,814 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:14,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33194 states. [2019-10-13 21:13:16,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33194 to 32899. [2019-10-13 21:13:16,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32899 states.