/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:53:27,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:53:27,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:53:27,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:53:27,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:53:27,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:53:27,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:53:27,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:53:27,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:53:27,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:53:27,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:53:27,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:53:27,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:53:27,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:53:27,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:53:27,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:53:27,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:53:27,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:53:27,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:53:27,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:53:27,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:53:27,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:53:27,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:53:27,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:53:27,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:53:27,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:53:27,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:53:27,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:53:27,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:53:27,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:53:27,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:53:27,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:53:27,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:53:27,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:53:27,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:53:27,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:53:27,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:53:27,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:53:27,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:53:27,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:53:27,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:53:27,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:53:27,227 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:53:27,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:53:27,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:53:27,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:53:27,229 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:53:27,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:53:27,229 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:53:27,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:53:27,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:53:27,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:53:27,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:53:27,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:53:27,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:53:27,231 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:53:27,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:53:27,231 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:53:27,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:53:27,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:53:27,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:53:27,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:53:27,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:53:27,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:53:27,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:53:27,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:53:27,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:53:27,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:53:27,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:53:27,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:53:27,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:53:27,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:53:27,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:53:27,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:53:27,566 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:53:27,566 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:53:27,567 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product28.cil.c [2019-11-07 00:53:27,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed269973/95e69548f21447d08a2f1b48eaab65ee/FLAG8369b577e [2019-11-07 00:53:28,256 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:53:28,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product28.cil.c [2019-11-07 00:53:28,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed269973/95e69548f21447d08a2f1b48eaab65ee/FLAG8369b577e [2019-11-07 00:53:28,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed269973/95e69548f21447d08a2f1b48eaab65ee [2019-11-07 00:53:28,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:53:28,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:53:28,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:53:28,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:53:28,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:53:28,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee57cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28, skipping insertion in model container [2019-11-07 00:53:28,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,559 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:53:28,720 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:53:29,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:53:29,569 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:53:29,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:53:29,799 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:53:29,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29 WrapperNode [2019-11-07 00:53:29,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:53:29,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:53:29,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:53:29,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:53:29,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2019-11-07 00:53:29,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2019-11-07 00:53:29,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2019-11-07 00:53:29,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2019-11-07 00:53:29,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2019-11-07 00:53:30,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2019-11-07 00:53:30,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2019-11-07 00:53:30,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:53:30,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:53:30,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:53:30,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:53:30,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:53:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:53:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:53:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:53:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:53:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:53:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:53:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:53:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:53:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:53:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:53:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:53:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:53:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:53:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:53:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:53:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:53:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:53:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:53:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:53:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:53:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:53:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:53:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:53:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:53:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 00:53:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:53:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:53:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:53:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:53:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:53:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:53:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:53:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:53:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:53:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:53:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:53:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:53:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:53:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:53:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:53:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:53:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-11-07 00:53:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 00:53:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:53:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:53:30,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:53:30,183 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:53:30,184 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:53:30,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:53:30,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:53:30,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:53:30,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:53:30,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:53:30,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:53:30,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:53:30,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:53:30,185 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:53:30,185 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:53:30,186 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:53:30,186 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:53:30,186 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:53:30,186 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:53:30,187 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:53:30,187 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:53:30,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:53:30,187 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:53:30,188 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:53:30,188 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:53:30,188 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:53:30,188 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:53:30,188 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:53:30,188 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:53:30,189 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:53:30,190 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:53:30,190 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:53:30,190 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:53:30,190 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:53:30,190 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:53:30,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:53:30,191 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:53:30,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:53:30,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:53:30,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:53:30,192 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:53:30,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:53:30,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:53:30,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:53:30,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:53:30,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:53:30,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:53:30,194 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:53:30,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:53:30,195 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:53:30,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:53:30,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:53:30,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:53:30,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:53:30,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:53:30,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:53:30,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:53:30,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:53:30,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:53:30,196 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:53:30,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:53:30,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:53:30,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:53:30,197 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:53:30,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:53:30,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:53:30,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:53:30,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:53:30,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:53:30,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:53:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:53:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:53:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:53:30,199 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:53:30,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:53:30,199 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:53:30,199 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:53:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:53:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:53:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:53:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:53:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:53:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:53:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:53:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:53:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:53:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:53:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:53:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:53:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:53:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:53:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:53:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:53:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:53:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:53:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:53:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:53:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:53:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:53:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:53:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:53:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:53:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:53:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:53:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:53:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:53:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:53:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:53:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:53:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:53:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:53:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:53:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:53:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:53:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:53:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:53:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:53:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:53:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:53:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:53:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:53:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:53:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:53:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:53:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:53:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:53:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:53:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:53:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:53:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:53:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:53:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:53:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:53:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:53:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:53:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:53:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:53:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:53:30,223 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:53:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 00:53:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:53:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:53:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:53:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:53:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:53:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:53:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:53:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:53:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:53:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-11-07 00:53:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 00:53:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:53:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:53:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:53:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:53:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:53:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:53:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:53:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:53:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:53:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:53:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:53:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:53:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:53:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:53:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:53:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:53:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:53:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:53:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:53:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:53:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:53:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:53:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:53:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:53:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:53:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:53:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:53:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:53:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:53:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:53:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:53:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:53:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:53:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:53:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:53:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:53:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:53:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:53:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:53:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:53:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:53:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:53:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:53:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:53:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:53:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:53:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:53:32,730 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:53:32,731 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:53:32,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:32 BoogieIcfgContainer [2019-11-07 00:53:32,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:53:32,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:53:32,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:53:32,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:53:32,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:28" (1/3) ... [2019-11-07 00:53:32,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7fc52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:32, skipping insertion in model container [2019-11-07 00:53:32,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (2/3) ... [2019-11-07 00:53:32,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7fc52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:32, skipping insertion in model container [2019-11-07 00:53:32,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:32" (3/3) ... [2019-11-07 00:53:32,742 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product28.cil.c [2019-11-07 00:53:32,752 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:53:32,762 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:53:32,774 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:53:32,806 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:53:32,807 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:53:32,807 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:53:32,807 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:53:32,807 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:53:32,807 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:53:32,808 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:53:32,808 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:53:32,839 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states. [2019-11-07 00:53:32,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-07 00:53:32,862 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:32,863 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:32,866 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:32,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:32,872 INFO L82 PathProgramCache]: Analyzing trace with hash 706098665, now seen corresponding path program 1 times [2019-11-07 00:53:32,885 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:32,886 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344719644] [2019-11-07 00:53:32,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:33,598 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:33,599 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344719644] [2019-11-07 00:53:33,599 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:33,600 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:53:33,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91070363] [2019-11-07 00:53:33,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:53:33,608 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:33,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:53:33,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:53:33,625 INFO L87 Difference]: Start difference. First operand 517 states. Second operand 2 states. [2019-11-07 00:53:33,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:33,739 INFO L93 Difference]: Finished difference Result 731 states and 969 transitions. [2019-11-07 00:53:33,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:53:33,742 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-11-07 00:53:33,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:33,769 INFO L225 Difference]: With dead ends: 731 [2019-11-07 00:53:33,769 INFO L226 Difference]: Without dead ends: 466 [2019-11-07 00:53:33,776 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:53:33,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2019-11-07 00:53:33,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2019-11-07 00:53:33,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2019-11-07 00:53:33,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 621 transitions. [2019-11-07 00:53:33,878 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 621 transitions. Word has length 189 [2019-11-07 00:53:33,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:33,881 INFO L462 AbstractCegarLoop]: Abstraction has 466 states and 621 transitions. [2019-11-07 00:53:33,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:53:33,881 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 621 transitions. [2019-11-07 00:53:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-11-07 00:53:33,887 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:33,887 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:33,887 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:33,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:33,888 INFO L82 PathProgramCache]: Analyzing trace with hash 658853087, now seen corresponding path program 1 times [2019-11-07 00:53:33,888 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:33,888 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982397006] [2019-11-07 00:53:33,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:34,141 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:34,141 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982397006] [2019-11-07 00:53:34,142 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:34,142 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:34,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032427576] [2019-11-07 00:53:34,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:34,145 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:34,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:34,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:34,154 INFO L87 Difference]: Start difference. First operand 466 states and 621 transitions. Second operand 3 states. [2019-11-07 00:53:34,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:34,213 INFO L93 Difference]: Finished difference Result 714 states and 936 transitions. [2019-11-07 00:53:34,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:34,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-11-07 00:53:34,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:34,219 INFO L225 Difference]: With dead ends: 714 [2019-11-07 00:53:34,219 INFO L226 Difference]: Without dead ends: 469 [2019-11-07 00:53:34,224 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:34,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2019-11-07 00:53:34,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 468. [2019-11-07 00:53:34,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2019-11-07 00:53:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 623 transitions. [2019-11-07 00:53:34,278 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 623 transitions. Word has length 190 [2019-11-07 00:53:34,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:34,279 INFO L462 AbstractCegarLoop]: Abstraction has 468 states and 623 transitions. [2019-11-07 00:53:34,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:34,279 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 623 transitions. [2019-11-07 00:53:34,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-11-07 00:53:34,283 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:34,283 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:34,284 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:34,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:34,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1973832491, now seen corresponding path program 1 times [2019-11-07 00:53:34,284 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:34,285 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453633707] [2019-11-07 00:53:34,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:34,504 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453633707] [2019-11-07 00:53:34,504 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:34,504 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:34,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779398528] [2019-11-07 00:53:34,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:34,510 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:34,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:34,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:34,511 INFO L87 Difference]: Start difference. First operand 468 states and 623 transitions. Second operand 3 states. [2019-11-07 00:53:34,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:34,569 INFO L93 Difference]: Finished difference Result 910 states and 1241 transitions. [2019-11-07 00:53:34,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:34,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-11-07 00:53:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:34,580 INFO L225 Difference]: With dead ends: 910 [2019-11-07 00:53:34,580 INFO L226 Difference]: Without dead ends: 507 [2019-11-07 00:53:34,583 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:34,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2019-11-07 00:53:34,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 506. [2019-11-07 00:53:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2019-11-07 00:53:34,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 689 transitions. [2019-11-07 00:53:34,630 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 689 transitions. Word has length 196 [2019-11-07 00:53:34,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:34,634 INFO L462 AbstractCegarLoop]: Abstraction has 506 states and 689 transitions. [2019-11-07 00:53:34,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:34,634 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 689 transitions. [2019-11-07 00:53:34,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-11-07 00:53:34,649 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:34,650 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:34,650 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:34,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:34,651 INFO L82 PathProgramCache]: Analyzing trace with hash 682247667, now seen corresponding path program 1 times [2019-11-07 00:53:34,651 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:34,651 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307194343] [2019-11-07 00:53:34,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:35,107 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:35,107 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307194343] [2019-11-07 00:53:35,107 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:35,109 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:53:35,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690701910] [2019-11-07 00:53:35,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:53:35,111 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:35,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:53:35,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:53:35,111 INFO L87 Difference]: Start difference. First operand 506 states and 689 transitions. Second operand 11 states. [2019-11-07 00:53:39,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:39,377 INFO L93 Difference]: Finished difference Result 2349 states and 3179 transitions. [2019-11-07 00:53:39,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-11-07 00:53:39,378 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 197 [2019-11-07 00:53:39,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:39,394 INFO L225 Difference]: With dead ends: 2349 [2019-11-07 00:53:39,395 INFO L226 Difference]: Without dead ends: 1857 [2019-11-07 00:53:39,398 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-11-07 00:53:39,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2019-11-07 00:53:39,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1842. [2019-11-07 00:53:39,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1842 states. [2019-11-07 00:53:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2431 transitions. [2019-11-07 00:53:39,492 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2431 transitions. Word has length 197 [2019-11-07 00:53:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:39,493 INFO L462 AbstractCegarLoop]: Abstraction has 1842 states and 2431 transitions. [2019-11-07 00:53:39,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:53:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2431 transitions. [2019-11-07 00:53:39,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-11-07 00:53:39,497 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:39,497 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:39,498 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:39,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:39,498 INFO L82 PathProgramCache]: Analyzing trace with hash 812844325, now seen corresponding path program 1 times [2019-11-07 00:53:39,498 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:39,498 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335669620] [2019-11-07 00:53:39,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:39,844 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335669620] [2019-11-07 00:53:39,844 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:39,845 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-11-07 00:53:39,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515421638] [2019-11-07 00:53:39,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-07 00:53:39,845 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:39,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-07 00:53:39,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-11-07 00:53:39,846 INFO L87 Difference]: Start difference. First operand 1842 states and 2431 transitions. Second operand 18 states. [2019-11-07 00:53:40,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:40,307 INFO L93 Difference]: Finished difference Result 3168 states and 4180 transitions. [2019-11-07 00:53:40,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-07 00:53:40,307 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 198 [2019-11-07 00:53:40,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:40,316 INFO L225 Difference]: With dead ends: 3168 [2019-11-07 00:53:40,317 INFO L226 Difference]: Without dead ends: 1515 [2019-11-07 00:53:40,322 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:53:40,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2019-11-07 00:53:40,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1475. [2019-11-07 00:53:40,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1475 states. [2019-11-07 00:53:40,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1940 transitions. [2019-11-07 00:53:40,409 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1940 transitions. Word has length 198 [2019-11-07 00:53:40,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:40,411 INFO L462 AbstractCegarLoop]: Abstraction has 1475 states and 1940 transitions. [2019-11-07 00:53:40,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-07 00:53:40,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1940 transitions. [2019-11-07 00:53:40,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-11-07 00:53:40,418 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:40,419 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:40,419 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:40,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:40,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1170622860, now seen corresponding path program 1 times [2019-11-07 00:53:40,420 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:40,420 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126826974] [2019-11-07 00:53:40,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:40,663 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:40,664 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126826974] [2019-11-07 00:53:40,665 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:40,665 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:53:40,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194434471] [2019-11-07 00:53:40,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:53:40,666 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:40,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:53:40,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:53:40,667 INFO L87 Difference]: Start difference. First operand 1475 states and 1940 transitions. Second operand 6 states. [2019-11-07 00:53:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:41,413 INFO L93 Difference]: Finished difference Result 4087 states and 5367 transitions. [2019-11-07 00:53:41,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:53:41,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2019-11-07 00:53:41,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:41,458 INFO L225 Difference]: With dead ends: 4087 [2019-11-07 00:53:41,458 INFO L226 Difference]: Without dead ends: 2941 [2019-11-07 00:53:41,466 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:53:41,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2019-11-07 00:53:41,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2870. [2019-11-07 00:53:41,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2870 states. [2019-11-07 00:53:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 3802 transitions. [2019-11-07 00:53:41,669 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 3802 transitions. Word has length 207 [2019-11-07 00:53:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:41,669 INFO L462 AbstractCegarLoop]: Abstraction has 2870 states and 3802 transitions. [2019-11-07 00:53:41,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:53:41,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 3802 transitions. [2019-11-07 00:53:41,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-11-07 00:53:41,675 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:41,676 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:41,676 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:41,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:41,676 INFO L82 PathProgramCache]: Analyzing trace with hash 783825131, now seen corresponding path program 1 times [2019-11-07 00:53:41,676 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:41,677 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833439061] [2019-11-07 00:53:41,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:41,894 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:41,895 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833439061] [2019-11-07 00:53:41,895 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:41,895 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:53:41,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639535710] [2019-11-07 00:53:41,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:53:41,896 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:41,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:53:41,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:53:41,897 INFO L87 Difference]: Start difference. First operand 2870 states and 3802 transitions. Second operand 5 states. [2019-11-07 00:53:43,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:43,131 INFO L93 Difference]: Finished difference Result 10315 states and 13691 transitions. [2019-11-07 00:53:43,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:53:43,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2019-11-07 00:53:43,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:43,178 INFO L225 Difference]: With dead ends: 10315 [2019-11-07 00:53:43,178 INFO L226 Difference]: Without dead ends: 8034 [2019-11-07 00:53:43,189 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:53:43,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8034 states. [2019-11-07 00:53:43,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8034 to 7898. [2019-11-07 00:53:43,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7898 states. [2019-11-07 00:53:43,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7898 states to 7898 states and 10496 transitions. [2019-11-07 00:53:43,558 INFO L78 Accepts]: Start accepts. Automaton has 7898 states and 10496 transitions. Word has length 208 [2019-11-07 00:53:43,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:43,559 INFO L462 AbstractCegarLoop]: Abstraction has 7898 states and 10496 transitions. [2019-11-07 00:53:43,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:53:43,559 INFO L276 IsEmpty]: Start isEmpty. Operand 7898 states and 10496 transitions. [2019-11-07 00:53:43,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-11-07 00:53:43,568 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:43,568 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:43,569 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:43,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:43,569 INFO L82 PathProgramCache]: Analyzing trace with hash 197049012, now seen corresponding path program 1 times [2019-11-07 00:53:43,570 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:43,570 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682890144] [2019-11-07 00:53:43,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:43,777 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:43,777 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682890144] [2019-11-07 00:53:43,778 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:43,778 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:53:43,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567980727] [2019-11-07 00:53:43,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:53:43,779 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:43,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:53:43,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:53:43,780 INFO L87 Difference]: Start difference. First operand 7898 states and 10496 transitions. Second operand 11 states. [2019-11-07 00:53:44,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:44,457 INFO L93 Difference]: Finished difference Result 13963 states and 18296 transitions. [2019-11-07 00:53:44,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 00:53:44,458 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 208 [2019-11-07 00:53:44,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:44,508 INFO L225 Difference]: With dead ends: 13963 [2019-11-07 00:53:44,508 INFO L226 Difference]: Without dead ends: 6700 [2019-11-07 00:53:44,536 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:53:44,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6700 states. [2019-11-07 00:53:44,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6700 to 6496. [2019-11-07 00:53:44,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6496 states. [2019-11-07 00:53:44,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6496 states to 6496 states and 8632 transitions. [2019-11-07 00:53:44,884 INFO L78 Accepts]: Start accepts. Automaton has 6496 states and 8632 transitions. Word has length 208 [2019-11-07 00:53:44,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:44,885 INFO L462 AbstractCegarLoop]: Abstraction has 6496 states and 8632 transitions. [2019-11-07 00:53:44,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:53:44,885 INFO L276 IsEmpty]: Start isEmpty. Operand 6496 states and 8632 transitions. [2019-11-07 00:53:44,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-11-07 00:53:44,895 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:44,896 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:44,896 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:44,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:44,896 INFO L82 PathProgramCache]: Analyzing trace with hash -145871011, now seen corresponding path program 1 times [2019-11-07 00:53:44,897 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:44,897 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074986124] [2019-11-07 00:53:44,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:45,051 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074986124] [2019-11-07 00:53:45,051 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:45,052 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:45,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328201828] [2019-11-07 00:53:45,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:45,053 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:45,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:45,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:45,054 INFO L87 Difference]: Start difference. First operand 6496 states and 8632 transitions. Second operand 3 states. [2019-11-07 00:53:45,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:45,280 INFO L93 Difference]: Finished difference Result 13239 states and 17776 transitions. [2019-11-07 00:53:45,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:45,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-11-07 00:53:45,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:45,330 INFO L225 Difference]: With dead ends: 13239 [2019-11-07 00:53:45,331 INFO L226 Difference]: Without dead ends: 6808 [2019-11-07 00:53:45,351 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:45,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6808 states. [2019-11-07 00:53:45,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6808 to 6804. [2019-11-07 00:53:45,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6804 states. [2019-11-07 00:53:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6804 states to 6804 states and 9205 transitions. [2019-11-07 00:53:45,776 INFO L78 Accepts]: Start accepts. Automaton has 6804 states and 9205 transitions. Word has length 237 [2019-11-07 00:53:45,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:45,776 INFO L462 AbstractCegarLoop]: Abstraction has 6804 states and 9205 transitions. [2019-11-07 00:53:45,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:45,777 INFO L276 IsEmpty]: Start isEmpty. Operand 6804 states and 9205 transitions. [2019-11-07 00:53:45,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-11-07 00:53:45,790 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:45,790 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:45,791 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:45,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:45,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1202721781, now seen corresponding path program 1 times [2019-11-07 00:53:45,791 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:45,792 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647556559] [2019-11-07 00:53:45,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:45,957 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:45,958 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647556559] [2019-11-07 00:53:45,958 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:45,959 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:45,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772890098] [2019-11-07 00:53:45,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:45,961 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:45,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:45,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:45,961 INFO L87 Difference]: Start difference. First operand 6804 states and 9205 transitions. Second operand 3 states. [2019-11-07 00:53:46,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:46,179 INFO L93 Difference]: Finished difference Result 14123 states and 19431 transitions. [2019-11-07 00:53:46,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:46,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-11-07 00:53:46,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:46,216 INFO L225 Difference]: With dead ends: 14123 [2019-11-07 00:53:46,216 INFO L226 Difference]: Without dead ends: 7384 [2019-11-07 00:53:46,242 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:46,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7384 states. [2019-11-07 00:53:46,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7384 to 7380. [2019-11-07 00:53:46,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7380 states. [2019-11-07 00:53:46,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7380 states to 7380 states and 10279 transitions. [2019-11-07 00:53:46,604 INFO L78 Accepts]: Start accepts. Automaton has 7380 states and 10279 transitions. Word has length 238 [2019-11-07 00:53:46,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:46,606 INFO L462 AbstractCegarLoop]: Abstraction has 7380 states and 10279 transitions. [2019-11-07 00:53:46,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:46,607 INFO L276 IsEmpty]: Start isEmpty. Operand 7380 states and 10279 transitions. [2019-11-07 00:53:46,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-11-07 00:53:46,626 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:46,626 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:46,626 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:46,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:46,627 INFO L82 PathProgramCache]: Analyzing trace with hash -947840449, now seen corresponding path program 1 times [2019-11-07 00:53:46,627 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:46,627 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384999466] [2019-11-07 00:53:46,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:46,974 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384999466] [2019-11-07 00:53:46,975 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:46,975 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:53:46,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397949375] [2019-11-07 00:53:46,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:53:46,976 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:46,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:53:46,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:53:46,977 INFO L87 Difference]: Start difference. First operand 7380 states and 10279 transitions. Second operand 8 states. [2019-11-07 00:53:51,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:51,325 INFO L93 Difference]: Finished difference Result 22506 states and 32827 transitions. [2019-11-07 00:53:51,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 00:53:51,326 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 239 [2019-11-07 00:53:51,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:51,412 INFO L225 Difference]: With dead ends: 22506 [2019-11-07 00:53:51,413 INFO L226 Difference]: Without dead ends: 15191 [2019-11-07 00:53:51,443 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-11-07 00:53:51,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15191 states. [2019-11-07 00:53:51,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15191 to 9464. [2019-11-07 00:53:51,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9464 states. [2019-11-07 00:53:51,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9464 states to 9464 states and 14543 transitions. [2019-11-07 00:53:51,991 INFO L78 Accepts]: Start accepts. Automaton has 9464 states and 14543 transitions. Word has length 239 [2019-11-07 00:53:51,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:51,992 INFO L462 AbstractCegarLoop]: Abstraction has 9464 states and 14543 transitions. [2019-11-07 00:53:51,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 00:53:51,992 INFO L276 IsEmpty]: Start isEmpty. Operand 9464 states and 14543 transitions. [2019-11-07 00:53:52,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-11-07 00:53:52,127 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:52,127 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:52,127 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:52,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:52,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1058166649, now seen corresponding path program 1 times [2019-11-07 00:53:52,128 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:52,128 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390505860] [2019-11-07 00:53:52,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:52,341 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:52,342 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390505860] [2019-11-07 00:53:52,342 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:52,342 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:53:52,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319882109] [2019-11-07 00:53:52,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:53:52,343 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:52,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:53:52,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:53:52,344 INFO L87 Difference]: Start difference. First operand 9464 states and 14543 transitions. Second operand 8 states. [2019-11-07 00:53:56,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:56,940 INFO L93 Difference]: Finished difference Result 29294 states and 47867 transitions. [2019-11-07 00:53:56,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 00:53:56,940 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2019-11-07 00:53:56,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:57,044 INFO L225 Difference]: With dead ends: 29294 [2019-11-07 00:53:57,045 INFO L226 Difference]: Without dead ends: 19895 [2019-11-07 00:53:57,082 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-11-07 00:53:57,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19895 states. [2019-11-07 00:53:58,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19895 to 13752. [2019-11-07 00:53:58,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13752 states. [2019-11-07 00:53:58,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13752 states to 13752 states and 23911 transitions. [2019-11-07 00:53:58,825 INFO L78 Accepts]: Start accepts. Automaton has 13752 states and 23911 transitions. Word has length 240 [2019-11-07 00:53:58,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:58,826 INFO L462 AbstractCegarLoop]: Abstraction has 13752 states and 23911 transitions. [2019-11-07 00:53:58,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 00:53:58,826 INFO L276 IsEmpty]: Start isEmpty. Operand 13752 states and 23911 transitions. [2019-11-07 00:53:58,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-11-07 00:53:58,914 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:58,914 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:58,915 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:58,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:58,915 INFO L82 PathProgramCache]: Analyzing trace with hash 2079367527, now seen corresponding path program 1 times [2019-11-07 00:53:58,915 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:58,915 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10888302] [2019-11-07 00:53:58,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat