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_spec7_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:16:40,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:16:40,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:16:40,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:16:40,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:16:40,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:16:40,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:16:40,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:16:40,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:16:40,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:16:40,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:16:40,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:16:40,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:16:40,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:16:40,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:16:40,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:16:40,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:16:40,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:16:40,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:16:40,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:16:40,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:16:40,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:16:40,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:16:40,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:16:40,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:16:40,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:16:40,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:16:40,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:16:40,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:16:40,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:16:40,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:16:40,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:16:40,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:16:40,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:16:40,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:16:40,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:16:40,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:16:40,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:16:40,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:16:40,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:16:40,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:16:40,275 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 03:16:40,290 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:16:40,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:16:40,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:16:40,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:16:40,292 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:16:40,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:16:40,292 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:16:40,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:16:40,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:16:40,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:16:40,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:16:40,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:16:40,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:16:40,294 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:16:40,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:16:40,294 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:16:40,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:16:40,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:16:40,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:16:40,295 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:16:40,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:16:40,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:16:40,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:16:40,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:16:40,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:16:40,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:16:40,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:16:40,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:16:40,296 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 03:16:40,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:16:40,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:16:40,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:16:40,601 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:16:40,601 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:16:40,602 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product31.cil.c [2019-10-15 03:16:40,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f446b28cf/5eca82c4c6784ed1b2e6c9b4bac5b5ef/FLAGe7e593f5c [2019-10-15 03:16:41,334 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:16:41,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product31.cil.c [2019-10-15 03:16:41,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f446b28cf/5eca82c4c6784ed1b2e6c9b4bac5b5ef/FLAGe7e593f5c [2019-10-15 03:16:41,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f446b28cf/5eca82c4c6784ed1b2e6c9b4bac5b5ef [2019-10-15 03:16:41,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:16:41,481 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:16:41,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:16:41,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:16:41,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:16:41,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:16:41" (1/1) ... [2019-10-15 03:16:41,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f33695a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:41, skipping insertion in model container [2019-10-15 03:16:41,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:16:41" (1/1) ... [2019-10-15 03:16:41,497 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:16:41,594 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:16:42,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:16:42,534 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:16:42,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:16:42,784 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:16:42,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:42 WrapperNode [2019-10-15 03:16:42,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:16:42,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:16:42,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:16:42,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:16:42,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:42" (1/1) ... [2019-10-15 03:16:42,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:42" (1/1) ... [2019-10-15 03:16:42,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:42" (1/1) ... [2019-10-15 03:16:42,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:42" (1/1) ... [2019-10-15 03:16:42,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:42" (1/1) ... [2019-10-15 03:16:42,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:42" (1/1) ... [2019-10-15 03:16:42,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:42" (1/1) ... [2019-10-15 03:16:42,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:16:42,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:16:42,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:16:42,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:16:42,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:42" (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 03:16:43,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:16:43,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:16:43,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:16:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:16:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:16:43,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:16:43,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:16:43,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:16:43,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:16:43,046 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:16:43,046 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:16:43,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:16:43,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:16:43,047 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:16:43,047 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:16:43,047 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:16:43,050 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:16:43,050 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:16:43,050 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:16:43,050 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:16:43,051 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:16:43,051 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:16:43,051 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:16:43,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 03:16:43,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:16:43,051 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:16:43,052 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:16:43,052 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:16:43,052 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:16:43,052 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:16:43,052 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:16:43,053 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:16:43,053 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:16:43,053 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:16:43,053 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:16:43,053 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:16:43,053 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:16:43,054 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:16:43,054 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:16:43,054 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:16:43,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:16:43,054 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:16:43,055 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:16:43,055 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:16:43,055 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:16:43,055 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:16:43,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:16:43,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:16:43,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:16:43,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:16:43,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:16:43,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:16:43,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:16:43,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:16:43,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:16:43,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:16:43,057 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:16:43,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:16:43,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:16:43,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:16:43,058 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:16:43,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:16:43,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:16:43,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:16:43,058 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:16:43,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:16:43,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:16:43,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:16:43,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:16:43,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:16:43,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:16:43,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:16:43,060 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:16:43,060 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 03:16:43,061 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:16:43,061 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:16:43,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:16:43,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:16:43,062 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:16:43,062 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:16:43,062 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:16:43,063 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:16:43,063 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:16:43,063 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:16:43,063 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:16:43,064 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:16:43,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:16:43,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:16:43,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:16:43,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:16:43,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:16:43,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:16:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:16:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:16:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:16:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:16:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:16:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:16:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:16:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:16:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:16:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:16:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:16:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:16:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:16:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:16:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:16:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:16:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:16:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:16:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:16:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:16:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:16:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:16:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:16:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:16:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:16:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:16:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:16:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:16:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:16:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:16:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:16:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:16:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:16:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:16:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:16:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:16:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:16:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:16:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:16:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:16:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:16:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:16:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:16:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:16:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:16:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:16:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:16:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:16:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:16:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:16:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:16:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:16:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:16:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:16:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:16:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:16:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:16:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:16:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:16:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:16:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:16:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:16:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:16:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:16:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:16:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:16:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:16:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:16:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 03:16:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:16:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:16:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:16:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:16:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:16:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:16:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:16:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:16:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:16:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:16:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:16:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:16:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:16:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:16:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:16:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:16:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:16:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:16:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:16:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:16:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:16:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:16:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:16:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:16:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:16:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:16:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:16:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:16:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:16:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:16:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:16:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:16:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:16:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:16:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:16:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:16:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:16:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:16:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:16:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:16:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:16:43,098 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:16:43,098 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:16:43,098 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:16:43,098 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:16:43,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:16:43,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:16:43,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:16:43,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:16:43,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:16:43,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:16:43,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:16:43,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:16:43,099 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:16:43,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:16:43,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:16:43,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:16:43,100 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:16:43,100 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:16:43,100 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:16:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 03:16:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:16:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:16:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:16:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:16:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:16:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:16:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:16:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:16:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:16:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:16:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:16:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:16:43,103 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:16:43,103 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:16:43,103 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:16:43,103 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:16:43,103 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:16:43,103 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:16:43,104 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:16:43,104 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:16:43,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:16:43,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:16:43,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:16:47,565 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:16:47,566 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:16:47,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:47 BoogieIcfgContainer [2019-10-15 03:16:47,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:16:47,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:16:47,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:16:47,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:16:47,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:16:41" (1/3) ... [2019-10-15 03:16:47,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a42278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:47, skipping insertion in model container [2019-10-15 03:16:47,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:42" (2/3) ... [2019-10-15 03:16:47,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a42278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:47, skipping insertion in model container [2019-10-15 03:16:47,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:47" (3/3) ... [2019-10-15 03:16:47,576 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product31.cil.c [2019-10-15 03:16:47,587 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:16:47,598 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:16:47,610 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:16:47,641 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:16:47,641 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:16:47,642 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:16:47,642 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:16:47,642 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:16:47,642 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:16:47,642 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:16:47,642 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:16:47,684 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states. [2019-10-15 03:16:47,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 03:16:47,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:47,703 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] [2019-10-15 03:16:47,705 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:47,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:47,711 INFO L82 PathProgramCache]: Analyzing trace with hash 847249492, now seen corresponding path program 1 times [2019-10-15 03:16:47,718 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:47,719 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493639610] [2019-10-15 03:16:47,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:47,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:47,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:48,377 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 03:16:48,378 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493639610] [2019-10-15 03:16:48,379 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:48,379 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:16:48,379 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423459121] [2019-10-15 03:16:48,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:16:48,385 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:48,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:16:48,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:16:48,403 INFO L87 Difference]: Start difference. First operand 406 states. Second operand 2 states. [2019-10-15 03:16:48,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:48,474 INFO L93 Difference]: Finished difference Result 620 states and 735 transitions. [2019-10-15 03:16:48,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:16:48,476 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-15 03:16:48,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:48,500 INFO L225 Difference]: With dead ends: 620 [2019-10-15 03:16:48,500 INFO L226 Difference]: Without dead ends: 385 [2019-10-15 03:16:48,512 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 03:16:48,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2019-10-15 03:16:48,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2019-10-15 03:16:48,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-10-15 03:16:48,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 454 transitions. [2019-10-15 03:16:48,619 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 454 transitions. Word has length 145 [2019-10-15 03:16:48,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:48,621 INFO L462 AbstractCegarLoop]: Abstraction has 385 states and 454 transitions. [2019-10-15 03:16:48,622 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:16:48,622 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 454 transitions. [2019-10-15 03:16:48,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:16:48,627 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:48,628 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] [2019-10-15 03:16:48,628 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:48,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:48,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1140932619, now seen corresponding path program 1 times [2019-10-15 03:16:48,629 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:48,629 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481296691] [2019-10-15 03:16:48,629 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:48,629 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:48,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:49,024 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 03:16:49,024 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481296691] [2019-10-15 03:16:49,025 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:49,025 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:49,025 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17527939] [2019-10-15 03:16:49,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:49,031 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:49,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:49,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:49,032 INFO L87 Difference]: Start difference. First operand 385 states and 454 transitions. Second operand 3 states. [2019-10-15 03:16:49,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:49,131 INFO L93 Difference]: Finished difference Result 605 states and 703 transitions. [2019-10-15 03:16:49,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:49,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-15 03:16:49,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:49,146 INFO L225 Difference]: With dead ends: 605 [2019-10-15 03:16:49,146 INFO L226 Difference]: Without dead ends: 387 [2019-10-15 03:16:49,151 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 03:16:49,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2019-10-15 03:16:49,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2019-10-15 03:16:49,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2019-10-15 03:16:49,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 456 transitions. [2019-10-15 03:16:49,210 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 456 transitions. Word has length 146 [2019-10-15 03:16:49,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:49,213 INFO L462 AbstractCegarLoop]: Abstraction has 387 states and 456 transitions. [2019-10-15 03:16:49,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:49,213 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 456 transitions. [2019-10-15 03:16:49,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-15 03:16:49,218 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:49,219 INFO L380 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] [2019-10-15 03:16:49,219 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:49,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:49,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1948016164, now seen corresponding path program 1 times [2019-10-15 03:16:49,220 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:49,220 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142937584] [2019-10-15 03:16:49,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:49,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:49,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:49,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142937584] [2019-10-15 03:16:49,455 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:49,455 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:49,455 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30986051] [2019-10-15 03:16:49,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:49,459 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:49,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:49,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:49,460 INFO L87 Difference]: Start difference. First operand 387 states and 456 transitions. Second operand 3 states. [2019-10-15 03:16:49,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:49,516 INFO L93 Difference]: Finished difference Result 756 states and 919 transitions. [2019-10-15 03:16:49,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:49,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2019-10-15 03:16:49,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:49,525 INFO L225 Difference]: With dead ends: 756 [2019-10-15 03:16:49,525 INFO L226 Difference]: Without dead ends: 427 [2019-10-15 03:16:49,527 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 03:16:49,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-10-15 03:16:49,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2019-10-15 03:16:49,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2019-10-15 03:16:49,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 524 transitions. [2019-10-15 03:16:49,561 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 524 transitions. Word has length 151 [2019-10-15 03:16:49,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:49,562 INFO L462 AbstractCegarLoop]: Abstraction has 426 states and 524 transitions. [2019-10-15 03:16:49,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:49,562 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 524 transitions. [2019-10-15 03:16:49,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-15 03:16:49,569 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:49,569 INFO L380 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] [2019-10-15 03:16:49,570 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:49,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:49,570 INFO L82 PathProgramCache]: Analyzing trace with hash 472057370, now seen corresponding path program 1 times [2019-10-15 03:16:49,570 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:49,571 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455973996] [2019-10-15 03:16:49,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:49,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:49,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:50,658 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455973996] [2019-10-15 03:16:50,658 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:50,659 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-15 03:16:50,659 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141732861] [2019-10-15 03:16:50,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 03:16:50,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:50,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 03:16:50,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:16:50,662 INFO L87 Difference]: Start difference. First operand 426 states and 524 transitions. Second operand 28 states. [2019-10-15 03:16:59,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:59,151 INFO L93 Difference]: Finished difference Result 918 states and 1119 transitions. [2019-10-15 03:16:59,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-15 03:16:59,152 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 152 [2019-10-15 03:16:59,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:59,158 INFO L225 Difference]: With dead ends: 918 [2019-10-15 03:16:59,158 INFO L226 Difference]: Without dead ends: 678 [2019-10-15 03:16:59,160 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-15 03:16:59,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2019-10-15 03:16:59,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 666. [2019-10-15 03:16:59,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2019-10-15 03:16:59,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 809 transitions. [2019-10-15 03:16:59,198 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 809 transitions. Word has length 152 [2019-10-15 03:16:59,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:59,199 INFO L462 AbstractCegarLoop]: Abstraction has 666 states and 809 transitions. [2019-10-15 03:16:59,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 03:16:59,199 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 809 transitions. [2019-10-15 03:16:59,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 03:16:59,202 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:59,202 INFO L380 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] [2019-10-15 03:16:59,203 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:59,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:59,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1012068699, now seen corresponding path program 1 times [2019-10-15 03:16:59,203 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:59,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659862743] [2019-10-15 03:16:59,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:59,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:59,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:59,405 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:59,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659862743] [2019-10-15 03:16:59,406 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:59,406 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:16:59,406 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476871064] [2019-10-15 03:16:59,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:16:59,407 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:59,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:16:59,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:16:59,409 INFO L87 Difference]: Start difference. First operand 666 states and 809 transitions. Second operand 10 states. [2019-10-15 03:16:59,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:59,484 INFO L93 Difference]: Finished difference Result 675 states and 820 transitions. [2019-10-15 03:16:59,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:16:59,485 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2019-10-15 03:16:59,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:59,495 INFO L225 Difference]: With dead ends: 675 [2019-10-15 03:16:59,495 INFO L226 Difference]: Without dead ends: 670 [2019-10-15 03:16:59,496 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:16:59,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2019-10-15 03:16:59,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2019-10-15 03:16:59,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2019-10-15 03:16:59,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 813 transitions. [2019-10-15 03:16:59,542 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 813 transitions. Word has length 156 [2019-10-15 03:16:59,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:59,544 INFO L462 AbstractCegarLoop]: Abstraction has 670 states and 813 transitions. [2019-10-15 03:16:59,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:16:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 813 transitions. [2019-10-15 03:16:59,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-15 03:16:59,547 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:59,548 INFO L380 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] [2019-10-15 03:16:59,548 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:59,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:59,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1866390435, now seen corresponding path program 1 times [2019-10-15 03:16:59,549 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:59,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046913005] [2019-10-15 03:16:59,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:59,549 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:59,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:00,011 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:17:00,012 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046913005] [2019-10-15 03:17:00,013 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:00,013 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:17:00,013 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908897132] [2019-10-15 03:17:00,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:17:00,014 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:00,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:17:00,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:17:00,014 INFO L87 Difference]: Start difference. First operand 670 states and 813 transitions. Second operand 14 states. [2019-10-15 03:17:03,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:03,638 INFO L93 Difference]: Finished difference Result 1442 states and 1726 transitions. [2019-10-15 03:17:03,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:17:03,639 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 158 [2019-10-15 03:17:03,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:03,646 INFO L225 Difference]: With dead ends: 1442 [2019-10-15 03:17:03,646 INFO L226 Difference]: Without dead ends: 1225 [2019-10-15 03:17:03,648 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:17:03,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2019-10-15 03:17:03,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1180. [2019-10-15 03:17:03,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2019-10-15 03:17:03,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1417 transitions. [2019-10-15 03:17:03,750 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1417 transitions. Word has length 158 [2019-10-15 03:17:03,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:03,751 INFO L462 AbstractCegarLoop]: Abstraction has 1180 states and 1417 transitions. [2019-10-15 03:17:03,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:17:03,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1417 transitions. [2019-10-15 03:17:03,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-15 03:17:03,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:03,755 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:17:03,756 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:03,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:03,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1127551727, now seen corresponding path program 1 times [2019-10-15 03:17:03,756 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:03,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778598173] [2019-10-15 03:17:03,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:03,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:03,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-15 03:17:04,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778598173] [2019-10-15 03:17:04,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471778307] [2019-10-15 03:17:04,199 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 [2019-10-15 03:17:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:04,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 2760 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:17:04,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:17:04,945 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:17:04,945 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:17:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:17:05,213 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [588973000] [2019-10-15 03:17:05,260 INFO L162 IcfgInterpreter]: Started Sifa with 155 locations of interest [2019-10-15 03:17:05,260 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:17:05,266 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:17:05,274 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:17:05,275 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs