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_spec4_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:15:32,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:15:32,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:15:32,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:15:32,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:15:32,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:15:32,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:15:32,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:15:32,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:15:32,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:15:32,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:15:32,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:15:32,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:15:32,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:15:32,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:15:32,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:15:32,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:15:32,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:15:32,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:15:32,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:15:32,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:15:32,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:15:32,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:15:32,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:15:32,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:15:32,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:15:32,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:15:32,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:15:32,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:15:32,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:15:32,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:15:32,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:15:32,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:15:32,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:15:32,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:15:32,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:15:32,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:15:32,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:15:32,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:15:32,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:15:32,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:15:32,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:15:32,305 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:15:32,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:15:32,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:15:32,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:15:32,307 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:15:32,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:15:32,307 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:15:32,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:15:32,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:15:32,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:15:32,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:15:32,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:15:32,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:15:32,308 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:15:32,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:15:32,309 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:15:32,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:15:32,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:15:32,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:15:32,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:15:32,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:15:32,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:32,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:15:32,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:15:32,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:15:32,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:15:32,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:15:32,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:15:32,311 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:15:32,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:15:32,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:15:32,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:15:32,610 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:15:32,610 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:15:32,611 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2019-10-15 01:15:32,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad66101c/9c73251babc64b13a0fc43dc5b2d63fb/FLAG385fe9bac [2019-10-15 01:15:33,278 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:15:33,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2019-10-15 01:15:33,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad66101c/9c73251babc64b13a0fc43dc5b2d63fb/FLAG385fe9bac [2019-10-15 01:15:33,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad66101c/9c73251babc64b13a0fc43dc5b2d63fb [2019-10-15 01:15:33,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:15:33,570 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:15:33,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:33,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:15:33,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:15:33,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:33" (1/1) ... [2019-10-15 01:15:33,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605515df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:33, skipping insertion in model container [2019-10-15 01:15:33,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:33" (1/1) ... [2019-10-15 01:15:33,586 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:15:33,672 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:15:34,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:34,433 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:15:34,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:34,690 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:15:34,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:34 WrapperNode [2019-10-15 01:15:34,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:34,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:15:34,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:15:34,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:15:34,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:34" (1/1) ... [2019-10-15 01:15:34,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:34" (1/1) ... [2019-10-15 01:15:34,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:34" (1/1) ... [2019-10-15 01:15:34,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:34" (1/1) ... [2019-10-15 01:15:34,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:34" (1/1) ... [2019-10-15 01:15:34,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:34" (1/1) ... [2019-10-15 01:15:34,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:34" (1/1) ... [2019-10-15 01:15:34,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:15:34,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:15:34,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:15:34,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:15:34,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:15:34,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:15:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:15:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:15:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:15:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:15:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:15:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:15:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:15:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:15:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:15:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:15:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:15:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:15:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:15:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:15:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:15:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:15:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:15:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:15:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:15:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:15:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:15:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:15:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:15:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:15:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:15:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:15:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:15:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:15:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:15:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:15:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:15:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:15:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:15:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:15:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:15:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:15:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:15:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:15:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:15:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:15:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:15:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:15:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:15:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:15:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:15:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:15:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:15:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:15:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:15:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:15:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:15:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:15:35,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:35,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:15:35,003 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:15:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:15:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:15:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:15:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:15:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:15:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:15:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:15:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:15:35,005 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:15:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:15:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:15:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:15:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:15:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:15:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:15:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:15:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:15:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:15:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:15:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:15:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:15:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:15:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:15:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:15:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:15:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:15:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:15:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:15:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:15:35,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:15:35,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:15:35,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:15:35,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:15:35,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:15:35,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:15:35,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:15:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:15:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:15:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:15:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:15:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:15:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:15:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:15:35,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:15:35,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:15:35,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:15:35,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:15:35,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:15:35,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:15:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:15:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:15:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:15:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:15:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:15:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:15:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:15:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:15:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:35,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:15:35,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:15:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:15:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:15:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:15:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:15:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:15:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:15:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:15:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:15:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:15:35,027 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:15:35,028 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:15:35,028 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:15:35,028 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:15:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:15:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:15:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:15:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:15:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:15:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:15:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:15:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:15:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:15:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:15:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:15:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:15:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:15:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:15:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:15:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:15:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:15:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:15:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:15:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:15:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:15:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:15:35,041 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:15:35,041 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:15:35,041 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:15:35,041 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:15:35,041 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:15:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:15:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:15:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:15:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:15:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:15:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:15:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:15:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:15:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:15:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:15:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:15:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:15:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:15:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:15:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:15:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:15:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:15:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:15:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:15:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:15:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:15:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:15:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:15:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:15:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:15:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:15:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:15:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:15:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:15:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:15:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:15:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:15:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:15:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:15:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:15:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:15:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:15:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:15:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:15:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:15:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:15:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:15:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:15:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:15:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:15:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:15:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:15:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:15:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:15:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:15:35,048 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:15:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:15:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:15:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:15:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:15:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:15:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:15:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:15:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:15:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:15:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:15:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:15:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:15:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:15:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:15:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:15:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:15:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:15:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:15:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:15:37,136 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:15:37,136 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:15:37,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:37 BoogieIcfgContainer [2019-10-15 01:15:37,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:15:37,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:15:37,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:15:37,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:15:37,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:15:33" (1/3) ... [2019-10-15 01:15:37,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b57e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:37, skipping insertion in model container [2019-10-15 01:15:37,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:34" (2/3) ... [2019-10-15 01:15:37,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b57e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:37, skipping insertion in model container [2019-10-15 01:15:37,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:37" (3/3) ... [2019-10-15 01:15:37,149 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product25.cil.c [2019-10-15 01:15:37,159 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:15:37,169 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:15:37,181 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:15:37,212 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:15:37,212 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:15:37,212 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:15:37,212 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:15:37,212 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:15:37,212 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:15:37,213 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:15:37,213 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:15:37,244 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states. [2019-10-15 01:15:37,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-15 01:15:37,265 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:37,266 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:37,268 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:37,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:37,275 INFO L82 PathProgramCache]: Analyzing trace with hash 979301507, now seen corresponding path program 1 times [2019-10-15 01:15:37,285 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:37,286 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633009779] [2019-10-15 01:15:37,286 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:37,286 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:37,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:37,885 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:37,885 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633009779] [2019-10-15 01:15:37,887 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:37,887 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:15:37,887 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329417426] [2019-10-15 01:15:37,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:15:37,897 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:37,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:15:37,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:37,913 INFO L87 Difference]: Start difference. First operand 587 states. Second operand 2 states. [2019-10-15 01:15:38,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:38,020 INFO L93 Difference]: Finished difference Result 860 states and 1158 transitions. [2019-10-15 01:15:38,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:15:38,022 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 157 [2019-10-15 01:15:38,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:38,056 INFO L225 Difference]: With dead ends: 860 [2019-10-15 01:15:38,056 INFO L226 Difference]: Without dead ends: 558 [2019-10-15 01:15:38,062 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:38,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2019-10-15 01:15:38,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2019-10-15 01:15:38,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2019-10-15 01:15:38,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 758 transitions. [2019-10-15 01:15:38,171 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 758 transitions. Word has length 157 [2019-10-15 01:15:38,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:38,174 INFO L462 AbstractCegarLoop]: Abstraction has 558 states and 758 transitions. [2019-10-15 01:15:38,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:15:38,174 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 758 transitions. [2019-10-15 01:15:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-15 01:15:38,181 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:38,181 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:38,181 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:38,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:38,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1208333111, now seen corresponding path program 1 times [2019-10-15 01:15:38,182 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:38,182 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891755906] [2019-10-15 01:15:38,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:38,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:38,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:38,412 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:38,413 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891755906] [2019-10-15 01:15:38,413 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:38,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:38,413 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482703386] [2019-10-15 01:15:38,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:38,416 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:38,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:38,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:38,417 INFO L87 Difference]: Start difference. First operand 558 states and 758 transitions. Second operand 3 states. [2019-10-15 01:15:38,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:38,501 INFO L93 Difference]: Finished difference Result 843 states and 1124 transitions. [2019-10-15 01:15:38,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:38,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-10-15 01:15:38,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:38,509 INFO L225 Difference]: With dead ends: 843 [2019-10-15 01:15:38,509 INFO L226 Difference]: Without dead ends: 561 [2019-10-15 01:15:38,513 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:38,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2019-10-15 01:15:38,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 560. [2019-10-15 01:15:38,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2019-10-15 01:15:38,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 760 transitions. [2019-10-15 01:15:38,566 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 760 transitions. Word has length 158 [2019-10-15 01:15:38,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:38,567 INFO L462 AbstractCegarLoop]: Abstraction has 560 states and 760 transitions. [2019-10-15 01:15:38,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:38,567 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 760 transitions. [2019-10-15 01:15:38,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 01:15:38,571 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:38,571 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:38,571 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:38,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:38,572 INFO L82 PathProgramCache]: Analyzing trace with hash -898533821, now seen corresponding path program 1 times [2019-10-15 01:15:38,572 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:38,572 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401305001] [2019-10-15 01:15:38,572 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:38,573 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:38,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:38,803 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401305001] [2019-10-15 01:15:38,803 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:38,803 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:38,804 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526559174] [2019-10-15 01:15:38,806 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:38,806 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:38,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:38,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:38,807 INFO L87 Difference]: Start difference. First operand 560 states and 760 transitions. Second operand 3 states. [2019-10-15 01:15:38,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:38,849 INFO L93 Difference]: Finished difference Result 1098 states and 1521 transitions. [2019-10-15 01:15:38,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:38,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-10-15 01:15:38,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:38,855 INFO L225 Difference]: With dead ends: 1098 [2019-10-15 01:15:38,855 INFO L226 Difference]: Without dead ends: 603 [2019-10-15 01:15:38,857 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:38,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2019-10-15 01:15:38,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 602. [2019-10-15 01:15:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-10-15 01:15:38,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 832 transitions. [2019-10-15 01:15:38,893 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 832 transitions. Word has length 164 [2019-10-15 01:15:38,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:38,893 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 832 transitions. [2019-10-15 01:15:38,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:38,894 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 832 transitions. [2019-10-15 01:15:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:15:38,906 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:38,907 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:38,907 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:38,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:38,908 INFO L82 PathProgramCache]: Analyzing trace with hash -2079025427, now seen corresponding path program 1 times [2019-10-15 01:15:38,908 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:38,908 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533736946] [2019-10-15 01:15:38,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:38,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:38,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:39,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533736946] [2019-10-15 01:15:39,335 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:39,337 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:15:39,337 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882035019] [2019-10-15 01:15:39,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:39,339 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:39,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:39,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:15:39,340 INFO L87 Difference]: Start difference. First operand 602 states and 832 transitions. Second operand 7 states. [2019-10-15 01:15:42,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:42,727 INFO L93 Difference]: Finished difference Result 1158 states and 1558 transitions. [2019-10-15 01:15:42,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:15:42,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2019-10-15 01:15:42,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:42,740 INFO L225 Difference]: With dead ends: 1158 [2019-10-15 01:15:42,740 INFO L226 Difference]: Without dead ends: 887 [2019-10-15 01:15:42,743 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:15:42,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2019-10-15 01:15:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 878. [2019-10-15 01:15:42,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2019-10-15 01:15:42,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1192 transitions. [2019-10-15 01:15:42,792 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1192 transitions. Word has length 165 [2019-10-15 01:15:42,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:42,793 INFO L462 AbstractCegarLoop]: Abstraction has 878 states and 1192 transitions. [2019-10-15 01:15:42,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:42,793 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1192 transitions. [2019-10-15 01:15:42,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 01:15:42,796 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:42,797 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:42,797 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:42,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:42,797 INFO L82 PathProgramCache]: Analyzing trace with hash 2091303860, now seen corresponding path program 1 times [2019-10-15 01:15:42,798 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:42,798 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244416824] [2019-10-15 01:15:42,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:42,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:42,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:43,170 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:43,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244416824] [2019-10-15 01:15:43,171 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:43,171 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:15:43,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691306842] [2019-10-15 01:15:43,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:15:43,172 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:43,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:15:43,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:15:43,174 INFO L87 Difference]: Start difference. First operand 878 states and 1192 transitions. Second operand 18 states. [2019-10-15 01:15:43,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:43,626 INFO L93 Difference]: Finished difference Result 1519 states and 2047 transitions. [2019-10-15 01:15:43,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:15:43,626 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 166 [2019-10-15 01:15:43,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:43,634 INFO L225 Difference]: With dead ends: 1519 [2019-10-15 01:15:43,634 INFO L226 Difference]: Without dead ends: 966 [2019-10-15 01:15:43,637 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:15:43,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2019-10-15 01:15:43,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 964. [2019-10-15 01:15:43,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2019-10-15 01:15:43,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1313 transitions. [2019-10-15 01:15:43,698 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1313 transitions. Word has length 166 [2019-10-15 01:15:43,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:43,700 INFO L462 AbstractCegarLoop]: Abstraction has 964 states and 1313 transitions. [2019-10-15 01:15:43,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:15:43,700 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1313 transitions. [2019-10-15 01:15:43,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-15 01:15:43,704 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:43,705 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:43,705 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:43,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:43,705 INFO L82 PathProgramCache]: Analyzing trace with hash -328084636, now seen corresponding path program 1 times [2019-10-15 01:15:43,705 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:43,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421898609] [2019-10-15 01:15:43,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:43,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:43,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:43,941 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:43,941 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421898609] [2019-10-15 01:15:43,942 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:43,942 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:15:43,942 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172702533] [2019-10-15 01:15:43,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:15:43,944 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:43,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:15:43,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:15:43,945 INFO L87 Difference]: Start difference. First operand 964 states and 1313 transitions. Second operand 8 states. [2019-10-15 01:15:44,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:44,998 INFO L93 Difference]: Finished difference Result 2103 states and 2822 transitions. [2019-10-15 01:15:44,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:44,999 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2019-10-15 01:15:44,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:45,009 INFO L225 Difference]: With dead ends: 2103 [2019-10-15 01:15:45,009 INFO L226 Difference]: Without dead ends: 1642 [2019-10-15 01:15:45,012 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:15:45,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2019-10-15 01:15:45,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1623. [2019-10-15 01:15:45,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1623 states. [2019-10-15 01:15:45,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2190 transitions. [2019-10-15 01:15:45,090 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2190 transitions. Word has length 175 [2019-10-15 01:15:45,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:45,090 INFO L462 AbstractCegarLoop]: Abstraction has 1623 states and 2190 transitions. [2019-10-15 01:15:45,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:15:45,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2190 transitions. [2019-10-15 01:15:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 01:15:45,095 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:45,095 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:45,096 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:45,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:45,096 INFO L82 PathProgramCache]: Analyzing trace with hash 958665188, now seen corresponding path program 1 times [2019-10-15 01:15:45,096 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:45,096 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080177751] [2019-10-15 01:15:45,097 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:45,097 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:45,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:45,402 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:45,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080177751] [2019-10-15 01:15:45,403 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:45,403 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-15 01:15:45,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213292093] [2019-10-15 01:15:45,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-15 01:15:45,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:45,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-15 01:15:45,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:15:45,405 INFO L87 Difference]: Start difference. First operand 1623 states and 2190 transitions. Second operand 17 states. [2019-10-15 01:15:46,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:46,217 INFO L93 Difference]: Finished difference Result 2246 states and 3012 transitions. [2019-10-15 01:15:46,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 01:15:46,218 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 176 [2019-10-15 01:15:46,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:46,229 INFO L225 Difference]: With dead ends: 2246 [2019-10-15 01:15:46,229 INFO L226 Difference]: Without dead ends: 1622 [2019-10-15 01:15:46,233 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:15:46,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2019-10-15 01:15:46,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1621. [2019-10-15 01:15:46,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1621 states. [2019-10-15 01:15:46,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2185 transitions. [2019-10-15 01:15:46,331 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2185 transitions. Word has length 176 [2019-10-15 01:15:46,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:46,332 INFO L462 AbstractCegarLoop]: Abstraction has 1621 states and 2185 transitions. [2019-10-15 01:15:46,332 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-15 01:15:46,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2185 transitions. [2019-10-15 01:15:46,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 01:15:46,337 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:46,337 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:46,338 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:46,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:46,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1418562754, now seen corresponding path program 2 times [2019-10-15 01:15:46,339 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:46,339 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145363355] [2019-10-15 01:15:46,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:46,596 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:46,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145363355] [2019-10-15 01:15:46,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584697679] [2019-10-15 01:15:46,597 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:47,064 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:15:47,064 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:15:47,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 2120 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:15:47,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:15:47,350 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:47,918 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:15:47,918 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:47,919 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-15 01:15:47,919 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826911389] [2019-10-15 01:15:47,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:15:47,920 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:47,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:15:47,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:15:47,921 INFO L87 Difference]: Start difference. First operand 1621 states and 2185 transitions. Second operand 14 states. [2019-10-15 01:15:49,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:49,889 INFO L93 Difference]: Finished difference Result 4835 states and 6554 transitions. [2019-10-15 01:15:49,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:15:49,889 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 176 [2019-10-15 01:15:49,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:49,925 INFO L225 Difference]: With dead ends: 4835 [2019-10-15 01:15:49,925 INFO L226 Difference]: Without dead ends: 4832 [2019-10-15 01:15:49,930 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 346 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:15:49,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2019-10-15 01:15:50,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 3499. [2019-10-15 01:15:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3499 states. [2019-10-15 01:15:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 4801 transitions. [2019-10-15 01:15:50,254 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 4801 transitions. Word has length 176 [2019-10-15 01:15:50,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:50,255 INFO L462 AbstractCegarLoop]: Abstraction has 3499 states and 4801 transitions. [2019-10-15 01:15:50,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:15:50,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 4801 transitions. [2019-10-15 01:15:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-15 01:15:50,265 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:50,265 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:50,473 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:50,473 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:50,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:50,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1071020961, now seen corresponding path program 1 times [2019-10-15 01:15:50,475 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:50,476 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890266457] [2019-10-15 01:15:50,476 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:50,476 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:50,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:15:50,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890266457] [2019-10-15 01:15:50,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548712642] [2019-10-15 01:15:50,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:51,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 2696 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:51,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:15:51,468 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:51,765 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:51,811 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:51,848 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:15:51,849 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:51,849 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-10-15 01:15:51,849 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035478966] [2019-10-15 01:15:51,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:51,850 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:51,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:51,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:15:51,851 INFO L87 Difference]: Start difference. First operand 3499 states and 4801 transitions. Second operand 7 states. [2019-10-15 01:15:53,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:53,142 INFO L93 Difference]: Finished difference Result 6971 states and 9573 transitions. [2019-10-15 01:15:53,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:15:53,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2019-10-15 01:15:53,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:53,165 INFO L225 Difference]: With dead ends: 6971 [2019-10-15 01:15:53,165 INFO L226 Difference]: Without dead ends: 3511 [2019-10-15 01:15:53,181 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 347 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:15:53,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3511 states. [2019-10-15 01:15:53,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3511 to 3501. [2019-10-15 01:15:53,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3501 states. [2019-10-15 01:15:53,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 4804 transitions. [2019-10-15 01:15:53,383 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 4804 transitions. Word has length 179 [2019-10-15 01:15:53,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:53,384 INFO L462 AbstractCegarLoop]: Abstraction has 3501 states and 4804 transitions. [2019-10-15 01:15:53,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:53,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 4804 transitions. [2019-10-15 01:15:53,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 01:15:53,394 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:53,394 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:53,603 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:53,604 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:53,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:53,604 INFO L82 PathProgramCache]: Analyzing trace with hash 126573105, now seen corresponding path program 1 times [2019-10-15 01:15:53,605 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:53,607 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904405512] [2019-10-15 01:15:53,607 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:53,607 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:53,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:53,774 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:15:53,778 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904405512] [2019-10-15 01:15:53,779 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361772006] [2019-10-15 01:15:53,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:54,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 2694 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:54,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:54,520 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:15:54,520 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:54,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:54,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:54,981 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:55,067 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:55,067 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:55,067 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 20 [2019-10-15 01:15:55,067 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760379212] [2019-10-15 01:15:55,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:15:55,068 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:55,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:15:55,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:15:55,069 INFO L87 Difference]: Start difference. First operand 3501 states and 4804 transitions. Second operand 9 states. [2019-10-15 01:15:57,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:57,003 INFO L93 Difference]: Finished difference Result 6978 states and 9583 transitions. [2019-10-15 01:15:57,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:15:57,006 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 180 [2019-10-15 01:15:57,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:57,026 INFO L225 Difference]: With dead ends: 6978 [2019-10-15 01:15:57,027 INFO L226 Difference]: Without dead ends: 3519 [2019-10-15 01:15:57,039 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 344 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:15:57,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3519 states. [2019-10-15 01:15:57,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3519 to 3517. [2019-10-15 01:15:57,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3517 states. [2019-10-15 01:15:57,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3517 states to 3517 states and 4820 transitions. [2019-10-15 01:15:57,213 INFO L78 Accepts]: Start accepts. Automaton has 3517 states and 4820 transitions. Word has length 180 [2019-10-15 01:15:57,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:57,214 INFO L462 AbstractCegarLoop]: Abstraction has 3517 states and 4820 transitions. [2019-10-15 01:15:57,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:15:57,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3517 states and 4820 transitions. [2019-10-15 01:15:57,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-15 01:15:57,226 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:57,226 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-15 01:15:57,433 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:57,434 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:57,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:57,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1604795262, now seen corresponding path program 1 times [2019-10-15 01:15:57,436 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:57,436 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229269041] [2019-10-15 01:15:57,436 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:57,436 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:57,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:57,654 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:15:57,654 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229269041] [2019-10-15 01:15:57,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489616070] [2019-10-15 01:15:57,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:58,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 2695 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:58,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:58,454 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:15:58,455 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:58,752 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:58,823 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:58,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:58,991 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:58,991 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [7] total 21 [2019-10-15 01:15:58,992 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936994630] [2019-10-15 01:15:58,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:15:58,993 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:58,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:15:58,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2019-10-15 01:15:58,994 INFO L87 Difference]: Start difference. First operand 3517 states and 4820 transitions. Second operand 16 states. [2019-10-15 01:16:00,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:00,716 INFO L93 Difference]: Finished difference Result 6970 states and 9564 transitions. [2019-10-15 01:16:00,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:16:00,717 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 181 [2019-10-15 01:16:00,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:00,735 INFO L225 Difference]: With dead ends: 6970 [2019-10-15 01:16:00,735 INFO L226 Difference]: Without dead ends: 3541 [2019-10-15 01:16:00,745 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 346 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:16:00,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2019-10-15 01:16:00,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3539. [2019-10-15 01:16:00,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3539 states. [2019-10-15 01:16:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 4845 transitions. [2019-10-15 01:16:00,916 INFO L78 Accepts]: Start accepts. Automaton has 3539 states and 4845 transitions. Word has length 181 [2019-10-15 01:16:00,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:00,917 INFO L462 AbstractCegarLoop]: Abstraction has 3539 states and 4845 transitions. [2019-10-15 01:16:00,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:16:00,917 INFO L276 IsEmpty]: Start isEmpty. Operand 3539 states and 4845 transitions. [2019-10-15 01:16:00,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 01:16:00,930 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:00,930 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:16:01,139 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:01,139 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:01,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:01,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1444117277, now seen corresponding path program 2 times [2019-10-15 01:16:01,140 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:01,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705265482] [2019-10-15 01:16:01,141 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:01,141 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:01,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:01,301 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:16:01,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705265482] [2019-10-15 01:16:01,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493315735] [2019-10-15 01:16:01,302 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:02,078 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-15 01:16:02,078 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:16:02,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 2591 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:16:02,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:16:02,199 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:02,416 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:02,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:16:02,528 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:16:02,528 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [7] total 16 [2019-10-15 01:16:02,529 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942449957] [2019-10-15 01:16:02,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:02,533 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:02,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:02,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:16:02,534 INFO L87 Difference]: Start difference. First operand 3539 states and 4845 transitions. Second operand 11 states. [2019-10-15 01:16:04,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:04,342 INFO L93 Difference]: Finished difference Result 6696 states and 9131 transitions. [2019-10-15 01:16:04,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:16:04,343 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 182 [2019-10-15 01:16:04,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:04,361 INFO L225 Difference]: With dead ends: 6696 [2019-10-15 01:16:04,361 INFO L226 Difference]: Without dead ends: 3281 [2019-10-15 01:16:04,372 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 354 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:16:04,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2019-10-15 01:16:04,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3273. [2019-10-15 01:16:04,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3273 states. [2019-10-15 01:16:04,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 4422 transitions. [2019-10-15 01:16:04,516 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 4422 transitions. Word has length 182 [2019-10-15 01:16:04,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:04,517 INFO L462 AbstractCegarLoop]: Abstraction has 3273 states and 4422 transitions. [2019-10-15 01:16:04,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:04,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 4422 transitions. [2019-10-15 01:16:04,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-15 01:16:04,524 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:04,525 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:16:04,735 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:04,735 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:04,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:04,736 INFO L82 PathProgramCache]: Analyzing trace with hash -505267783, now seen corresponding path program 1 times [2019-10-15 01:16:04,736 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:04,736 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252489134] [2019-10-15 01:16:04,736 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:04,736 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:04,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:04,868 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:16:04,868 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252489134] [2019-10-15 01:16:04,869 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485313061] [2019-10-15 01:16:04,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true