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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:11:57,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:11:57,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:11:57,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:11:57,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:11:57,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:11:57,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:11:57,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:11:57,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:11:57,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:11:57,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:11:57,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:11:57,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:11:57,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:11:57,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:11:57,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:11:57,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:11:57,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:11:57,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:11:57,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:11:57,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:11:57,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:11:57,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:11:57,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:11:57,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:11:57,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:11:57,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:11:57,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:11:57,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:11:57,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:11:57,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:11:57,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:11:57,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:11:57,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:11:57,432 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:11:57,432 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:11:57,433 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:11:57,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:11:57,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:11:57,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:11:57,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:11:57,436 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 [2019-10-13 23:11:57,451 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:11:57,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:11:57,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:11:57,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:11:57,453 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:11:57,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:11:57,454 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:11:57,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:11:57,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:11:57,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:11:57,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:11:57,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:11:57,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:11:57,455 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:11:57,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:11:57,456 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:11:57,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:11:57,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:11:57,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:11:57,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:11:57,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:11:57,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:11:57,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:11:57,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:11:57,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:11:57,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:11:57,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:11:57,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:11:57,458 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 [2019-10-13 23:11:57,790 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:11:57,814 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:11:57,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:11:57,820 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:11:57,820 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:11:57,821 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product28.cil.c [2019-10-13 23:11:57,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99555d2b4/d9d28092cf424f9990f1df661d43b129/FLAG3c2a4d7dd [2019-10-13 23:11:58,531 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:11:58,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product28.cil.c [2019-10-13 23:11:58,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99555d2b4/d9d28092cf424f9990f1df661d43b129/FLAG3c2a4d7dd [2019-10-13 23:11:58,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99555d2b4/d9d28092cf424f9990f1df661d43b129 [2019-10-13 23:11:58,766 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:11:58,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:11:58,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:58,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:11:58,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:11:58,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:58" (1/1) ... [2019-10-13 23:11:58,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c3ebb7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:58, skipping insertion in model container [2019-10-13 23:11:58,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:58" (1/1) ... [2019-10-13 23:11:58,781 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:11:58,852 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:11:59,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:59,600 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:11:59,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:59,854 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:11:59,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:59 WrapperNode [2019-10-13 23:11:59,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:59,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:11:59,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:11:59,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:11:59,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:59" (1/1) ... [2019-10-13 23:11:59,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:59" (1/1) ... [2019-10-13 23:11:59,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:59" (1/1) ... [2019-10-13 23:11:59,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:59" (1/1) ... [2019-10-13 23:11:59,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:59" (1/1) ... [2019-10-13 23:12:00,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:59" (1/1) ... [2019-10-13 23:12:00,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:59" (1/1) ... [2019-10-13 23:12:00,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:00,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:00,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:00,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:00,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:59" (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 [2019-10-13 23:12:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:00,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:00,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:00,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:00,142 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 23:12:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:12:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:00,145 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:00,145 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:00,146 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:00,146 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:00,146 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:00,146 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:12:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:12:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:12:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:00,151 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:00,152 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:00,153 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:00,153 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:00,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:00,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:00,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:00,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:00,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:00,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:00,154 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:00,155 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:00,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:00,155 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:00,155 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:00,155 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:00,156 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:00,156 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:00,156 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 23:12:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:00,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:00,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:00,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:00,159 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:00,160 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:00,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:00,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:00,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:00,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:00,161 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:00,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:00,161 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:00,161 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:00,161 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:00,162 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:00,163 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:00,163 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:00,163 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:00,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:00,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:00,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:00,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:00,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:00,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:00,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:00,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:00,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:00,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:00,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:00,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:00,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:00,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:00,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:00,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:00,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:00,170 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:00,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:00,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:00,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:00,173 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:00,174 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:00,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:00,176 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 23:12:00,177 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:12:00,179 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:00,189 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:00,189 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:00,189 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:00,189 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:00,189 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:00,189 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:00,190 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:00,190 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:00,190 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:00,190 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:00,190 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:00,190 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:00,190 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:00,190 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:00,191 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:00,191 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:00,191 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:00,191 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:00,192 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:00,192 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:00,192 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:12:00,192 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:12:00,192 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:12:00,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 23:12:00,192 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:04,783 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:04,784 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:04,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:04 BoogieIcfgContainer [2019-10-13 23:12:04,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:04,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:04,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:04,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:04,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:11:58" (1/3) ... [2019-10-13 23:12:04,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f01bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:04, skipping insertion in model container [2019-10-13 23:12:04,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:59" (2/3) ... [2019-10-13 23:12:04,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f01bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:04, skipping insertion in model container [2019-10-13 23:12:04,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:04" (3/3) ... [2019-10-13 23:12:04,794 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product28.cil.c [2019-10-13 23:12:04,804 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:04,815 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:04,827 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:04,858 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:04,858 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:04,858 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:04,859 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:04,859 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:04,859 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:04,859 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:04,859 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:04,890 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2019-10-13 23:12:04,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-13 23:12:04,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:04,962 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] [2019-10-13 23:12:04,965 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:04,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:04,973 INFO L82 PathProgramCache]: Analyzing trace with hash 152531144, now seen corresponding path program 1 times [2019-10-13 23:12:04,983 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:04,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508303681] [2019-10-13 23:12:04,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:04,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:04,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:05,589 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:05,591 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508303681] [2019-10-13 23:12:05,592 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:05,592 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:12:05,593 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400813802] [2019-10-13 23:12:05,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:12:05,602 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:05,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:12:05,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:05,620 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 2 states. [2019-10-13 23:12:05,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:05,738 INFO L93 Difference]: Finished difference Result 511 states and 608 transitions. [2019-10-13 23:12:05,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:12:05,740 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-13 23:12:05,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:05,778 INFO L225 Difference]: With dead ends: 511 [2019-10-13 23:12:05,778 INFO L226 Difference]: Without dead ends: 327 [2019-10-13 23:12:05,792 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 [2019-10-13 23:12:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-10-13 23:12:05,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2019-10-13 23:12:05,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2019-10-13 23:12:05,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 387 transitions. [2019-10-13 23:12:05,871 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 387 transitions. Word has length 145 [2019-10-13 23:12:05,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:05,873 INFO L462 AbstractCegarLoop]: Abstraction has 327 states and 387 transitions. [2019-10-13 23:12:05,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:12:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 387 transitions. [2019-10-13 23:12:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:12:05,880 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:05,881 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] [2019-10-13 23:12:05,881 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:05,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:05,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1833339352, now seen corresponding path program 1 times [2019-10-13 23:12:05,882 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:05,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646880215] [2019-10-13 23:12:05,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:05,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:05,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:06,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646880215] [2019-10-13 23:12:06,212 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:06,212 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:06,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507574139] [2019-10-13 23:12:06,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:06,219 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:06,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:06,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:06,220 INFO L87 Difference]: Start difference. First operand 327 states and 387 transitions. Second operand 3 states. [2019-10-13 23:12:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:06,292 INFO L93 Difference]: Finished difference Result 496 states and 576 transitions. [2019-10-13 23:12:06,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:06,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-13 23:12:06,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:06,301 INFO L225 Difference]: With dead ends: 496 [2019-10-13 23:12:06,302 INFO L226 Difference]: Without dead ends: 329 [2019-10-13 23:12:06,305 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 [2019-10-13 23:12:06,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2019-10-13 23:12:06,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2019-10-13 23:12:06,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2019-10-13 23:12:06,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 389 transitions. [2019-10-13 23:12:06,372 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 389 transitions. Word has length 146 [2019-10-13 23:12:06,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:06,373 INFO L462 AbstractCegarLoop]: Abstraction has 329 states and 389 transitions. [2019-10-13 23:12:06,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:06,373 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 389 transitions. [2019-10-13 23:12:06,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-13 23:12:06,380 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:06,384 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] [2019-10-13 23:12:06,384 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:06,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:06,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1056394090, now seen corresponding path program 1 times [2019-10-13 23:12:06,385 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:06,385 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541184772] [2019-10-13 23:12:06,385 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:06,385 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:06,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:06,672 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:06,672 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541184772] [2019-10-13 23:12:06,672 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:06,673 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:06,673 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144936956] [2019-10-13 23:12:06,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:06,674 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:06,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:06,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:06,675 INFO L87 Difference]: Start difference. First operand 329 states and 389 transitions. Second operand 3 states. [2019-10-13 23:12:06,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:06,726 INFO L93 Difference]: Finished difference Result 638 states and 782 transitions. [2019-10-13 23:12:06,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:06,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2019-10-13 23:12:06,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:06,732 INFO L225 Difference]: With dead ends: 638 [2019-10-13 23:12:06,732 INFO L226 Difference]: Without dead ends: 367 [2019-10-13 23:12:06,734 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 [2019-10-13 23:12:06,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2019-10-13 23:12:06,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 366. [2019-10-13 23:12:06,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2019-10-13 23:12:06,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 454 transitions. [2019-10-13 23:12:06,762 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 454 transitions. Word has length 151 [2019-10-13 23:12:06,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:06,763 INFO L462 AbstractCegarLoop]: Abstraction has 366 states and 454 transitions. [2019-10-13 23:12:06,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:06,764 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 454 transitions. [2019-10-13 23:12:06,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 23:12:06,768 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:06,769 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] [2019-10-13 23:12:06,769 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:06,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:06,770 INFO L82 PathProgramCache]: Analyzing trace with hash -308330453, now seen corresponding path program 1 times [2019-10-13 23:12:06,770 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:06,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783721653] [2019-10-13 23:12:06,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:06,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:06,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:07,559 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:07,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783721653] [2019-10-13 23:12:07,560 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:07,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 23:12:07,560 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348746898] [2019-10-13 23:12:07,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 23:12:07,561 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:07,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 23:12:07,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:12:07,562 INFO L87 Difference]: Start difference. First operand 366 states and 454 transitions. Second operand 28 states. [2019-10-13 23:12:14,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:14,921 INFO L93 Difference]: Finished difference Result 752 states and 925 transitions. [2019-10-13 23:12:14,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-13 23:12:14,922 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 152 [2019-10-13 23:12:14,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:14,929 INFO L225 Difference]: With dead ends: 752 [2019-10-13 23:12:14,929 INFO L226 Difference]: Without dead ends: 565 [2019-10-13 23:12:14,931 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-13 23:12:14,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2019-10-13 23:12:14,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 553. [2019-10-13 23:12:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2019-10-13 23:12:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 677 transitions. [2019-10-13 23:12:14,993 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 677 transitions. Word has length 152 [2019-10-13 23:12:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:14,994 INFO L462 AbstractCegarLoop]: Abstraction has 553 states and 677 transitions. [2019-10-13 23:12:14,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 23:12:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 677 transitions. [2019-10-13 23:12:14,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 23:12:14,998 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:14,998 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] [2019-10-13 23:12:14,999 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:14,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:14,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1246151675, now seen corresponding path program 1 times [2019-10-13 23:12:14,999 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:14,999 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467153206] [2019-10-13 23:12:15,000 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:15,000 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:15,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:15,202 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:15,202 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467153206] [2019-10-13 23:12:15,202 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:15,203 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:12:15,203 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830040235] [2019-10-13 23:12:15,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:12:15,204 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:15,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:12:15,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:12:15,204 INFO L87 Difference]: Start difference. First operand 553 states and 677 transitions. Second operand 10 states. [2019-10-13 23:12:15,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:15,271 INFO L93 Difference]: Finished difference Result 562 states and 687 transitions. [2019-10-13 23:12:15,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:12:15,271 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2019-10-13 23:12:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:15,277 INFO L225 Difference]: With dead ends: 562 [2019-10-13 23:12:15,277 INFO L226 Difference]: Without dead ends: 557 [2019-10-13 23:12:15,278 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 [2019-10-13 23:12:15,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-10-13 23:12:15,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2019-10-13 23:12:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2019-10-13 23:12:15,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 680 transitions. [2019-10-13 23:12:15,415 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 680 transitions. Word has length 156 [2019-10-13 23:12:15,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:15,416 INFO L462 AbstractCegarLoop]: Abstraction has 557 states and 680 transitions. [2019-10-13 23:12:15,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:12:15,416 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 680 transitions. [2019-10-13 23:12:15,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-13 23:12:15,419 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:15,419 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] [2019-10-13 23:12:15,420 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:15,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:15,420 INFO L82 PathProgramCache]: Analyzing trace with hash -593879677, now seen corresponding path program 1 times [2019-10-13 23:12:15,420 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:15,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313053053] [2019-10-13 23:12:15,421 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:15,421 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:15,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:15,753 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:15,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313053053] [2019-10-13 23:12:15,754 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:15,755 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:12:15,755 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970552446] [2019-10-13 23:12:15,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:12:15,756 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:15,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:12:15,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:12:15,756 INFO L87 Difference]: Start difference. First operand 557 states and 680 transitions. Second operand 14 states. [2019-10-13 23:12:18,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:18,700 INFO L93 Difference]: Finished difference Result 1165 states and 1401 transitions. [2019-10-13 23:12:18,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:12:18,701 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 158 [2019-10-13 23:12:18,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:18,709 INFO L225 Difference]: With dead ends: 1165 [2019-10-13 23:12:18,710 INFO L226 Difference]: Without dead ends: 1001 [2019-10-13 23:12:18,711 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 [2019-10-13 23:12:18,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2019-10-13 23:12:18,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 956. [2019-10-13 23:12:18,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 956 states. [2019-10-13 23:12:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1154 transitions. [2019-10-13 23:12:18,776 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1154 transitions. Word has length 158 [2019-10-13 23:12:18,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:18,779 INFO L462 AbstractCegarLoop]: Abstraction has 956 states and 1154 transitions. [2019-10-13 23:12:18,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:12:18,780 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1154 transitions. [2019-10-13 23:12:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 23:12:18,783 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:18,783 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] [2019-10-13 23:12:18,784 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:18,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:18,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1027905274, now seen corresponding path program 1 times [2019-10-13 23:12:18,784 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:18,784 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133107616] [2019-10-13 23:12:18,785 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:18,785 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:18,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:19,317 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 23:12:19,322 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133107616] [2019-10-13 23:12:19,323 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470031994] [2019-10-13 23:12:19,323 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 [2019-10-13 23:12:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:20,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 2554 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:12:20,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:12:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:20,134 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:12:20,410 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:20,410 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [972225223] [2019-10-13 23:12:20,444 INFO L162 IcfgInterpreter]: Started Sifa with 155 locations of interest [2019-10-13 23:12:20,444 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:12:20,453 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:12:20,462 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:12:20,462 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs