/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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:18:11,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:18:11,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:18:11,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:18:11,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:18:11,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:18:11,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:18:11,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:18:11,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:18:11,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:18:11,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:18:11,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:18:11,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:18:11,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:18:11,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:18:11,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:18:11,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:18:11,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:18:11,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:18:11,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:18:11,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:18:11,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:18:11,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:18:11,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:18:11,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:18:11,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:18:11,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:18:11,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:18:11,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:18:11,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:18:11,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:18:11,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:18:11,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:18:11,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:18:11,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:18:11,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:18:11,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:18:11,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:18:11,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:18:11,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:18:11,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:18:11,700 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 04:18:11,715 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:18:11,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:18:11,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:18:11,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:18:11,716 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:18:11,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:18:11,717 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:18:11,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:18:11,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:18:11,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:18:11,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:18:11,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:18:11,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:18:11,719 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:18:11,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:18:11,719 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:18:11,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:18:11,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:18:11,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:18:11,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:18:11,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:18:11,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:18:11,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:18:11,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:18:11,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:18:11,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:18:11,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:18:11,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:18:11,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:18:12,011 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:18:12,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:18:12,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:18:12,034 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:18:12,034 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:18:12,035 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c [2019-11-07 04:18:12,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e89716e7/c620a3a183484e49990f76dec8cfb022/FLAGb74e11c9e [2019-11-07 04:18:12,745 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:18:12,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product13.cil.c [2019-11-07 04:18:12,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e89716e7/c620a3a183484e49990f76dec8cfb022/FLAGb74e11c9e [2019-11-07 04:18:12,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e89716e7/c620a3a183484e49990f76dec8cfb022 [2019-11-07 04:18:12,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:18:12,961 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:18:12,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:18:12,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:18:12,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:18:12,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:12" (1/1) ... [2019-11-07 04:18:12,970 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 04:18:12, skipping insertion in model container [2019-11-07 04:18:12,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:12" (1/1) ... [2019-11-07 04:18:12,978 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:18:13,041 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:18:13,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:18:13,863 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:18:14,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:18:14,127 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:18:14,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:14 WrapperNode [2019-11-07 04:18:14,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:18:14,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:18:14,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:18:14,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:18:14,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:14" (1/1) ... [2019-11-07 04:18:14,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:14" (1/1) ... [2019-11-07 04:18:14,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:14" (1/1) ... [2019-11-07 04:18:14,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:14" (1/1) ... [2019-11-07 04:18:14,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:14" (1/1) ... [2019-11-07 04:18:14,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:14" (1/1) ... [2019-11-07 04:18:14,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:14" (1/1) ... [2019-11-07 04:18:14,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:18:14,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:18:14,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:18:14,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:18:14,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:14" (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 04:18:14,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:18:14,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:18:14,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:18:14,406 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:18:14,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:18:14,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:18:14,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:18:14,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:18:14,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:18:14,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:18:14,409 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:18:14,410 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:18:14,410 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:18:14,410 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:18:14,410 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:18:14,411 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:18:14,413 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:18:14,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:18:14,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:18:14,414 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:18:14,414 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:18:14,414 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:18:14,414 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:18:14,415 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:18:14,415 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:18:14,415 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:18:14,415 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:18:14,415 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:18:14,416 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:18:14,416 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:18:14,416 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:18:14,417 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:18:14,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:18:14,417 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:18:14,417 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:18:14,417 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:18:14,418 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:18:14,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:18:14,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:18:14,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:18:14,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:18:14,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:18:14,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:18:14,419 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:18:14,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:18:14,419 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:18:14,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:18:14,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:18:14,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:18:14,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:18:14,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:18:14,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:18:14,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:18:14,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:18:14,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:18:14,421 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:18:14,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:18:14,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:18:14,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:18:14,422 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:18:14,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:18:14,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:18:14,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:18:14,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:18:14,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:18:14,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:18:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:18:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:18:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:18:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:18:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:18:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:18:14,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:18:14,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:18:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:18:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:18:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:18:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:18:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:18:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:18:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:18:14,428 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:18:14,428 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:18:14,428 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:18:14,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:18:14,429 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:18:14,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:18:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:18:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:18:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:18:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:18:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:18:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:18:14,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:18:14,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:18:14,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:18:14,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:18:14,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:18:14,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:18:14,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:18:14,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:18:14,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:18:14,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:18:14,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:18:14,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:18:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:18:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:18:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:18:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:18:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:18:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:18:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:18:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:18:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:18:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:18:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:18:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:18:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:18:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:18:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:18:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:18:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:18:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:18:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:18:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:18:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:18:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:18:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:18:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:18:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:18:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:18:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:18:14,440 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:18:14,440 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:18:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:18:14,443 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:18:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:18:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:18:14,444 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:18:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:18:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:18:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:18:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:18:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:18:14,452 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:18:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:18:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:18:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:18:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:18:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:18:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:18:14,453 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:18:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:18:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:18:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:18:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:18:14,454 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:18:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:18:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:18:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:18:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:18:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:18:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:18:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:18:14,455 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:18:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:18:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:18:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:18:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:18:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:18:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:18:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:18:14,456 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:18:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:18:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:18:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:18:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:18:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:18:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:18:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:18:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:18:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:18:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:18:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:18:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:18:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:18:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:18:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:18:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:18:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:18:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:18:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:18:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:18:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:18:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:18:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:18:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:18:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:18:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:18:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:18:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:18:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:18:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:18:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:18:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:18:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:18:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:18:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:18:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:18:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:18:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:18:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:18:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:18:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:18:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:18:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:18:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:18:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:18:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:18:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:18:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:18:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:18:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:18:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:18:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:18:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:18:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:18:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:18:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:18:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:18:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:18:18,757 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:18:18,757 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:18:18,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:18:18 BoogieIcfgContainer [2019-11-07 04:18:18,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:18:18,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:18:18,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:18:18,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:18:18,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:18:12" (1/3) ... [2019-11-07 04:18:18,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5e4e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:18:18, skipping insertion in model container [2019-11-07 04:18:18,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:14" (2/3) ... [2019-11-07 04:18:18,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5e4e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:18:18, skipping insertion in model container [2019-11-07 04:18:18,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:18:18" (3/3) ... [2019-11-07 04:18:18,769 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product13.cil.c [2019-11-07 04:18:18,779 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:18:18,789 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:18:18,801 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:18:18,833 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:18:18,833 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:18:18,833 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:18:18,833 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:18:18,833 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:18:18,834 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:18:18,834 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:18:18,834 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:18:18,873 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states. [2019-11-07 04:18:18,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-11-07 04:18:18,906 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:18,907 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:18,909 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:18,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:18,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1038077492, now seen corresponding path program 1 times [2019-11-07 04:18:18,926 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:18,926 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584483377] [2019-11-07 04:18:18,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:19,640 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584483377] [2019-11-07 04:18:19,641 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:19,641 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:18:19,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42701171] [2019-11-07 04:18:19,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:18:19,652 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:19,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:18:19,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:18:19,670 INFO L87 Difference]: Start difference. First operand 326 states. Second operand 2 states. [2019-11-07 04:18:19,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:19,732 INFO L93 Difference]: Finished difference Result 439 states and 515 transitions. [2019-11-07 04:18:19,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:18:19,734 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 141 [2019-11-07 04:18:19,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:19,752 INFO L225 Difference]: With dead ends: 439 [2019-11-07 04:18:19,752 INFO L226 Difference]: Without dead ends: 291 [2019-11-07 04:18:19,757 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 04:18:19,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2019-11-07 04:18:19,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2019-11-07 04:18:19,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2019-11-07 04:18:19,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 341 transitions. [2019-11-07 04:18:19,845 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 341 transitions. Word has length 141 [2019-11-07 04:18:19,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:19,848 INFO L462 AbstractCegarLoop]: Abstraction has 291 states and 341 transitions. [2019-11-07 04:18:19,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:18:19,848 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 341 transitions. [2019-11-07 04:18:19,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-11-07 04:18:19,853 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:19,853 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:19,853 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:19,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:19,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1582578031, now seen corresponding path program 1 times [2019-11-07 04:18:19,854 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:19,854 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143254606] [2019-11-07 04:18:19,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:20,088 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143254606] [2019-11-07 04:18:20,089 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:20,089 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:18:20,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61184394] [2019-11-07 04:18:20,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:18:20,092 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:20,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:18:20,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:18:20,093 INFO L87 Difference]: Start difference. First operand 291 states and 341 transitions. Second operand 3 states. [2019-11-07 04:18:20,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:20,174 INFO L93 Difference]: Finished difference Result 424 states and 484 transitions. [2019-11-07 04:18:20,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:18:20,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-11-07 04:18:20,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:20,181 INFO L225 Difference]: With dead ends: 424 [2019-11-07 04:18:20,181 INFO L226 Difference]: Without dead ends: 293 [2019-11-07 04:18:20,186 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 04:18:20,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2019-11-07 04:18:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2019-11-07 04:18:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2019-11-07 04:18:20,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 343 transitions. [2019-11-07 04:18:20,235 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 343 transitions. Word has length 142 [2019-11-07 04:18:20,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:20,236 INFO L462 AbstractCegarLoop]: Abstraction has 293 states and 343 transitions. [2019-11-07 04:18:20,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:18:20,236 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 343 transitions. [2019-11-07 04:18:20,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-11-07 04:18:20,243 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:20,244 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:18:20,244 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:20,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:20,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1096482442, now seen corresponding path program 1 times [2019-11-07 04:18:20,246 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:20,246 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875792196] [2019-11-07 04:18:20,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:20,490 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:20,491 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875792196] [2019-11-07 04:18:20,491 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:20,491 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:18:20,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695053654] [2019-11-07 04:18:20,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:18:20,493 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:20,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:18:20,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:18:20,494 INFO L87 Difference]: Start difference. First operand 293 states and 343 transitions. Second operand 3 states. [2019-11-07 04:18:20,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:20,556 INFO L93 Difference]: Finished difference Result 566 states and 690 transitions. [2019-11-07 04:18:20,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:18:20,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-11-07 04:18:20,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:20,564 INFO L225 Difference]: With dead ends: 566 [2019-11-07 04:18:20,564 INFO L226 Difference]: Without dead ends: 331 [2019-11-07 04:18:20,569 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 04:18:20,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2019-11-07 04:18:20,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 330. [2019-11-07 04:18:20,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-11-07 04:18:20,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 408 transitions. [2019-11-07 04:18:20,609 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 408 transitions. Word has length 147 [2019-11-07 04:18:20,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:20,610 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 408 transitions. [2019-11-07 04:18:20,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:18:20,610 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 408 transitions. [2019-11-07 04:18:20,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-07 04:18:20,616 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:20,616 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:18:20,616 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:20,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:20,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1504008346, now seen corresponding path program 1 times [2019-11-07 04:18:20,618 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:20,618 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971170673] [2019-11-07 04:18:20,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:20,923 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:18:20,923 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971170673] [2019-11-07 04:18:20,923 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:20,923 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:18:20,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698183386] [2019-11-07 04:18:20,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:18:20,925 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:20,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:18:20,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:18:20,926 INFO L87 Difference]: Start difference. First operand 330 states and 408 transitions. Second operand 8 states. [2019-11-07 04:18:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:20,993 INFO L93 Difference]: Finished difference Result 447 states and 537 transitions. [2019-11-07 04:18:20,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:18:20,996 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 148 [2019-11-07 04:18:21,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:21,004 INFO L225 Difference]: With dead ends: 447 [2019-11-07 04:18:21,004 INFO L226 Difference]: Without dead ends: 330 [2019-11-07 04:18:21,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:18:21,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-11-07 04:18:21,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-11-07 04:18:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-11-07 04:18:21,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 407 transitions. [2019-11-07 04:18:21,031 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 407 transitions. Word has length 148 [2019-11-07 04:18:21,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:21,033 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 407 transitions. [2019-11-07 04:18:21,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:18:21,033 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 407 transitions. [2019-11-07 04:18:21,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-11-07 04:18:21,041 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:21,042 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:21,042 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:21,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:21,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1349541926, now seen corresponding path program 1 times [2019-11-07 04:18:21,043 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:21,043 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556031771] [2019-11-07 04:18:21,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:18:21,692 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556031771] [2019-11-07 04:18:21,692 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:21,692 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-11-07 04:18:21,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726307690] [2019-11-07 04:18:21,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-07 04:18:21,693 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:21,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-07 04:18:21,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2019-11-07 04:18:21,695 INFO L87 Difference]: Start difference. First operand 330 states and 407 transitions. Second operand 25 states. [2019-11-07 04:18:29,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:29,859 INFO L93 Difference]: Finished difference Result 615 states and 727 transitions. [2019-11-07 04:18:29,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-11-07 04:18:29,860 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 153 [2019-11-07 04:18:29,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:29,867 INFO L225 Difference]: With dead ends: 615 [2019-11-07 04:18:29,867 INFO L226 Difference]: Without dead ends: 474 [2019-11-07 04:18:29,869 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=235, Invalid=2215, Unknown=0, NotChecked=0, Total=2450 [2019-11-07 04:18:29,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-11-07 04:18:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 467. [2019-11-07 04:18:29,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-11-07 04:18:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 558 transitions. [2019-11-07 04:18:29,919 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 558 transitions. Word has length 153 [2019-11-07 04:18:29,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:29,919 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 558 transitions. [2019-11-07 04:18:29,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-07 04:18:29,920 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 558 transitions. [2019-11-07 04:18:29,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-11-07 04:18:29,923 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:29,923 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:29,923 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:29,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:29,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1235438887, now seen corresponding path program 1 times [2019-11-07 04:18:29,924 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:29,924 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768093262] [2019-11-07 04:18:29,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:30,511 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:18:30,511 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768093262] [2019-11-07 04:18:30,513 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:30,513 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-11-07 04:18:30,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552590761] [2019-11-07 04:18:30,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-07 04:18:30,515 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:30,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-07 04:18:30,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2019-11-07 04:18:30,517 INFO L87 Difference]: Start difference. First operand 467 states and 558 transitions. Second operand 21 states. [2019-11-07 04:18:37,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:37,164 INFO L93 Difference]: Finished difference Result 883 states and 1006 transitions. [2019-11-07 04:18:37,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-11-07 04:18:37,170 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 174 [2019-11-07 04:18:37,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:37,176 INFO L225 Difference]: With dead ends: 883 [2019-11-07 04:18:37,176 INFO L226 Difference]: Without dead ends: 635 [2019-11-07 04:18:37,177 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=213, Invalid=1679, Unknown=0, NotChecked=0, Total=1892 [2019-11-07 04:18:37,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2019-11-07 04:18:37,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 618. [2019-11-07 04:18:37,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-11-07 04:18:37,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 722 transitions. [2019-11-07 04:18:37,221 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 722 transitions. Word has length 174 [2019-11-07 04:18:37,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:37,224 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 722 transitions. [2019-11-07 04:18:37,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-07 04:18:37,224 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 722 transitions. [2019-11-07 04:18:37,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-11-07 04:18:37,228 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:37,228 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:37,229 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:37,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:37,229 INFO L82 PathProgramCache]: Analyzing trace with hash -2061482255, now seen corresponding path program 1 times [2019-11-07 04:18:37,229 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:37,229 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581643283] [2019-11-07 04:18:37,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 04:18:38,504 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581643283] [2019-11-07 04:18:38,504 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52513508] [2019-11-07 04:18:38,504 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 04:18:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:39,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 2419 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:18:39,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:18:39,304 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:18:39,305 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:18:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:18:39,691 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1188771125] [2019-11-07 04:18:39,736 INFO L159 IcfgInterpreter]: Started Sifa with 165 locations of interest [2019-11-07 04:18:39,736 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:18:39,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:18:39,751 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:18:39,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs