java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:08,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:08,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:08,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:08,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:08,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:08,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:08,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:08,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:08,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:08,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:08,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:08,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:08,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:08,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:08,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:08,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:08,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:08,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:08,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:08,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:08,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:08,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:08,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:08,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:08,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:08,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:08,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:08,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:08,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:08,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:08,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:08,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:08,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:08,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:08,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:08,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:08,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:08,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:08,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:08,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:08,121 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:08,140 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:08,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:08,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:08,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:08,143 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:08,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:08,144 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:08,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:08,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:08,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:08,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:08,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:08,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:08,146 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:08,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:08,147 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:08,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:08,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:08,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:08,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:08,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:08,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:08,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:08,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:08,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:08,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:08,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:08,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:08,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:17:08,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:08,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:08,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:08,550 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:08,551 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:08,551 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product28.cil.c [2019-10-13 21:17:08,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042e4d2ea/28188d7979eb4c24b5122a6b192bac38/FLAGead021a88 [2019-10-13 21:17:09,292 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:09,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product28.cil.c [2019-10-13 21:17:09,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042e4d2ea/28188d7979eb4c24b5122a6b192bac38/FLAGead021a88 [2019-10-13 21:17:09,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042e4d2ea/28188d7979eb4c24b5122a6b192bac38 [2019-10-13 21:17:09,466 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:09,468 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:09,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:09,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:09,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:09,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:09" (1/1) ... [2019-10-13 21:17:09,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182f03c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:09, skipping insertion in model container [2019-10-13 21:17:09,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:09" (1/1) ... [2019-10-13 21:17:09,489 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:09,578 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:10,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:10,394 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:10,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:10,757 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:10,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:10 WrapperNode [2019-10-13 21:17:10,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:10,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:10,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:10,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:10,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:10" (1/1) ... [2019-10-13 21:17:10,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:10" (1/1) ... [2019-10-13 21:17:10,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:10" (1/1) ... [2019-10-13 21:17:10,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:10" (1/1) ... [2019-10-13 21:17:10,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:10" (1/1) ... [2019-10-13 21:17:10,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:10" (1/1) ... [2019-10-13 21:17:10,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:10" (1/1) ... [2019-10-13 21:17:10,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:10,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:10,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:10,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:10,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:11,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:11,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:11,057 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:11,057 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:11,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:11,059 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:11,060 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:11,060 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:11,062 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:11,063 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:11,063 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:11,063 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:11,064 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:11,064 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:11,065 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:11,065 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:11,065 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:11,068 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:11,068 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:11,071 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:11,071 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:11,071 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:11,072 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:11,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:11,072 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:11,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:11,072 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 21:17:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:17:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:11,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:11,086 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:11,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:11,086 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:11,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:11,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:11,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:11,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:11,087 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:11,087 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:11,088 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:11,088 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:11,088 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:11,088 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:11,088 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:11,088 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:11,092 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:11,092 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:11,092 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:11,092 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:11,092 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:11,092 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:11,094 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:11,094 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:11,094 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:11,094 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:11,094 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:11,094 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:11,094 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 21:17:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:17:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:13,148 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:13,148 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:13,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:13 BoogieIcfgContainer [2019-10-13 21:17:13,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:13,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:13,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:13,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:13,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:09" (1/3) ... [2019-10-13 21:17:13,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b041cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:13, skipping insertion in model container [2019-10-13 21:17:13,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:10" (2/3) ... [2019-10-13 21:17:13,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b041cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:13, skipping insertion in model container [2019-10-13 21:17:13,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:13" (3/3) ... [2019-10-13 21:17:13,160 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product28.cil.c [2019-10-13 21:17:13,173 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:13,187 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:13,199 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:13,245 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:13,245 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:13,246 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:13,246 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:13,246 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:13,246 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:13,246 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:13,246 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:13,294 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states. [2019-10-13 21:17:13,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 21:17:13,333 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:13,337 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:13,340 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:13,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:13,350 INFO L82 PathProgramCache]: Analyzing trace with hash 706098665, now seen corresponding path program 1 times [2019-10-13 21:17:13,371 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:13,371 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762349810] [2019-10-13 21:17:13,372 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,372 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:14,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762349810] [2019-10-13 21:17:14,132 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:14,132 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:14,133 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074030876] [2019-10-13 21:17:14,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:14,140 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:14,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:14,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:14,159 INFO L87 Difference]: Start difference. First operand 517 states. Second operand 2 states. [2019-10-13 21:17:14,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:14,265 INFO L93 Difference]: Finished difference Result 731 states and 969 transitions. [2019-10-13 21:17:14,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:14,269 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-10-13 21:17:14,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:14,315 INFO L225 Difference]: With dead ends: 731 [2019-10-13 21:17:14,315 INFO L226 Difference]: Without dead ends: 466 [2019-10-13 21:17:14,325 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 21:17:14,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2019-10-13 21:17:14,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2019-10-13 21:17:14,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2019-10-13 21:17:14,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 621 transitions. [2019-10-13 21:17:14,460 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 621 transitions. Word has length 189 [2019-10-13 21:17:14,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:14,462 INFO L462 AbstractCegarLoop]: Abstraction has 466 states and 621 transitions. [2019-10-13 21:17:14,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 621 transitions. [2019-10-13 21:17:14,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 21:17:14,468 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:14,469 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:14,469 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:14,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:14,469 INFO L82 PathProgramCache]: Analyzing trace with hash 658853087, now seen corresponding path program 1 times [2019-10-13 21:17:14,470 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:14,470 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169865277] [2019-10-13 21:17:14,470 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:14,470 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:14,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:14,684 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169865277] [2019-10-13 21:17:14,684 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:14,684 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:14,684 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903831028] [2019-10-13 21:17:14,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:14,687 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:14,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:14,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:14,688 INFO L87 Difference]: Start difference. First operand 466 states and 621 transitions. Second operand 3 states. [2019-10-13 21:17:14,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:14,743 INFO L93 Difference]: Finished difference Result 714 states and 936 transitions. [2019-10-13 21:17:14,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:14,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-13 21:17:14,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:14,749 INFO L225 Difference]: With dead ends: 714 [2019-10-13 21:17:14,749 INFO L226 Difference]: Without dead ends: 469 [2019-10-13 21:17:14,751 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:14,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2019-10-13 21:17:14,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 468. [2019-10-13 21:17:14,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2019-10-13 21:17:14,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 623 transitions. [2019-10-13 21:17:14,787 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 623 transitions. Word has length 190 [2019-10-13 21:17:14,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:14,789 INFO L462 AbstractCegarLoop]: Abstraction has 468 states and 623 transitions. [2019-10-13 21:17:14,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 623 transitions. [2019-10-13 21:17:14,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:17:14,795 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:14,796 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:14,797 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:14,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:14,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1973832491, now seen corresponding path program 1 times [2019-10-13 21:17:14,798 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:14,798 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900333973] [2019-10-13 21:17:14,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:14,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:14,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:15,140 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:15,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900333973] [2019-10-13 21:17:15,141 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:15,141 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:15,141 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274200328] [2019-10-13 21:17:15,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:15,145 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:15,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:15,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:15,146 INFO L87 Difference]: Start difference. First operand 468 states and 623 transitions. Second operand 3 states. [2019-10-13 21:17:15,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:15,221 INFO L93 Difference]: Finished difference Result 910 states and 1241 transitions. [2019-10-13 21:17:15,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:15,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-13 21:17:15,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:15,233 INFO L225 Difference]: With dead ends: 910 [2019-10-13 21:17:15,233 INFO L226 Difference]: Without dead ends: 507 [2019-10-13 21:17:15,236 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:15,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2019-10-13 21:17:15,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 506. [2019-10-13 21:17:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2019-10-13 21:17:15,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 689 transitions. [2019-10-13 21:17:15,290 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 689 transitions. Word has length 196 [2019-10-13 21:17:15,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:15,291 INFO L462 AbstractCegarLoop]: Abstraction has 506 states and 689 transitions. [2019-10-13 21:17:15,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:15,291 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 689 transitions. [2019-10-13 21:17:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:17:15,306 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:15,307 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:15,307 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:15,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:15,308 INFO L82 PathProgramCache]: Analyzing trace with hash 682247667, now seen corresponding path program 1 times [2019-10-13 21:17:15,308 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:15,309 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727356289] [2019-10-13 21:17:15,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:15,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:15,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:15,800 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:15,801 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727356289] [2019-10-13 21:17:15,801 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:15,801 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:15,802 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182774287] [2019-10-13 21:17:15,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:15,804 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:15,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:15,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:15,805 INFO L87 Difference]: Start difference. First operand 506 states and 689 transitions. Second operand 11 states. [2019-10-13 21:17:20,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:20,307 INFO L93 Difference]: Finished difference Result 2349 states and 3179 transitions. [2019-10-13 21:17:20,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-13 21:17:20,308 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 197 [2019-10-13 21:17:20,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:20,323 INFO L225 Difference]: With dead ends: 2349 [2019-10-13 21:17:20,323 INFO L226 Difference]: Without dead ends: 1857 [2019-10-13 21:17:20,327 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-13 21:17:20,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2019-10-13 21:17:20,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1842. [2019-10-13 21:17:20,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1842 states. [2019-10-13 21:17:20,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2431 transitions. [2019-10-13 21:17:20,453 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2431 transitions. Word has length 197 [2019-10-13 21:17:20,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:20,454 INFO L462 AbstractCegarLoop]: Abstraction has 1842 states and 2431 transitions. [2019-10-13 21:17:20,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:20,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2431 transitions. [2019-10-13 21:17:20,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:17:20,459 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:20,459 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:20,459 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:20,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:20,460 INFO L82 PathProgramCache]: Analyzing trace with hash 812844325, now seen corresponding path program 1 times [2019-10-13 21:17:20,460 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:20,461 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477821889] [2019-10-13 21:17:20,461 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,461 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:20,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477821889] [2019-10-13 21:17:20,870 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:20,871 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:17:20,871 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508952864] [2019-10-13 21:17:20,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:17:20,872 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:20,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:17:20,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:17:20,873 INFO L87 Difference]: Start difference. First operand 1842 states and 2431 transitions. Second operand 18 states. [2019-10-13 21:17:21,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:21,362 INFO L93 Difference]: Finished difference Result 3168 states and 4180 transitions. [2019-10-13 21:17:21,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:17:21,363 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 198 [2019-10-13 21:17:21,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:21,372 INFO L225 Difference]: With dead ends: 3168 [2019-10-13 21:17:21,372 INFO L226 Difference]: Without dead ends: 1515 [2019-10-13 21:17:21,378 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 21:17:21,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2019-10-13 21:17:21,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1475. [2019-10-13 21:17:21,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1475 states. [2019-10-13 21:17:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1940 transitions. [2019-10-13 21:17:21,444 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1940 transitions. Word has length 198 [2019-10-13 21:17:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:21,444 INFO L462 AbstractCegarLoop]: Abstraction has 1475 states and 1940 transitions. [2019-10-13 21:17:21,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:17:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1940 transitions. [2019-10-13 21:17:21,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:17:21,449 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:21,449 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:21,449 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:21,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:21,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1170622860, now seen corresponding path program 1 times [2019-10-13 21:17:21,450 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:21,450 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524039166] [2019-10-13 21:17:21,450 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,451 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:21,623 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:21,624 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524039166] [2019-10-13 21:17:21,624 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:21,624 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:21,624 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478174928] [2019-10-13 21:17:21,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:21,625 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:21,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:21,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:21,626 INFO L87 Difference]: Start difference. First operand 1475 states and 1940 transitions. Second operand 6 states. [2019-10-13 21:17:22,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:22,303 INFO L93 Difference]: Finished difference Result 4087 states and 5367 transitions. [2019-10-13 21:17:22,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:22,304 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2019-10-13 21:17:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:22,328 INFO L225 Difference]: With dead ends: 4087 [2019-10-13 21:17:22,329 INFO L226 Difference]: Without dead ends: 2941 [2019-10-13 21:17:22,336 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:17:22,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2019-10-13 21:17:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2870. [2019-10-13 21:17:22,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2870 states. [2019-10-13 21:17:22,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 3802 transitions. [2019-10-13 21:17:22,530 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 3802 transitions. Word has length 207 [2019-10-13 21:17:22,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:22,531 INFO L462 AbstractCegarLoop]: Abstraction has 2870 states and 3802 transitions. [2019-10-13 21:17:22,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:22,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 3802 transitions. [2019-10-13 21:17:22,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 21:17:22,537 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:22,537 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:22,538 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:22,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:22,538 INFO L82 PathProgramCache]: Analyzing trace with hash 783825131, now seen corresponding path program 1 times [2019-10-13 21:17:22,539 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:22,539 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991020482] [2019-10-13 21:17:22,539 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,539 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:22,867 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:22,867 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991020482] [2019-10-13 21:17:22,868 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:22,868 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:22,868 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214467248] [2019-10-13 21:17:22,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:22,869 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:22,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:22,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:22,870 INFO L87 Difference]: Start difference. First operand 2870 states and 3802 transitions. Second operand 5 states. [2019-10-13 21:17:24,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:24,220 INFO L93 Difference]: Finished difference Result 10315 states and 13691 transitions. [2019-10-13 21:17:24,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:24,220 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2019-10-13 21:17:24,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:24,271 INFO L225 Difference]: With dead ends: 10315 [2019-10-13 21:17:24,272 INFO L226 Difference]: Without dead ends: 8034 [2019-10-13 21:17:24,284 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:17:24,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8034 states. [2019-10-13 21:17:24,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8034 to 7898. [2019-10-13 21:17:24,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7898 states. [2019-10-13 21:17:24,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7898 states to 7898 states and 10496 transitions. [2019-10-13 21:17:24,727 INFO L78 Accepts]: Start accepts. Automaton has 7898 states and 10496 transitions. Word has length 208 [2019-10-13 21:17:24,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:24,728 INFO L462 AbstractCegarLoop]: Abstraction has 7898 states and 10496 transitions. [2019-10-13 21:17:24,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:17:24,728 INFO L276 IsEmpty]: Start isEmpty. Operand 7898 states and 10496 transitions. [2019-10-13 21:17:24,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 21:17:24,737 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:24,738 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:24,738 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:24,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:24,738 INFO L82 PathProgramCache]: Analyzing trace with hash 197049012, now seen corresponding path program 1 times [2019-10-13 21:17:24,739 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:24,739 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267920285] [2019-10-13 21:17:24,739 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,739 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:24,978 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267920285] [2019-10-13 21:17:24,978 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:24,978 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:24,978 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433919831] [2019-10-13 21:17:24,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:24,979 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:24,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:24,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:24,980 INFO L87 Difference]: Start difference. First operand 7898 states and 10496 transitions. Second operand 11 states. [2019-10-13 21:17:25,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:25,640 INFO L93 Difference]: Finished difference Result 13963 states and 18296 transitions. [2019-10-13 21:17:25,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:17:25,641 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 208 [2019-10-13 21:17:25,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:25,695 INFO L225 Difference]: With dead ends: 13963 [2019-10-13 21:17:25,695 INFO L226 Difference]: Without dead ends: 6700 [2019-10-13 21:17:25,724 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:17:25,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6700 states. [2019-10-13 21:17:26,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6700 to 6496. [2019-10-13 21:17:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6496 states. [2019-10-13 21:17:26,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6496 states to 6496 states and 8632 transitions. [2019-10-13 21:17:26,099 INFO L78 Accepts]: Start accepts. Automaton has 6496 states and 8632 transitions. Word has length 208 [2019-10-13 21:17:26,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:26,100 INFO L462 AbstractCegarLoop]: Abstraction has 6496 states and 8632 transitions. [2019-10-13 21:17:26,100 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:26,100 INFO L276 IsEmpty]: Start isEmpty. Operand 6496 states and 8632 transitions. [2019-10-13 21:17:26,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-13 21:17:26,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:26,120 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:26,121 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:26,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:26,121 INFO L82 PathProgramCache]: Analyzing trace with hash -145871011, now seen corresponding path program 1 times [2019-10-13 21:17:26,122 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:26,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583655293] [2019-10-13 21:17:26,123 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,123 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:26,417 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:26,418 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583655293] [2019-10-13 21:17:26,419 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:26,419 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:26,420 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543374170] [2019-10-13 21:17:26,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:26,421 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:26,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:26,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:26,422 INFO L87 Difference]: Start difference. First operand 6496 states and 8632 transitions. Second operand 3 states. [2019-10-13 21:17:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:26,625 INFO L93 Difference]: Finished difference Result 13239 states and 17776 transitions. [2019-10-13 21:17:26,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:26,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-13 21:17:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:26,671 INFO L225 Difference]: With dead ends: 13239 [2019-10-13 21:17:26,672 INFO L226 Difference]: Without dead ends: 6808 [2019-10-13 21:17:26,693 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:26,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6808 states. [2019-10-13 21:17:26,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6808 to 6804. [2019-10-13 21:17:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6804 states. [2019-10-13 21:17:26,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6804 states to 6804 states and 9205 transitions. [2019-10-13 21:17:26,993 INFO L78 Accepts]: Start accepts. Automaton has 6804 states and 9205 transitions. Word has length 237 [2019-10-13 21:17:26,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:26,994 INFO L462 AbstractCegarLoop]: Abstraction has 6804 states and 9205 transitions. [2019-10-13 21:17:26,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand 6804 states and 9205 transitions. [2019-10-13 21:17:27,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-13 21:17:27,012 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:27,013 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:27,013 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:27,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:27,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1397703735, now seen corresponding path program 1 times [2019-10-13 21:17:27,014 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:27,015 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538250421] [2019-10-13 21:17:27,015 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,015 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:27,170 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 21:17:27,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538250421] [2019-10-13 21:17:27,171 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:27,171 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:27,171 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029166026] [2019-10-13 21:17:27,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:27,172 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:27,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:27,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:27,173 INFO L87 Difference]: Start difference. First operand 6804 states and 9205 transitions. Second operand 3 states. [2019-10-13 21:17:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:27,425 INFO L93 Difference]: Finished difference Result 14123 states and 19431 transitions. [2019-10-13 21:17:27,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:27,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2019-10-13 21:17:27,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:27,465 INFO L225 Difference]: With dead ends: 14123 [2019-10-13 21:17:27,465 INFO L226 Difference]: Without dead ends: 7384 [2019-10-13 21:17:27,484 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:27,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7384 states. [2019-10-13 21:17:27,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7384 to 7380. [2019-10-13 21:17:27,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7380 states. [2019-10-13 21:17:27,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7380 states to 7380 states and 10279 transitions. [2019-10-13 21:17:27,781 INFO L78 Accepts]: Start accepts. Automaton has 7380 states and 10279 transitions. Word has length 244 [2019-10-13 21:17:27,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:27,781 INFO L462 AbstractCegarLoop]: Abstraction has 7380 states and 10279 transitions. [2019-10-13 21:17:27,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 7380 states and 10279 transitions. [2019-10-13 21:17:27,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-13 21:17:27,798 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:27,799 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:27,799 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:27,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:27,799 INFO L82 PathProgramCache]: Analyzing trace with hash 43347179, now seen corresponding path program 1 times [2019-10-13 21:17:27,800 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:27,800 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576785365] [2019-10-13 21:17:27,800 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,800 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:28,058 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 21:17:28,058 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576785365] [2019-10-13 21:17:28,058 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:28,059 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:28,059 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927935850] [2019-10-13 21:17:28,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:28,060 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:28,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:28,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:28,060 INFO L87 Difference]: Start difference. First operand 7380 states and 10279 transitions. Second operand 8 states. [2019-10-13 21:17:32,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:32,531 INFO L93 Difference]: Finished difference Result 22506 states and 32827 transitions. [2019-10-13 21:17:32,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:32,532 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 245 [2019-10-13 21:17:32,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:32,630 INFO L225 Difference]: With dead ends: 22506 [2019-10-13 21:17:32,631 INFO L226 Difference]: Without dead ends: 15191 [2019-10-13 21:17:32,657 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:17:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15191 states. [2019-10-13 21:17:33,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15191 to 9464. [2019-10-13 21:17:33,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9464 states. [2019-10-13 21:17:33,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9464 states to 9464 states and 14543 transitions. [2019-10-13 21:17:33,265 INFO L78 Accepts]: Start accepts. Automaton has 9464 states and 14543 transitions. Word has length 245 [2019-10-13 21:17:33,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:33,265 INFO L462 AbstractCegarLoop]: Abstraction has 9464 states and 14543 transitions. [2019-10-13 21:17:33,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:33,266 INFO L276 IsEmpty]: Start isEmpty. Operand 9464 states and 14543 transitions. [2019-10-13 21:17:33,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-13 21:17:33,302 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:33,303 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:33,303 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:33,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:33,304 INFO L82 PathProgramCache]: Analyzing trace with hash -396121253, now seen corresponding path program 1 times [2019-10-13 21:17:33,304 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:33,304 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414636348] [2019-10-13 21:17:33,304 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:33,304 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:33,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:33,552 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 21:17:33,553 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414636348] [2019-10-13 21:17:33,553 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:33,553 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:33,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404763999] [2019-10-13 21:17:33,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:33,554 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:33,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:33,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:33,555 INFO L87 Difference]: Start difference. First operand 9464 states and 14543 transitions. Second operand 8 states.