/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:51:03,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:51:03,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:51:03,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:51:03,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:51:03,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:51:03,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:51:03,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:51:03,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:51:03,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:51:03,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:51:03,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:51:03,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:51:03,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:51:03,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:51:03,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:51:03,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:51:03,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:51:03,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:51:03,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:51:03,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:51:03,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:51:03,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:51:03,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:51:03,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:51:03,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:51:03,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:51:03,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:51:03,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:51:03,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:51:03,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:51:03,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:51:03,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:51:03,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:51:03,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:51:03,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:51:03,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:51:03,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:51:03,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:51:03,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:51:03,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:51:03,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:51:03,634 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:51:03,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:51:03,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:51:03,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:51:03,636 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:51:03,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:51:03,636 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:51:03,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:51:03,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:51:03,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:51:03,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:51:03,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:51:03,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:51:03,638 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:51:03,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:51:03,638 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:51:03,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:51:03,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:51:03,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:51:03,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:51:03,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:51:03,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:51:03,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:51:03,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:51:03,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:51:03,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:51:03,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:51:03,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:51:03,641 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:51:03,931 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:51:03,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:51:03,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:51:03,955 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:51:03,955 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:51:03,956 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product29.cil.c [2019-11-07 00:51:04,033 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa27619a7/41786b8af76f49578f1c24ef9bb800d1/FLAGdc3eaefe9 [2019-11-07 00:51:04,683 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:51:04,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product29.cil.c [2019-11-07 00:51:04,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa27619a7/41786b8af76f49578f1c24ef9bb800d1/FLAGdc3eaefe9 [2019-11-07 00:51:04,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa27619a7/41786b8af76f49578f1c24ef9bb800d1 [2019-11-07 00:51:04,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:51:04,902 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:51:04,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:51:04,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:51:04,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:51:04,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:51:04" (1/1) ... [2019-11-07 00:51:04,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4427d3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:04, skipping insertion in model container [2019-11-07 00:51:04,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:51:04" (1/1) ... [2019-11-07 00:51:04,919 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:51:05,007 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:51:05,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:51:05,767 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:51:05,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:51:06,019 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:51:06,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:06 WrapperNode [2019-11-07 00:51:06,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:51:06,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:51:06,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:51:06,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:51:06,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:06" (1/1) ... [2019-11-07 00:51:06,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:06" (1/1) ... [2019-11-07 00:51:06,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:06" (1/1) ... [2019-11-07 00:51:06,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:06" (1/1) ... [2019-11-07 00:51:06,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:06" (1/1) ... [2019-11-07 00:51:06,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:06" (1/1) ... [2019-11-07 00:51:06,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:06" (1/1) ... [2019-11-07 00:51:06,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:51:06,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:51:06,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:51:06,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:51:06,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:51:06,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:51:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:51:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:51:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:51:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:51:06,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:51:06,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:51:06,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:51:06,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:51:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:51:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:51:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:51:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:51:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:51:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:51:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:51:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:51:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:51:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:51:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:51:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:51:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:51:06,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:51:06,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:51:06,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:51:06,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:51:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:51:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:51:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:51:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:51:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:51:06,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:51:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:51:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:51:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:51:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:51:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:51:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:51:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:51:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:51:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:51:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:51:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:51:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:51:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:51:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:51:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:51:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:51:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:51:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:51:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:51:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:51:06,324 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:51:06,324 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:51:06,324 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:51:06,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:51:06,324 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:51:06,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:51:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:51:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:51:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:51:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:51:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:51:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:51:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:51:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:51:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:51:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:51:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:51:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:51:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:51:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:51:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:51:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:51:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:51:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:51:06,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:51:06,330 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:51:06,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:51:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:51:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:51:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:51:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:51:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:51:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:51:06,333 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:51:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 00:51:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 00:51:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:51:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:51:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:51:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:51:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:51:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:51:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:51:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:51:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 00:51:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 00:51:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:51:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:51:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:51:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:51:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:51:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:51:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:51:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:51:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:51:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:51:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:51:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:51:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:51:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:51:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:51:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:51:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 00:51:06,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 00:51:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:51:06,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:51:06,340 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:51:06,340 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:51:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:51:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:51:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:51:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:51:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:51:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:51:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:51:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:51:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:51:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:51:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:51:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:51:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:51:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:51:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:51:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:51:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:51:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:51:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:51:06,354 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:51:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:51:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:51:06,355 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:51:06,356 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:51:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:51:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:51:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:51:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:51:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:51:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:51:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:51:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:51:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:51:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:51:06,364 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:51:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:51:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:51:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:51:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:51:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:51:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:51:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:51:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:51:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:51:06,367 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:51:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:51:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:51:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:51:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:51:06,368 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:51:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:51:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:51:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:51:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:51:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:51:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:51:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:51:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:51:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:51:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:51:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:51:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:51:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:51:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:51:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:51:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:51:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:51:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:51:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:51:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:51:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:51:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:51:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:51:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:51:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:51:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:51:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:51:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:51:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:51:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:51:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:51:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:51:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:51:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:51:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:51:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:51:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:51:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:51:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:51:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:51:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:51:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:51:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:51:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:51:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:51:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:51:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:51:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:51:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:51:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:51:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:51:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:51:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:51:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:51:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 00:51:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 00:51:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:51:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:51:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:51:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:51:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:51:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:51:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:51:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:51:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:51:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:51:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:51:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 00:51:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:51:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 00:51:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 00:51:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:51:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:51:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 00:51:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:51:06,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:51:06,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:51:08,698 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:51:08,698 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:51:08,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:51:08 BoogieIcfgContainer [2019-11-07 00:51:08,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:51:08,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:51:08,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:51:08,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:51:08,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:51:04" (1/3) ... [2019-11-07 00:51:08,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f02b05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:51:08, skipping insertion in model container [2019-11-07 00:51:08,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:06" (2/3) ... [2019-11-07 00:51:08,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f02b05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:51:08, skipping insertion in model container [2019-11-07 00:51:08,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:51:08" (3/3) ... [2019-11-07 00:51:08,708 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product29.cil.c [2019-11-07 00:51:08,718 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:51:08,728 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:51:08,740 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:51:08,773 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:51:08,777 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:51:08,777 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:51:08,777 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:51:08,777 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:51:08,777 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:51:08,778 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:51:08,778 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:51:08,819 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states. [2019-11-07 00:51:08,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-11-07 00:51:08,850 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:08,852 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:08,854 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:08,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:08,859 INFO L82 PathProgramCache]: Analyzing trace with hash 940627505, now seen corresponding path program 1 times [2019-11-07 00:51:08,868 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:08,869 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095263249] [2019-11-07 00:51:08,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:09,510 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-11-07 00:51:09,511 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095263249] [2019-11-07 00:51:09,512 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:51:09,512 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:51:09,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458760947] [2019-11-07 00:51:09,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:51:09,520 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:09,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:51:09,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:51:09,538 INFO L87 Difference]: Start difference. First operand 614 states. Second operand 2 states. [2019-11-07 00:51:09,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:09,624 INFO L93 Difference]: Finished difference Result 869 states and 1190 transitions. [2019-11-07 00:51:09,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:51:09,625 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 204 [2019-11-07 00:51:09,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:09,654 INFO L225 Difference]: With dead ends: 869 [2019-11-07 00:51:09,654 INFO L226 Difference]: Without dead ends: 557 [2019-11-07 00:51:09,661 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:51:09,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-11-07 00:51:09,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2019-11-07 00:51:09,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2019-11-07 00:51:09,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 764 transitions. [2019-11-07 00:51:09,809 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 764 transitions. Word has length 204 [2019-11-07 00:51:09,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:09,811 INFO L462 AbstractCegarLoop]: Abstraction has 557 states and 764 transitions. [2019-11-07 00:51:09,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:51:09,811 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 764 transitions. [2019-11-07 00:51:09,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-11-07 00:51:09,819 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:09,819 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:09,819 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:09,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:09,820 INFO L82 PathProgramCache]: Analyzing trace with hash 861821971, now seen corresponding path program 1 times [2019-11-07 00:51:09,820 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:09,820 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661163] [2019-11-07 00:51:09,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:10,107 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-11-07 00:51:10,107 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661163] [2019-11-07 00:51:10,108 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:51:10,108 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:51:10,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558128509] [2019-11-07 00:51:10,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:51:10,122 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:10,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:51:10,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:51:10,127 INFO L87 Difference]: Start difference. First operand 557 states and 764 transitions. Second operand 3 states. [2019-11-07 00:51:10,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:10,207 INFO L93 Difference]: Finished difference Result 852 states and 1150 transitions. [2019-11-07 00:51:10,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:51:10,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-11-07 00:51:10,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:10,222 INFO L225 Difference]: With dead ends: 852 [2019-11-07 00:51:10,222 INFO L226 Difference]: Without dead ends: 560 [2019-11-07 00:51:10,224 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:51:10,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2019-11-07 00:51:10,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2019-11-07 00:51:10,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2019-11-07 00:51:10,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 766 transitions. [2019-11-07 00:51:10,263 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 766 transitions. Word has length 205 [2019-11-07 00:51:10,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:10,264 INFO L462 AbstractCegarLoop]: Abstraction has 559 states and 766 transitions. [2019-11-07 00:51:10,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:51:10,264 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 766 transitions. [2019-11-07 00:51:10,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-11-07 00:51:10,269 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:10,270 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:10,270 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:10,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:10,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1773355193, now seen corresponding path program 1 times [2019-11-07 00:51:10,271 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:10,271 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155646505] [2019-11-07 00:51:10,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-11-07 00:51:10,443 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155646505] [2019-11-07 00:51:10,443 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:51:10,443 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:51:10,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124169558] [2019-11-07 00:51:10,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:51:10,449 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:10,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:51:10,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:51:10,450 INFO L87 Difference]: Start difference. First operand 559 states and 766 transitions. Second operand 3 states. [2019-11-07 00:51:10,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:10,502 INFO L93 Difference]: Finished difference Result 1094 states and 1530 transitions. [2019-11-07 00:51:10,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:51:10,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2019-11-07 00:51:10,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:10,511 INFO L225 Difference]: With dead ends: 1094 [2019-11-07 00:51:10,511 INFO L226 Difference]: Without dead ends: 600 [2019-11-07 00:51:10,514 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:51:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-07 00:51:10,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 599. [2019-11-07 00:51:10,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-11-07 00:51:10,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 835 transitions. [2019-11-07 00:51:10,614 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 835 transitions. Word has length 211 [2019-11-07 00:51:10,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:10,616 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 835 transitions. [2019-11-07 00:51:10,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:51:10,616 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 835 transitions. [2019-11-07 00:51:10,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-11-07 00:51:10,622 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:10,622 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:10,622 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:10,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:10,623 INFO L82 PathProgramCache]: Analyzing trace with hash 478766471, now seen corresponding path program 1 times [2019-11-07 00:51:10,623 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:10,623 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139848078] [2019-11-07 00:51:10,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:11,090 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:51:11,090 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139848078] [2019-11-07 00:51:11,091 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955740553] [2019-11-07 00:51:11,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:11,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 2987 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:51:11,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:12,248 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 00:51:12,248 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:12,752 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:51:12,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:12,973 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:13,145 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:51:13,146 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:51:13,146 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19, 9] total 32 [2019-11-07 00:51:13,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962694184] [2019-11-07 00:51:13,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:51:13,147 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:13,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:51:13,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2019-11-07 00:51:13,148 INFO L87 Difference]: Start difference. First operand 599 states and 835 transitions. Second operand 9 states. [2019-11-07 00:51:15,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:15,859 INFO L93 Difference]: Finished difference Result 1176 states and 1650 transitions. [2019-11-07 00:51:15,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:51:15,860 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 212 [2019-11-07 00:51:15,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:15,865 INFO L225 Difference]: With dead ends: 1176 [2019-11-07 00:51:15,866 INFO L226 Difference]: Without dead ends: 613 [2019-11-07 00:51:15,869 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 411 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=1083, Unknown=0, NotChecked=0, Total=1190 [2019-11-07 00:51:15,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2019-11-07 00:51:15,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2019-11-07 00:51:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-11-07 00:51:15,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 853 transitions. [2019-11-07 00:51:15,913 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 853 transitions. Word has length 212 [2019-11-07 00:51:15,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:15,914 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 853 transitions. [2019-11-07 00:51:15,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:51:15,914 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 853 transitions. [2019-11-07 00:51:15,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-11-07 00:51:15,922 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:15,922 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:16,130 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:16,131 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:16,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:16,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1541922142, now seen corresponding path program 1 times [2019-11-07 00:51:16,132 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:16,132 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430213170] [2019-11-07 00:51:16,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:16,542 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:51:16,543 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430213170] [2019-11-07 00:51:16,543 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025235305] [2019-11-07 00:51:16,543 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 [2019-11-07 00:51:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:17,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 2988 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 00:51:17,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 00:51:17,363 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:17,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:17,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:17,908 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:51:17,908 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:51:17,909 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19, 7] total 28 [2019-11-07 00:51:17,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740244198] [2019-11-07 00:51:17,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:51:17,910 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:17,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:51:17,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2019-11-07 00:51:17,911 INFO L87 Difference]: Start difference. First operand 613 states and 853 transitions. Second operand 7 states. [2019-11-07 00:51:19,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:19,403 INFO L93 Difference]: Finished difference Result 1177 states and 1654 transitions. [2019-11-07 00:51:19,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:51:19,404 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2019-11-07 00:51:19,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:19,411 INFO L225 Difference]: With dead ends: 1177 [2019-11-07 00:51:19,411 INFO L226 Difference]: Without dead ends: 615 [2019-11-07 00:51:19,415 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 418 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2019-11-07 00:51:19,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-11-07 00:51:19,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2019-11-07 00:51:19,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-11-07 00:51:19,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 856 transitions. [2019-11-07 00:51:19,446 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 856 transitions. Word has length 213 [2019-11-07 00:51:19,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:19,446 INFO L462 AbstractCegarLoop]: Abstraction has 615 states and 856 transitions. [2019-11-07 00:51:19,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:51:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 856 transitions. [2019-11-07 00:51:19,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-11-07 00:51:19,451 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:19,451 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:19,664 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:19,665 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:19,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:19,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1444274426, now seen corresponding path program 1 times [2019-11-07 00:51:19,666 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:19,666 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959708299] [2019-11-07 00:51:19,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:20,084 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:51:20,085 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959708299] [2019-11-07 00:51:20,085 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643164885] [2019-11-07 00:51:20,085 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 [2019-11-07 00:51:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:20,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 2989 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:51:20,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:21,034 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-07 00:51:21,034 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:21,431 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:51:21,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:21,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:21,820 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:51:21,821 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:51:21,821 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [19] total 33 [2019-11-07 00:51:21,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977438505] [2019-11-07 00:51:21,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 00:51:21,823 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:21,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 00:51:21,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2019-11-07 00:51:21,824 INFO L87 Difference]: Start difference. First operand 615 states and 856 transitions. Second operand 16 states. [2019-11-07 00:51:23,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:23,757 INFO L93 Difference]: Finished difference Result 1181 states and 1654 transitions. [2019-11-07 00:51:23,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 00:51:23,758 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 214 [2019-11-07 00:51:23,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:23,763 INFO L225 Difference]: With dead ends: 1181 [2019-11-07 00:51:23,763 INFO L226 Difference]: Without dead ends: 627 [2019-11-07 00:51:23,766 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 415 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2019-11-07 00:51:23,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2019-11-07 00:51:23,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 625. [2019-11-07 00:51:23,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2019-11-07 00:51:23,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 867 transitions. [2019-11-07 00:51:23,797 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 867 transitions. Word has length 214 [2019-11-07 00:51:23,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:23,798 INFO L462 AbstractCegarLoop]: Abstraction has 625 states and 867 transitions. [2019-11-07 00:51:23,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 00:51:23,798 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 867 transitions. [2019-11-07 00:51:23,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-11-07 00:51:23,803 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:23,803 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:24,018 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:24,019 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:24,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:24,020 INFO L82 PathProgramCache]: Analyzing trace with hash -65849621, now seen corresponding path program 2 times [2019-11-07 00:51:24,020 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:24,021 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131745514] [2019-11-07 00:51:24,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:24,563 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:51:24,563 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131745514] [2019-11-07 00:51:24,564 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662743156] [2019-11-07 00:51:24,564 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 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 [2019-11-07 00:51:25,186 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-11-07 00:51:25,187 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 00:51:25,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 2349 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 00:51:25,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:25,414 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-11-07 00:51:25,414 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:51:25,917 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:51:25,918 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [19] total 31 [2019-11-07 00:51:25,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771128285] [2019-11-07 00:51:25,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 00:51:25,919 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:25,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 00:51:25,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-11-07 00:51:25,920 INFO L87 Difference]: Start difference. First operand 625 states and 867 transitions. Second operand 14 states. [2019-11-07 00:51:28,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:28,300 INFO L93 Difference]: Finished difference Result 2086 states and 2938 transitions. [2019-11-07 00:51:28,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-07 00:51:28,301 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 215 [2019-11-07 00:51:28,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:28,312 INFO L225 Difference]: With dead ends: 2086 [2019-11-07 00:51:28,312 INFO L226 Difference]: Without dead ends: 1807 [2019-11-07 00:51:28,316 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 426 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2019-11-07 00:51:28,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2019-11-07 00:51:28,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1479. [2019-11-07 00:51:28,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1479 states. [2019-11-07 00:51:28,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2118 transitions. [2019-11-07 00:51:28,423 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2118 transitions. Word has length 215 [2019-11-07 00:51:28,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:28,425 INFO L462 AbstractCegarLoop]: Abstraction has 1479 states and 2118 transitions. [2019-11-07 00:51:28,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 00:51:28,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2118 transitions. [2019-11-07 00:51:28,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-11-07 00:51:28,433 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:28,433 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:28,640 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:28,640 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:28,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:28,641 INFO L82 PathProgramCache]: Analyzing trace with hash -215833164, now seen corresponding path program 1 times [2019-11-07 00:51:28,641 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:28,641 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758034820] [2019-11-07 00:51:28,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:28,977 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:51:28,978 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758034820] [2019-11-07 00:51:28,978 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742616652] [2019-11-07 00:51:28,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-07 00:51:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:29,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 2991 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:51:29,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:30,059 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-07 00:51:30,059 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:30,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:51:30,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:30,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:30,912 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:51:30,912 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:51:30,912 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [15] total 28 [2019-11-07 00:51:30,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142664976] [2019-11-07 00:51:30,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:51:30,914 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:30,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:51:30,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2019-11-07 00:51:30,915 INFO L87 Difference]: Start difference. First operand 1479 states and 2118 transitions. Second operand 15 states. [2019-11-07 00:51:32,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:32,748 INFO L93 Difference]: Finished difference Result 2852 states and 4112 transitions. [2019-11-07 00:51:32,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 00:51:32,749 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 216 [2019-11-07 00:51:32,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:32,765 INFO L225 Difference]: With dead ends: 2852 [2019-11-07 00:51:32,765 INFO L226 Difference]: Without dead ends: 1485 [2019-11-07 00:51:32,770 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 419 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2019-11-07 00:51:32,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2019-11-07 00:51:32,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1479. [2019-11-07 00:51:32,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1479 states. [2019-11-07 00:51:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2116 transitions. [2019-11-07 00:51:32,840 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2116 transitions. Word has length 216 [2019-11-07 00:51:32,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:32,841 INFO L462 AbstractCegarLoop]: Abstraction has 1479 states and 2116 transitions. [2019-11-07 00:51:32,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:51:32,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2116 transitions. [2019-11-07 00:51:32,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-07 00:51:32,847 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:32,848 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:33,062 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:33,063 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:33,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:33,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1729834018, now seen corresponding path program 1 times [2019-11-07 00:51:33,064 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:33,071 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957115962] [2019-11-07 00:51:33,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-11-07 00:51:33,373 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957115962] [2019-11-07 00:51:33,374 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130795753] [2019-11-07 00:51:33,374 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 [2019-11-07 00:51:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:34,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 2992 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 00:51:34,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:34,273 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-07 00:51:34,273 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:34,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:34,643 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:51:34,783 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:51:34,784 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [15] total 25 [2019-11-07 00:51:34,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933226637] [2019-11-07 00:51:34,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 00:51:34,785 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:34,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 00:51:34,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:51:34,785 INFO L87 Difference]: Start difference. First operand 1479 states and 2116 transitions. Second operand 12 states. [2019-11-07 00:51:36,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:36,162 INFO L93 Difference]: Finished difference Result 2313 states and 3272 transitions. [2019-11-07 00:51:36,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 00:51:36,163 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 217 [2019-11-07 00:51:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:36,171 INFO L225 Difference]: With dead ends: 2313 [2019-11-07 00:51:36,171 INFO L226 Difference]: Without dead ends: 1222 [2019-11-07 00:51:36,175 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 426 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2019-11-07 00:51:36,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2019-11-07 00:51:36,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1222. [2019-11-07 00:51:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1222 states. [2019-11-07 00:51:36,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1709 transitions. [2019-11-07 00:51:36,225 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1709 transitions. Word has length 217 [2019-11-07 00:51:36,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:36,225 INFO L462 AbstractCegarLoop]: Abstraction has 1222 states and 1709 transitions. [2019-11-07 00:51:36,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 00:51:36,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1709 transitions. [2019-11-07 00:51:36,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-11-07 00:51:36,231 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:36,231 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:36,446 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:36,446 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:36,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:36,447 INFO L82 PathProgramCache]: Analyzing trace with hash 357797082, now seen corresponding path program 2 times [2019-11-07 00:51:36,448 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:36,448 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671927269] [2019-11-07 00:51:36,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:36,791 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:51:36,792 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671927269] [2019-11-07 00:51:36,792 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372766479] [2019-11-07 00:51:36,792 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:37,562 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-11-07 00:51:37,562 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 00:51:37,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-07 00:51:37,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:37,768 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-11-07 00:51:37,768 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:51:38,235 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 00:51:38,235 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [15] total 27 [2019-11-07 00:51:38,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990655151] [2019-11-07 00:51:38,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 00:51:38,236 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:38,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 00:51:38,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2019-11-07 00:51:38,237 INFO L87 Difference]: Start difference. First operand 1222 states and 1709 transitions. Second operand 14 states.