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_spec3_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:15:30,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:15:30,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:15:30,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:15:30,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:15:30,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:15:30,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:15:30,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:15:30,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:15:30,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:15:30,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:15:30,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:15:30,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:15:30,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:15:30,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:15:30,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:15:30,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:15:30,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:15:30,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:15:30,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:15:30,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:15:30,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:15:30,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:15:30,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:15:30,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:15:30,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:15:30,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:15:30,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:15:30,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:15:30,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:15:30,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:15:30,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:15:30,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:15:30,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:15:30,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:15:30,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:15:30,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:15:30,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:15:30,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:15:30,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:15:30,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:15:30,935 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:15:30,957 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:15:30,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:15:30,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:15:30,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:15:30,960 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:15:30,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:15:30,961 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:15:30,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:15:30,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:15:30,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:15:30,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:15:30,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:15:30,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:15:30,963 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:15:30,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:15:30,963 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:15:30,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:15:30,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:15:30,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:15:30,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:15:30,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:15:30,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:15:30,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:15:30,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:15:30,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:15:30,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:15:30,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:15:30,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:15:30,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:15:31,229 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:15:31,242 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:15:31,245 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:15:31,246 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:15:31,247 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:15:31,247 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product23.cil.c [2019-10-13 21:15:31,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6101ea9e8/ddefa684b0ec4f36a27972bd8d9409f7/FLAG9b7a33300 [2019-10-13 21:15:31,898 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:15:31,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product23.cil.c [2019-10-13 21:15:31,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6101ea9e8/ddefa684b0ec4f36a27972bd8d9409f7/FLAG9b7a33300 [2019-10-13 21:15:32,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6101ea9e8/ddefa684b0ec4f36a27972bd8d9409f7 [2019-10-13 21:15:32,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:15:32,199 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:15:32,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:15:32,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:15:32,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:15:32,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:15:32" (1/1) ... [2019-10-13 21:15:32,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3283d116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:32, skipping insertion in model container [2019-10-13 21:15:32,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:15:32" (1/1) ... [2019-10-13 21:15:32,215 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:15:32,294 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:15:33,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:15:33,093 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:15:33,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:15:33,361 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:15:33,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:33 WrapperNode [2019-10-13 21:15:33,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:15:33,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:15:33,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:15:33,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:15:33,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:33" (1/1) ... [2019-10-13 21:15:33,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:33" (1/1) ... [2019-10-13 21:15:33,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:33" (1/1) ... [2019-10-13 21:15:33,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:33" (1/1) ... [2019-10-13 21:15:33,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:33" (1/1) ... [2019-10-13 21:15:33,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:33" (1/1) ... [2019-10-13 21:15:33,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:33" (1/1) ... [2019-10-13 21:15:33,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:15:33,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:15:33,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:15:33,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:15:33,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:15:33,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:15:33,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:15:33,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:15:33,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:15:33,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:15:33,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:15:33,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:15:33,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:15:33,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:15:33,650 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:15:33,650 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:15:33,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:15:33,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:15:33,651 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:15:33,651 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:15:33,652 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:15:33,652 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:15:33,652 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:15:33,652 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:15:33,653 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:15:33,653 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:15:33,654 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:15:33,654 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:15:33,654 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:15:33,654 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:15:33,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:15:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:15:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:15:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:15:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:15:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:15:33,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:15:33,656 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:15:33,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:15:33,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:15:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:15:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:15:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:15:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:15:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:15:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:15:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:15:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:15:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:15:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:15:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:15:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:15:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:15:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:15:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:15:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:15:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:15:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:15:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:15:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:15:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:15:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:15:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:15:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:15:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:15:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:15:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:15:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:15:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:15:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 21:15:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 21:15:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:15:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:15:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:15:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:15:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:15:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-13 21:15:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:15:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:15:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:15:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:15:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:15:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:15:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:15:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:15:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:15:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:15:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:15:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:15:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:15:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:15:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:15:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:15:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:15:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:15:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:15:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:15:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:15:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:15:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:15:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:15:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:15:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:15:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:15:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:15:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:15:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:15:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:15:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:15:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:15:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:15:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:15:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:15:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:15:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:15:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:15:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:15:33,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:15:33,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:15:33,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:15:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:15:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:15:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:15:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:15:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:15:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:15:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:15:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:15:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:15:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:15:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:15:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:15:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:15:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:15:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:15:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:15:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:15:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:15:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:15:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:15:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:15:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:15:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:15:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:15:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:15:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:15:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:15:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:15:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:15:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:15:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:15:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:15:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:15:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:15:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:15:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:15:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:15:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:15:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:15:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:15:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:15:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:15:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:15:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:15:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:15:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:15:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:15:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:15:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:15:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:15:33,694 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:15:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:15:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:15:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:15:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:15:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:15:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:15:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:15:33,695 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:15:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:15:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:15:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:15:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:15:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:15:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:15:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:15:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:15:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:15:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:15:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:15:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:15:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:15:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:15:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:15:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:15:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:15:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:15:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:15:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:15:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:15:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:15:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:15:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:15:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:15:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:15:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:15:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:15:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:15:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:15:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:15:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:15:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:15:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:15:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:15:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:15:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 21:15:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 21:15:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:15:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:15:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:15:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:15:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:15:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:15:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:15:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:15:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:15:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:15:33,703 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:15:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:15:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:15:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:15:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:15:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:15:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:15:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-13 21:15:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:15:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:15:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:15:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:15:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:15:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:15:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:15:33,705 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:15:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:15:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:15:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:15:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:15:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:15:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:15:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:15:35,724 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:15:35,725 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:15:35,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:15:35 BoogieIcfgContainer [2019-10-13 21:15:35,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:15:35,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:15:35,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:15:35,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:15:35,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:15:32" (1/3) ... [2019-10-13 21:15:35,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e4aab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:15:35, skipping insertion in model container [2019-10-13 21:15:35,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:15:33" (2/3) ... [2019-10-13 21:15:35,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e4aab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:15:35, skipping insertion in model container [2019-10-13 21:15:35,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:15:35" (3/3) ... [2019-10-13 21:15:35,736 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product23.cil.c [2019-10-13 21:15:35,746 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:15:35,757 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:15:35,769 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:15:35,813 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:15:35,813 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:15:35,814 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:15:35,818 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:15:35,818 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:15:35,818 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:15:35,818 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:15:35,818 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:15:35,858 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states. [2019-10-13 21:15:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-13 21:15:35,893 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:35,895 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:15:35,899 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:35,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:35,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1102643353, now seen corresponding path program 1 times [2019-10-13 21:15:35,914 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:35,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360359423] [2019-10-13 21:15:35,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:35,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:35,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:36,621 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:15:36,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360359423] [2019-10-13 21:15:36,623 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:36,623 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:15:36,624 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145136768] [2019-10-13 21:15:36,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:15:36,632 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:36,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:15:36,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:15:36,649 INFO L87 Difference]: Start difference. First operand 587 states. Second operand 2 states. [2019-10-13 21:15:36,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:36,743 INFO L93 Difference]: Finished difference Result 816 states and 1110 transitions. [2019-10-13 21:15:36,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:15:36,745 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 179 [2019-10-13 21:15:36,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:36,767 INFO L225 Difference]: With dead ends: 816 [2019-10-13 21:15:36,768 INFO L226 Difference]: Without dead ends: 536 [2019-10-13 21:15:36,774 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:15:36,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-10-13 21:15:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-10-13 21:15:36,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-10-13 21:15:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 732 transitions. [2019-10-13 21:15:36,923 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 732 transitions. Word has length 179 [2019-10-13 21:15:36,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:36,925 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 732 transitions. [2019-10-13 21:15:36,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:15:36,925 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 732 transitions. [2019-10-13 21:15:36,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 21:15:36,930 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:36,930 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:15:36,931 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:36,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:36,931 INFO L82 PathProgramCache]: Analyzing trace with hash -2131097352, now seen corresponding path program 1 times [2019-10-13 21:15:36,931 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:36,932 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323615238] [2019-10-13 21:15:36,932 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:36,932 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:36,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:15:37,194 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323615238] [2019-10-13 21:15:37,194 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:37,194 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:37,194 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053969981] [2019-10-13 21:15:37,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:37,201 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:37,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:37,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:37,201 INFO L87 Difference]: Start difference. First operand 536 states and 732 transitions. Second operand 3 states. [2019-10-13 21:15:37,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:37,254 INFO L93 Difference]: Finished difference Result 799 states and 1072 transitions. [2019-10-13 21:15:37,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:37,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-13 21:15:37,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:37,262 INFO L225 Difference]: With dead ends: 799 [2019-10-13 21:15:37,262 INFO L226 Difference]: Without dead ends: 539 [2019-10-13 21:15:37,265 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:37,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-10-13 21:15:37,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 538. [2019-10-13 21:15:37,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-13 21:15:37,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 734 transitions. [2019-10-13 21:15:37,304 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 734 transitions. Word has length 180 [2019-10-13 21:15:37,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:37,307 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 734 transitions. [2019-10-13 21:15:37,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:37,307 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 734 transitions. [2019-10-13 21:15:37,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 21:15:37,313 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:37,314 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:15:37,314 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:37,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:37,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1330495496, now seen corresponding path program 1 times [2019-10-13 21:15:37,315 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:37,315 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527493065] [2019-10-13 21:15:37,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:37,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:37,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:37,557 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:15:37,558 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527493065] [2019-10-13 21:15:37,558 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:37,558 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:37,558 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937911696] [2019-10-13 21:15:37,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:37,563 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:37,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:37,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:37,564 INFO L87 Difference]: Start difference. First operand 538 states and 734 transitions. Second operand 3 states. [2019-10-13 21:15:37,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:37,632 INFO L93 Difference]: Finished difference Result 1054 states and 1469 transitions. [2019-10-13 21:15:37,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:37,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-13 21:15:37,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:37,644 INFO L225 Difference]: With dead ends: 1054 [2019-10-13 21:15:37,644 INFO L226 Difference]: Without dead ends: 581 [2019-10-13 21:15:37,648 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:37,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-13 21:15:37,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 580. [2019-10-13 21:15:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-13 21:15:37,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 806 transitions. [2019-10-13 21:15:37,706 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 806 transitions. Word has length 190 [2019-10-13 21:15:37,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:37,707 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 806 transitions. [2019-10-13 21:15:37,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:37,707 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 806 transitions. [2019-10-13 21:15:37,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:15:37,720 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:37,721 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:15:37,721 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:37,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:37,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1845814731, now seen corresponding path program 1 times [2019-10-13 21:15:37,722 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:37,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607918579] [2019-10-13 21:15:37,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:37,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:37,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:37,992 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:15:37,993 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607918579] [2019-10-13 21:15:37,993 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:37,993 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:37,994 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553394623] [2019-10-13 21:15:37,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:37,995 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:37,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:37,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:37,996 INFO L87 Difference]: Start difference. First operand 580 states and 806 transitions. Second operand 3 states. [2019-10-13 21:15:38,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:38,099 INFO L93 Difference]: Finished difference Result 1177 states and 1680 transitions. [2019-10-13 21:15:38,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:38,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2019-10-13 21:15:38,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:38,107 INFO L225 Difference]: With dead ends: 1177 [2019-10-13 21:15:38,108 INFO L226 Difference]: Without dead ends: 662 [2019-10-13 21:15:38,110 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:38,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2019-10-13 21:15:38,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 661. [2019-10-13 21:15:38,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2019-10-13 21:15:38,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 944 transitions. [2019-10-13 21:15:38,146 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 944 transitions. Word has length 191 [2019-10-13 21:15:38,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:38,147 INFO L462 AbstractCegarLoop]: Abstraction has 661 states and 944 transitions. [2019-10-13 21:15:38,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:38,147 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 944 transitions. [2019-10-13 21:15:38,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:15:38,152 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:38,152 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:15:38,153 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:38,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:38,153 INFO L82 PathProgramCache]: Analyzing trace with hash 436751368, now seen corresponding path program 1 times [2019-10-13 21:15:38,153 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:38,155 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103071029] [2019-10-13 21:15:38,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:38,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:38,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:38,338 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:15:38,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103071029] [2019-10-13 21:15:38,340 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:38,340 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:38,340 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314572559] [2019-10-13 21:15:38,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:38,341 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:38,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:38,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:38,342 INFO L87 Difference]: Start difference. First operand 661 states and 944 transitions. Second operand 3 states. [2019-10-13 21:15:38,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:38,395 INFO L93 Difference]: Finished difference Result 1414 states and 2084 transitions. [2019-10-13 21:15:38,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:38,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-13 21:15:38,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:38,403 INFO L225 Difference]: With dead ends: 1414 [2019-10-13 21:15:38,403 INFO L226 Difference]: Without dead ends: 818 [2019-10-13 21:15:38,407 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:38,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2019-10-13 21:15:38,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 817. [2019-10-13 21:15:38,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2019-10-13 21:15:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1208 transitions. [2019-10-13 21:15:38,472 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1208 transitions. Word has length 192 [2019-10-13 21:15:38,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:38,472 INFO L462 AbstractCegarLoop]: Abstraction has 817 states and 1208 transitions. [2019-10-13 21:15:38,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:38,473 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1208 transitions. [2019-10-13 21:15:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-13 21:15:38,481 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:38,481 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:15:38,481 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:38,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:38,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1985987125, now seen corresponding path program 1 times [2019-10-13 21:15:38,482 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:38,482 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485446481] [2019-10-13 21:15:38,483 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:38,483 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:38,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:38,796 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:15:38,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485446481] [2019-10-13 21:15:38,797 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:38,798 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:15:38,798 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571412377] [2019-10-13 21:15:38,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:15:38,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:38,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:15:38,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:38,800 INFO L87 Difference]: Start difference. First operand 817 states and 1208 transitions. Second operand 3 states. [2019-10-13 21:15:38,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:38,851 INFO L93 Difference]: Finished difference Result 1870 states and 2856 transitions. [2019-10-13 21:15:38,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:15:38,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-10-13 21:15:38,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:38,859 INFO L225 Difference]: With dead ends: 1870 [2019-10-13 21:15:38,859 INFO L226 Difference]: Without dead ends: 1118 [2019-10-13 21:15:38,863 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:15:38,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2019-10-13 21:15:38,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1117. [2019-10-13 21:15:38,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1117 states. [2019-10-13 21:15:38,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1712 transitions. [2019-10-13 21:15:38,913 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1712 transitions. Word has length 193 [2019-10-13 21:15:38,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:38,915 INFO L462 AbstractCegarLoop]: Abstraction has 1117 states and 1712 transitions. [2019-10-13 21:15:38,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:15:38,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1712 transitions. [2019-10-13 21:15:38,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:15:38,922 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:38,922 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:15:38,922 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:38,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:38,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1576978066, now seen corresponding path program 1 times [2019-10-13 21:15:38,923 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:38,923 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041313708] [2019-10-13 21:15:38,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:38,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:38,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:39,218 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:15:39,218 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041313708] [2019-10-13 21:15:39,219 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:39,219 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 21:15:39,219 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432764142] [2019-10-13 21:15:39,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 21:15:39,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:39,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 21:15:39,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:15:39,221 INFO L87 Difference]: Start difference. First operand 1117 states and 1712 transitions. Second operand 12 states. [2019-10-13 21:15:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:50,478 INFO L93 Difference]: Finished difference Result 3285 states and 4713 transitions. [2019-10-13 21:15:50,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-13 21:15:50,478 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 196 [2019-10-13 21:15:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:50,500 INFO L225 Difference]: With dead ends: 3285 [2019-10-13 21:15:50,500 INFO L226 Difference]: Without dead ends: 3026 [2019-10-13 21:15:50,505 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=377, Invalid=1515, Unknown=0, NotChecked=0, Total=1892 [2019-10-13 21:15:50,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2019-10-13 21:15:50,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 3001. [2019-10-13 21:15:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3001 states. [2019-10-13 21:15:50,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 4253 transitions. [2019-10-13 21:15:50,659 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 4253 transitions. Word has length 196 [2019-10-13 21:15:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:50,660 INFO L462 AbstractCegarLoop]: Abstraction has 3001 states and 4253 transitions. [2019-10-13 21:15:50,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 21:15:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 4253 transitions. [2019-10-13 21:15:50,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:15:50,672 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:50,673 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:15:50,673 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:50,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:50,674 INFO L82 PathProgramCache]: Analyzing trace with hash -886808623, now seen corresponding path program 1 times [2019-10-13 21:15:50,674 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:50,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265378504] [2019-10-13 21:15:50,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:50,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:50,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:15:51,038 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265378504] [2019-10-13 21:15:51,038 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:15:51,038 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:15:51,038 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416025292] [2019-10-13 21:15:51,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:15:51,039 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:51,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:15:51,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:15:51,040 INFO L87 Difference]: Start difference. First operand 3001 states and 4253 transitions. Second operand 18 states. [2019-10-13 21:15:51,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:51,550 INFO L93 Difference]: Finished difference Result 4923 states and 6907 transitions. [2019-10-13 21:15:51,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:15:51,551 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 197 [2019-10-13 21:15:51,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:51,568 INFO L225 Difference]: With dead ends: 4923 [2019-10-13 21:15:51,568 INFO L226 Difference]: Without dead ends: 2762 [2019-10-13 21:15:51,576 INFO L600 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 [2019-10-13 21:15:51,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2019-10-13 21:15:51,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2760. [2019-10-13 21:15:51,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2760 states. [2019-10-13 21:15:51,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3926 transitions. [2019-10-13 21:15:51,701 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3926 transitions. Word has length 197 [2019-10-13 21:15:51,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:51,704 INFO L462 AbstractCegarLoop]: Abstraction has 2760 states and 3926 transitions. [2019-10-13 21:15:51,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:15:51,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3926 transitions. [2019-10-13 21:15:51,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-13 21:15:51,712 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:51,712 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:15:51,712 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:51,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:51,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1141365715, now seen corresponding path program 1 times [2019-10-13 21:15:51,713 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:51,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989587684] [2019-10-13 21:15:51,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:51,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:51,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:54,035 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:15:54,036 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989587684] [2019-10-13 21:15:54,036 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570816471] [2019-10-13 21:15:54,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:15:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:15:54,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 2936 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:15:54,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:15:55,121 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:15:55,121 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:15:55,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:15:55,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:15:55,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:15:56,033 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:15:56,033 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:15:56,033 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [55, 9] total 67 [2019-10-13 21:15:56,034 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804970862] [2019-10-13 21:15:56,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:15:56,035 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:15:56,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:15:56,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=4248, Unknown=0, NotChecked=0, Total=4422 [2019-10-13 21:15:56,037 INFO L87 Difference]: Start difference. First operand 2760 states and 3926 transitions. Second operand 9 states. [2019-10-13 21:15:58,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:15:58,013 INFO L93 Difference]: Finished difference Result 5498 states and 7832 transitions. [2019-10-13 21:15:58,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:15:58,014 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 206 [2019-10-13 21:15:58,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:15:58,030 INFO L225 Difference]: With dead ends: 5498 [2019-10-13 21:15:58,030 INFO L226 Difference]: Without dead ends: 2774 [2019-10-13 21:15:58,042 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 400 SyntacticMatches, 7 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=201, Invalid=4629, Unknown=0, NotChecked=0, Total=4830 [2019-10-13 21:15:58,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2019-10-13 21:15:58,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2774. [2019-10-13 21:15:58,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2774 states. [2019-10-13 21:15:58,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3944 transitions. [2019-10-13 21:15:58,192 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3944 transitions. Word has length 206 [2019-10-13 21:15:58,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:15:58,193 INFO L462 AbstractCegarLoop]: Abstraction has 2774 states and 3944 transitions. [2019-10-13 21:15:58,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:15:58,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3944 transitions. [2019-10-13 21:15:58,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:15:58,209 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:15:58,209 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-13 21:15:58,421 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:15:58,421 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:15:58,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:15:58,422 INFO L82 PathProgramCache]: Analyzing trace with hash 715410806, now seen corresponding path program 1 times [2019-10-13 21:15:58,422 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:15:58,424 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016462046] [2019-10-13 21:15:58,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:58,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:15:58,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:15:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:00,491 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 21:16:00,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016462046] [2019-10-13 21:16:00,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186307640] [2019-10-13 21:16:00,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:16:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:16:01,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 2937 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:16:01,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:16:01,291 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:16:01,291 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:16:01,706 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:16:01,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:16:01,885 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:16:01,886 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:16:01,886 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [53, 7] total 61 [2019-10-13 21:16:01,886 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293034549] [2019-10-13 21:16:01,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:16:01,887 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:16:01,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:16:01,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=3511, Unknown=0, NotChecked=0, Total=3660 [2019-10-13 21:16:01,889 INFO L87 Difference]: Start difference. First operand 2774 states and 3944 transitions. Second operand 7 states. [2019-10-13 21:16:03,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:16:03,152 INFO L93 Difference]: Finished difference Result 5499 states and 7842 transitions. [2019-10-13 21:16:03,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:16:03,153 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 207 [2019-10-13 21:16:03,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:16:03,166 INFO L225 Difference]: With dead ends: 5499 [2019-10-13 21:16:03,166 INFO L226 Difference]: Without dead ends: 2776 [2019-10-13 21:16:03,177 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 407 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=167, Invalid=3739, Unknown=0, NotChecked=0, Total=3906 [2019-10-13 21:16:03,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2019-10-13 21:16:03,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2776. [2019-10-13 21:16:03,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2776 states. [2019-10-13 21:16:03,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 3947 transitions. [2019-10-13 21:16:03,283 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 3947 transitions. Word has length 207 [2019-10-13 21:16:03,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:16:03,283 INFO L462 AbstractCegarLoop]: Abstraction has 2776 states and 3947 transitions. [2019-10-13 21:16:03,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:16:03,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 3947 transitions. [2019-10-13 21:16:03,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 21:16:03,296 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:16:03,296 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:16:03,504 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:16:03,508 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:16:03,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:16:03,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1628390198, now seen corresponding path program 1 times [2019-10-13 21:16:03,508 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:16:03,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729792626] [2019-10-13 21:16:03,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:03,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:16:03,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:16:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat