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_spec4_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:16,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:16,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:16,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:16,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:16,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:16,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:16,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:16,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:16,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:16,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:16,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:16,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:16,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:16,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:16,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:16,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:16,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:16,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:16,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:16,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:16,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:16,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:16,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:16,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:16,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:16,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:16,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:16,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:16,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:16,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:16,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:16,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:16,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:16,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:16,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:16,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:16,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:16,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:16,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:16,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:16,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:15:16,304 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:16,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:16,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:16,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:16,306 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:16,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:16,306 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:16,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:16,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:16,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:16,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:16,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:16,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:16,308 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:16,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:16,308 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:16,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:16,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:16,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:16,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:16,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:16,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:16,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:16,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:16,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:16,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:16,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:16,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:16,311 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 [2019-10-15 03:15:16,619 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:16,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:16,635 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:16,637 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:16,638 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:16,638 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product34.cil.c [2019-10-15 03:15:16,707 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a801d4bf0/7a523a35f43f48c1a6204fbe7ffa08b2/FLAGed640629d [2019-10-15 03:15:17,305 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:17,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product34.cil.c [2019-10-15 03:15:17,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a801d4bf0/7a523a35f43f48c1a6204fbe7ffa08b2/FLAGed640629d [2019-10-15 03:15:17,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a801d4bf0/7a523a35f43f48c1a6204fbe7ffa08b2 [2019-10-15 03:15:17,538 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:17,540 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:17,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:17,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:17,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:17,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:17" (1/1) ... [2019-10-15 03:15:17,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2837cd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:17, skipping insertion in model container [2019-10-15 03:15:17,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:17" (1/1) ... [2019-10-15 03:15:17,557 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:17,640 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:18,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:18,463 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:18,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:18,766 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:18,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:18 WrapperNode [2019-10-15 03:15:18,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:18,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:18,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:18,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:18,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:18" (1/1) ... [2019-10-15 03:15:18,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:18" (1/1) ... [2019-10-15 03:15:18,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:18" (1/1) ... [2019-10-15 03:15:18,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:18" (1/1) ... [2019-10-15 03:15:18,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:18" (1/1) ... [2019-10-15 03:15:18,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:18" (1/1) ... [2019-10-15 03:15:18,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:18" (1/1) ... [2019-10-15 03:15:18,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:18,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:18,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:18,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:18,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:15:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:15:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:15:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:15:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:15:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:15:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:15:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:15:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:15:19,055 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:15:19,055 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:19,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:19,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:19,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:19,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:19,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:19,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:19,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:19,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:19,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:19,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:19,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:19,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:19,059 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:19,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:19,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:19,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:19,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:19,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:19,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:19,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:19,060 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:19,061 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:15:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:15:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:19,062 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:15:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:15:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:15:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:15:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:15:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:15:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:15:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:15:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:15:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:15:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:19,094 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:15:19,095 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:15:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:19,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:19,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:19,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:19,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:19,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:19,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:19,097 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:19,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:19,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:19,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:19,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:19,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:19,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:19,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:23,845 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:23,846 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:23,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:23 BoogieIcfgContainer [2019-10-15 03:15:23,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:23,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:23,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:23,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:23,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:17" (1/3) ... [2019-10-15 03:15:23,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34736a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:23, skipping insertion in model container [2019-10-15 03:15:23,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:18" (2/3) ... [2019-10-15 03:15:23,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34736a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:23, skipping insertion in model container [2019-10-15 03:15:23,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:23" (3/3) ... [2019-10-15 03:15:23,857 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product34.cil.c [2019-10-15 03:15:23,867 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:23,877 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:23,889 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:23,919 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:23,919 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:23,919 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:23,919 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:23,919 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:23,919 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:23,920 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:23,920 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:23,950 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states. [2019-10-15 03:15:23,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 03:15:23,968 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:23,969 INFO L380 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] [2019-10-15 03:15:23,971 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:23,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:23,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1156743153, now seen corresponding path program 1 times [2019-10-15 03:15:23,988 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:23,988 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675877197] [2019-10-15 03:15:23,989 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:23,989 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:23,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:24,728 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:24,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675877197] [2019-10-15 03:15:24,733 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:24,734 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:24,734 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625062804] [2019-10-15 03:15:24,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:24,740 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:24,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:24,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:24,758 INFO L87 Difference]: Start difference. First operand 455 states. Second operand 2 states. [2019-10-15 03:15:24,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:24,838 INFO L93 Difference]: Finished difference Result 692 states and 826 transitions. [2019-10-15 03:15:24,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:24,840 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-15 03:15:24,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:24,862 INFO L225 Difference]: With dead ends: 692 [2019-10-15 03:15:24,862 INFO L226 Difference]: Without dead ends: 428 [2019-10-15 03:15:24,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:24,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2019-10-15 03:15:24,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2019-10-15 03:15:24,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2019-10-15 03:15:24,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 507 transitions. [2019-10-15 03:15:24,962 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 507 transitions. Word has length 136 [2019-10-15 03:15:24,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:24,965 INFO L462 AbstractCegarLoop]: Abstraction has 428 states and 507 transitions. [2019-10-15 03:15:24,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:24,965 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 507 transitions. [2019-10-15 03:15:24,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-15 03:15:24,971 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:24,971 INFO L380 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] [2019-10-15 03:15:24,971 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:24,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:24,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1386676786, now seen corresponding path program 1 times [2019-10-15 03:15:24,972 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:24,972 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422159428] [2019-10-15 03:15:24,973 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:24,973 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:24,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:25,161 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:25,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422159428] [2019-10-15 03:15:25,162 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:25,162 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:25,162 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734474595] [2019-10-15 03:15:25,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:25,165 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:25,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:25,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:25,166 INFO L87 Difference]: Start difference. First operand 428 states and 507 transitions. Second operand 3 states. [2019-10-15 03:15:25,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:25,273 INFO L93 Difference]: Finished difference Result 677 states and 794 transitions. [2019-10-15 03:15:25,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:25,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-15 03:15:25,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:25,285 INFO L225 Difference]: With dead ends: 677 [2019-10-15 03:15:25,285 INFO L226 Difference]: Without dead ends: 430 [2019-10-15 03:15:25,291 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:25,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2019-10-15 03:15:25,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2019-10-15 03:15:25,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2019-10-15 03:15:25,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 509 transitions. [2019-10-15 03:15:25,329 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 509 transitions. Word has length 137 [2019-10-15 03:15:25,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:25,330 INFO L462 AbstractCegarLoop]: Abstraction has 430 states and 509 transitions. [2019-10-15 03:15:25,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:25,330 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 509 transitions. [2019-10-15 03:15:25,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-15 03:15:25,333 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:25,334 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:25,334 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:25,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:25,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1337377543, now seen corresponding path program 1 times [2019-10-15 03:15:25,335 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:25,335 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031800472] [2019-10-15 03:15:25,335 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:25,335 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:25,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:25,508 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:25,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031800472] [2019-10-15 03:15:25,509 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:25,509 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:25,509 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513134758] [2019-10-15 03:15:25,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:25,510 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:25,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:25,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:25,511 INFO L87 Difference]: Start difference. First operand 430 states and 509 transitions. Second operand 3 states. [2019-10-15 03:15:25,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:25,573 INFO L93 Difference]: Finished difference Result 844 states and 1028 transitions. [2019-10-15 03:15:25,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:25,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-15 03:15:25,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:25,583 INFO L225 Difference]: With dead ends: 844 [2019-10-15 03:15:25,583 INFO L226 Difference]: Without dead ends: 472 [2019-10-15 03:15:25,586 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:25,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2019-10-15 03:15:25,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 471. [2019-10-15 03:15:25,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2019-10-15 03:15:25,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 580 transitions. [2019-10-15 03:15:25,654 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 580 transitions. Word has length 142 [2019-10-15 03:15:25,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:25,657 INFO L462 AbstractCegarLoop]: Abstraction has 471 states and 580 transitions. [2019-10-15 03:15:25,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 580 transitions. [2019-10-15 03:15:25,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-15 03:15:25,665 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:25,665 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:25,666 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:25,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:25,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1455376811, now seen corresponding path program 1 times [2019-10-15 03:15:25,666 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:25,668 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646098307] [2019-10-15 03:15:25,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:25,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:25,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:26,354 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:26,355 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646098307] [2019-10-15 03:15:26,355 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:26,355 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-15 03:15:26,356 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063624041] [2019-10-15 03:15:26,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-15 03:15:26,357 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:26,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-15 03:15:26,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2019-10-15 03:15:26,359 INFO L87 Difference]: Start difference. First operand 471 states and 580 transitions. Second operand 23 states. [2019-10-15 03:15:39,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:39,619 INFO L93 Difference]: Finished difference Result 1002 states and 1212 transitions. [2019-10-15 03:15:39,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-15 03:15:39,620 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 143 [2019-10-15 03:15:39,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:39,627 INFO L225 Difference]: With dead ends: 1002 [2019-10-15 03:15:39,628 INFO L226 Difference]: Without dead ends: 761 [2019-10-15 03:15:39,630 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=215, Invalid=1855, Unknown=0, NotChecked=0, Total=2070 [2019-10-15 03:15:39,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2019-10-15 03:15:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 752. [2019-10-15 03:15:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2019-10-15 03:15:39,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 918 transitions. [2019-10-15 03:15:39,673 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 918 transitions. Word has length 143 [2019-10-15 03:15:39,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:39,674 INFO L462 AbstractCegarLoop]: Abstraction has 752 states and 918 transitions. [2019-10-15 03:15:39,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-15 03:15:39,674 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 918 transitions. [2019-10-15 03:15:39,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 03:15:39,677 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:39,677 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:39,678 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:39,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:39,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1656692352, now seen corresponding path program 1 times [2019-10-15 03:15:39,679 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:39,679 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531151397] [2019-10-15 03:15:39,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:39,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:39,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:40,200 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:40,200 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531151397] [2019-10-15 03:15:40,200 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:40,201 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-15 03:15:40,201 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388345741] [2019-10-15 03:15:40,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-15 03:15:40,201 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:40,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-15 03:15:40,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2019-10-15 03:15:40,202 INFO L87 Difference]: Start difference. First operand 752 states and 918 transitions. Second operand 25 states. [2019-10-15 03:15:44,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:44,586 INFO L93 Difference]: Finished difference Result 859 states and 1043 transitions. [2019-10-15 03:15:44,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 03:15:44,588 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 149 [2019-10-15 03:15:44,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:44,602 INFO L225 Difference]: With dead ends: 859 [2019-10-15 03:15:44,603 INFO L226 Difference]: Without dead ends: 852 [2019-10-15 03:15:44,605 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=2317, Unknown=0, NotChecked=0, Total=2550 [2019-10-15 03:15:44,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2019-10-15 03:15:44,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 845. [2019-10-15 03:15:44,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2019-10-15 03:15:44,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1028 transitions. [2019-10-15 03:15:44,678 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1028 transitions. Word has length 149 [2019-10-15 03:15:44,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:44,679 INFO L462 AbstractCegarLoop]: Abstraction has 845 states and 1028 transitions. [2019-10-15 03:15:44,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-15 03:15:44,679 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1028 transitions. [2019-10-15 03:15:44,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-10-15 03:15:44,687 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:44,687 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 03:15:44,688 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:44,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:44,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1946845594, now seen corresponding path program 1 times [2019-10-15 03:15:44,688 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:44,689 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511485156] [2019-10-15 03:15:44,689 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:44,689 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:44,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:15:45,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511485156] [2019-10-15 03:15:45,698 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:45,698 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2019-10-15 03:15:45,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86062888] [2019-10-15 03:15:45,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-10-15 03:15:45,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:45,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-10-15 03:15:45,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2019-10-15 03:15:45,702 INFO L87 Difference]: Start difference. First operand 845 states and 1028 transitions. Second operand 30 states.