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_spec6_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:48,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:48,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:48,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:48,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:48,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:48,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:48,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:48,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:48,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:48,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:48,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:48,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:48,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:48,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:48,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:48,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:48,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:48,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:48,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:48,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:48,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:48,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:48,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:48,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:48,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:48,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:48,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:48,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:48,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:48,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:48,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:48,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:48,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:48,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:48,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:48,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:48,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:48,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:48,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:48,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:48,545 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 03:15:48,565 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:48,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:48,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:48,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:48,567 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:48,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:48,568 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:48,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:48,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:48,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:48,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:48,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:48,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:48,570 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:48,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:48,571 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:48,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:48,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:48,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:48,572 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:48,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:48,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:48,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:48,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:48,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:48,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:48,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:48,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:48,573 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 03:15:48,844 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:48,861 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:48,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:48,868 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:48,869 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:48,870 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product28.cil.c [2019-10-15 03:15:48,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c16d73b2/950dddd1d11f4202ac76aea028335e0d/FLAGea34c5dca [2019-10-15 03:15:49,604 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:49,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product28.cil.c [2019-10-15 03:15:49,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c16d73b2/950dddd1d11f4202ac76aea028335e0d/FLAGea34c5dca [2019-10-15 03:15:49,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c16d73b2/950dddd1d11f4202ac76aea028335e0d [2019-10-15 03:15:49,788 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:49,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:49,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:49,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:49,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:49,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:49" (1/1) ... [2019-10-15 03:15:49,801 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 03:15:49, skipping insertion in model container [2019-10-15 03:15:49,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:49" (1/1) ... [2019-10-15 03:15:49,812 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:49,916 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:50,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:50,781 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:51,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:51,106 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:51,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:51 WrapperNode [2019-10-15 03:15:51,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:51,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:51,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:51,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:51,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:51" (1/1) ... [2019-10-15 03:15:51,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:51" (1/1) ... [2019-10-15 03:15:51,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:51" (1/1) ... [2019-10-15 03:15:51,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:51" (1/1) ... [2019-10-15 03:15:51,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:51" (1/1) ... [2019-10-15 03:15:51,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:51" (1/1) ... [2019-10-15 03:15:51,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:51" (1/1) ... [2019-10-15 03:15:51,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:51,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:51,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:51,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:51,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:51" (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 03:15:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:51,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:51,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:51,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:51,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:51,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:51,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:51,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:51,410 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:51,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:51,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:51,411 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:51,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:51,412 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:51,414 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:51,414 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:51,414 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:51,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:51,415 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:51,415 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:51,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:51,415 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:51,416 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:51,416 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:51,416 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:51,416 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:15:51,416 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:15:51,416 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:51,417 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:15:51,419 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:15:51,419 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:51,419 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 03:15:51,419 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 03:15:51,419 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:51,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:51,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:51,420 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:51,420 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:51,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:51,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:51,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:51,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:51,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:51,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:51,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:51,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:51,422 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:51,422 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:51,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:51,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:51,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:51,423 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:51,423 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:51,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:51,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:51,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:51,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:51,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:51,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:51,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:51,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:51,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:51,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:51,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:51,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:51,439 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:51,440 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:51,445 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:51,446 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:15:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:15:51,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:15:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:15:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 03:15:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 03:15:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:51,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:51,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:51,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:56,108 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:56,108 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:56,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:56 BoogieIcfgContainer [2019-10-15 03:15:56,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:56,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:56,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:56,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:56,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:49" (1/3) ... [2019-10-15 03:15:56,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2adec209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:56, skipping insertion in model container [2019-10-15 03:15:56,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:51" (2/3) ... [2019-10-15 03:15:56,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2adec209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:56, skipping insertion in model container [2019-10-15 03:15:56,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:56" (3/3) ... [2019-10-15 03:15:56,117 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product28.cil.c [2019-10-15 03:15:56,127 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:56,136 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:56,148 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:56,177 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:56,177 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:56,177 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:56,177 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:56,177 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:56,178 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:56,178 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:56,178 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:56,206 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states. [2019-10-15 03:15:56,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-15 03:15:56,223 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:56,225 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] [2019-10-15 03:15:56,227 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:56,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:56,233 INFO L82 PathProgramCache]: Analyzing trace with hash -547214977, now seen corresponding path program 1 times [2019-10-15 03:15:56,243 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:56,243 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133131192] [2019-10-15 03:15:56,244 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:56,244 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:56,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:56,893 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 03:15:56,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133131192] [2019-10-15 03:15:56,895 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:56,895 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:56,895 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717077877] [2019-10-15 03:15:56,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:56,906 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:56,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:56,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:56,924 INFO L87 Difference]: Start difference. First operand 380 states. Second operand 2 states. [2019-10-15 03:15:56,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:56,987 INFO L93 Difference]: Finished difference Result 533 states and 636 transitions. [2019-10-15 03:15:56,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:56,989 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 147 [2019-10-15 03:15:56,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:57,008 INFO L225 Difference]: With dead ends: 533 [2019-10-15 03:15:57,008 INFO L226 Difference]: Without dead ends: 338 [2019-10-15 03:15:57,015 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 03:15:57,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-10-15 03:15:57,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2019-10-15 03:15:57,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2019-10-15 03:15:57,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 402 transitions. [2019-10-15 03:15:57,102 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 402 transitions. Word has length 147 [2019-10-15 03:15:57,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:57,105 INFO L462 AbstractCegarLoop]: Abstraction has 338 states and 402 transitions. [2019-10-15 03:15:57,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:57,105 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 402 transitions. [2019-10-15 03:15:57,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-15 03:15:57,110 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:57,111 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] [2019-10-15 03:15:57,111 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:57,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:57,112 INFO L82 PathProgramCache]: Analyzing trace with hash -629811066, now seen corresponding path program 1 times [2019-10-15 03:15:57,112 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:57,112 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975630577] [2019-10-15 03:15:57,112 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,112 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:57,431 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 03:15:57,432 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975630577] [2019-10-15 03:15:57,432 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:57,432 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:57,432 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772686297] [2019-10-15 03:15:57,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:57,435 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:57,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:57,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:57,435 INFO L87 Difference]: Start difference. First operand 338 states and 402 transitions. Second operand 3 states. [2019-10-15 03:15:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:57,477 INFO L93 Difference]: Finished difference Result 518 states and 606 transitions. [2019-10-15 03:15:57,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:57,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-10-15 03:15:57,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:57,484 INFO L225 Difference]: With dead ends: 518 [2019-10-15 03:15:57,484 INFO L226 Difference]: Without dead ends: 340 [2019-10-15 03:15:57,487 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 03:15:57,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-10-15 03:15:57,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2019-10-15 03:15:57,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-10-15 03:15:57,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 404 transitions. [2019-10-15 03:15:57,521 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 404 transitions. Word has length 148 [2019-10-15 03:15:57,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:57,522 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 404 transitions. [2019-10-15 03:15:57,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:57,522 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 404 transitions. [2019-10-15 03:15:57,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-15 03:15:57,592 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:57,592 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] [2019-10-15 03:15:57,593 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:57,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:57,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1887986862, now seen corresponding path program 1 times [2019-10-15 03:15:57,594 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:57,594 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127943568] [2019-10-15 03:15:57,594 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,595 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:57,773 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 03:15:57,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127943568] [2019-10-15 03:15:57,774 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:57,774 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:57,775 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077128884] [2019-10-15 03:15:57,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:57,777 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:57,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:57,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:57,778 INFO L87 Difference]: Start difference. First operand 340 states and 404 transitions. Second operand 3 states. [2019-10-15 03:15:57,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:57,839 INFO L93 Difference]: Finished difference Result 660 states and 812 transitions. [2019-10-15 03:15:57,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:57,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-15 03:15:57,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:57,849 INFO L225 Difference]: With dead ends: 660 [2019-10-15 03:15:57,850 INFO L226 Difference]: Without dead ends: 378 [2019-10-15 03:15:57,854 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 03:15:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2019-10-15 03:15:57,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2019-10-15 03:15:57,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-10-15 03:15:57,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 469 transitions. [2019-10-15 03:15:57,912 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 469 transitions. Word has length 153 [2019-10-15 03:15:57,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:57,916 INFO L462 AbstractCegarLoop]: Abstraction has 377 states and 469 transitions. [2019-10-15 03:15:57,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:57,917 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 469 transitions. [2019-10-15 03:15:57,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 03:15:57,920 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:57,920 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] [2019-10-15 03:15:57,923 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:57,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:57,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1141184974, now seen corresponding path program 1 times [2019-10-15 03:15:57,924 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:57,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456251821] [2019-10-15 03:15:57,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:58,539 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 03:15:58,540 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456251821] [2019-10-15 03:15:58,540 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:58,540 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 03:15:58,541 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988648852] [2019-10-15 03:15:58,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 03:15:58,545 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:58,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 03:15:58,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-15 03:15:58,547 INFO L87 Difference]: Start difference. First operand 377 states and 469 transitions. Second operand 24 states. [2019-10-15 03:16:05,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:05,538 INFO L93 Difference]: Finished difference Result 970 states and 1169 transitions. [2019-10-15 03:16:05,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-15 03:16:05,538 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 154 [2019-10-15 03:16:05,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:05,545 INFO L225 Difference]: With dead ends: 970 [2019-10-15 03:16:05,545 INFO L226 Difference]: Without dead ends: 719 [2019-10-15 03:16:05,548 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2019-10-15 03:16:05,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2019-10-15 03:16:05,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 710. [2019-10-15 03:16:05,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710 states. [2019-10-15 03:16:05,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 847 transitions. [2019-10-15 03:16:05,595 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 847 transitions. Word has length 154 [2019-10-15 03:16:05,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:05,596 INFO L462 AbstractCegarLoop]: Abstraction has 710 states and 847 transitions. [2019-10-15 03:16:05,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-15 03:16:05,596 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 847 transitions. [2019-10-15 03:16:05,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 03:16:05,602 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:05,603 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, 1, 1] [2019-10-15 03:16:05,603 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:05,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:05,603 INFO L82 PathProgramCache]: Analyzing trace with hash 361186936, now seen corresponding path program 1 times [2019-10-15 03:16:05,603 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:05,604 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627860101] [2019-10-15 03:16:05,604 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,604 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:06,202 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:16:06,203 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627860101] [2019-10-15 03:16:06,203 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423309465] [2019-10-15 03:16:06,204 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 03:16:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:06,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:16:06,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:16:06,870 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:06,871 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:16:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:07,105 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [138378959] [2019-10-15 03:16:07,135 INFO L162 IcfgInterpreter]: Started Sifa with 145 locations of interest [2019-10-15 03:16:07,136 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:16:07,143 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:16:07,151 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:16:07,152 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs