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_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:50,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:50,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:50,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:50,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:50,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:50,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:50,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:50,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:50,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:50,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:50,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:50,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:50,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:50,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:50,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:50,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:50,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:50,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:50,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:50,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:50,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:50,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:50,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:50,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:50,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:50,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:50,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:50,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:50,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:50,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:50,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:50,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:50,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:50,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:50,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:50,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:50,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:50,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:50,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:50,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:50,186 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 23:09:50,212 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:50,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:50,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:50,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:50,215 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:50,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:50,216 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:50,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:50,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:50,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:50,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:50,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:50,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:50,219 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:50,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:50,219 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:50,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:50,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:50,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:50,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:50,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:50,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:50,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:50,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:50,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:50,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:50,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:50,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:50,222 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 23:09:50,527 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:50,548 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:50,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:50,557 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:50,558 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:50,559 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c [2019-10-13 23:09:50,629 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af46bd97c/980561e72a4d460580f6072f0f518b83/FLAGd713068b0 [2019-10-13 23:09:51,313 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:51,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c [2019-10-13 23:09:51,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af46bd97c/980561e72a4d460580f6072f0f518b83/FLAGd713068b0 [2019-10-13 23:09:51,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af46bd97c/980561e72a4d460580f6072f0f518b83 [2019-10-13 23:09:51,532 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:51,534 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:51,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:51,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:51,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:51,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:51" (1/1) ... [2019-10-13 23:09:51,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166d7fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51, skipping insertion in model container [2019-10-13 23:09:51,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:51" (1/1) ... [2019-10-13 23:09:51,550 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:51,625 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:52,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:52,402 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:52,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:52,658 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:52,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52 WrapperNode [2019-10-13 23:09:52,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:52,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:52,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:52,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:52,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:52,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:52,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:52,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:52,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (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 23:09:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:52,946 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:09:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:52,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:09:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:09:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:09:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:09:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:52,951 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:09:52,952 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:52,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:52,954 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:52,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:52,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:52,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:52,955 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:52,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:52,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:09:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 23:09:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:09:52,956 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:09:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:52,958 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:52,959 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:52,960 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:52,965 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:52,966 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:09:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:52,967 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:52,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:52,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:52,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:52,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:52,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:52,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:52,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:52,971 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:52,971 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:52,971 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:52,971 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:52,971 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:52,973 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:52,973 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:52,973 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:52,973 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:52,973 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:52,974 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:09:52,975 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:09:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:09:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:09:52,976 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:09:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:52,977 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:09:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 23:09:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:09:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:09:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:57,622 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:57,622 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:57,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:57 BoogieIcfgContainer [2019-10-13 23:09:57,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:57,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:57,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:57,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:57,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:51" (1/3) ... [2019-10-13 23:09:57,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe0f668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:57, skipping insertion in model container [2019-10-13 23:09:57,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (2/3) ... [2019-10-13 23:09:57,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe0f668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:57, skipping insertion in model container [2019-10-13 23:09:57,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:57" (3/3) ... [2019-10-13 23:09:57,633 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product31.cil.c [2019-10-13 23:09:57,644 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:57,655 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:57,667 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:57,698 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:57,698 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:57,698 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:57,698 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:57,698 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:57,699 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:57,699 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:57,699 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:57,731 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states. [2019-10-13 23:09:57,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 23:09:57,750 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:57,751 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 23:09:57,753 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:57,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:57,760 INFO L82 PathProgramCache]: Analyzing trace with hash 693826238, now seen corresponding path program 1 times [2019-10-13 23:09:57,770 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:57,770 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433998407] [2019-10-13 23:09:57,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,771 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:58,517 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 23:09:58,517 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433998407] [2019-10-13 23:09:58,518 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:58,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:58,519 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355589443] [2019-10-13 23:09:58,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:58,525 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:58,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:58,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:58,542 INFO L87 Difference]: Start difference. First operand 421 states. Second operand 2 states. [2019-10-13 23:09:58,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:58,611 INFO L93 Difference]: Finished difference Result 650 states and 779 transitions. [2019-10-13 23:09:58,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:58,613 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-10-13 23:09:58,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:58,633 INFO L225 Difference]: With dead ends: 650 [2019-10-13 23:09:58,633 INFO L226 Difference]: Without dead ends: 400 [2019-10-13 23:09:58,640 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 23:09:58,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2019-10-13 23:09:58,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2019-10-13 23:09:58,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2019-10-13 23:09:58,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 475 transitions. [2019-10-13 23:09:58,735 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 475 transitions. Word has length 152 [2019-10-13 23:09:58,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:58,737 INFO L462 AbstractCegarLoop]: Abstraction has 400 states and 475 transitions. [2019-10-13 23:09:58,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:58,738 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 475 transitions. [2019-10-13 23:09:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 23:09:58,743 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:58,743 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] [2019-10-13 23:09:58,744 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:58,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:58,744 INFO L82 PathProgramCache]: Analyzing trace with hash 733417066, now seen corresponding path program 1 times [2019-10-13 23:09:58,745 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:58,745 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141799738] [2019-10-13 23:09:58,745 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,745 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:59,069 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 23:09:59,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141799738] [2019-10-13 23:09:59,070 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:59,070 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:59,071 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828785276] [2019-10-13 23:09:59,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:59,073 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:59,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:59,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:59,074 INFO L87 Difference]: Start difference. First operand 400 states and 475 transitions. Second operand 3 states. [2019-10-13 23:09:59,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:59,132 INFO L93 Difference]: Finished difference Result 635 states and 745 transitions. [2019-10-13 23:09:59,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:59,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-13 23:09:59,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:59,144 INFO L225 Difference]: With dead ends: 635 [2019-10-13 23:09:59,144 INFO L226 Difference]: Without dead ends: 402 [2019-10-13 23:09:59,151 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:59,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-10-13 23:09:59,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2019-10-13 23:09:59,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-10-13 23:09:59,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 477 transitions. [2019-10-13 23:09:59,187 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 477 transitions. Word has length 153 [2019-10-13 23:09:59,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:59,188 INFO L462 AbstractCegarLoop]: Abstraction has 402 states and 477 transitions. [2019-10-13 23:09:59,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:59,188 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 477 transitions. [2019-10-13 23:09:59,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-13 23:09:59,192 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:59,193 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] [2019-10-13 23:09:59,193 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:59,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:59,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1916025706, now seen corresponding path program 1 times [2019-10-13 23:09:59,193 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:59,194 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787349882] [2019-10-13 23:09:59,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:59,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:59,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:59,481 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787349882] [2019-10-13 23:09:59,481 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:59,482 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:59,482 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225771210] [2019-10-13 23:09:59,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:59,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:59,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:59,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:59,487 INFO L87 Difference]: Start difference. First operand 402 states and 477 transitions. Second operand 3 states. [2019-10-13 23:09:59,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:59,546 INFO L93 Difference]: Finished difference Result 786 states and 961 transitions. [2019-10-13 23:09:59,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:59,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-10-13 23:09:59,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:59,550 INFO L225 Difference]: With dead ends: 786 [2019-10-13 23:09:59,550 INFO L226 Difference]: Without dead ends: 442 [2019-10-13 23:09:59,552 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 23:09:59,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2019-10-13 23:09:59,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 441. [2019-10-13 23:09:59,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-10-13 23:09:59,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 545 transitions. [2019-10-13 23:09:59,579 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 545 transitions. Word has length 158 [2019-10-13 23:09:59,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:59,580 INFO L462 AbstractCegarLoop]: Abstraction has 441 states and 545 transitions. [2019-10-13 23:09:59,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:59,580 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 545 transitions. [2019-10-13 23:09:59,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 23:09:59,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:59,584 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] [2019-10-13 23:09:59,586 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:59,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:59,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1761393649, now seen corresponding path program 1 times [2019-10-13 23:09:59,587 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:59,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886887172] [2019-10-13 23:09:59,587 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:59,587 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:59,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:10:00,353 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886887172] [2019-10-13 23:10:00,353 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:00,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-13 23:10:00,354 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798102264] [2019-10-13 23:10:00,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-13 23:10:00,355 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:00,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-13 23:10:00,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2019-10-13 23:10:00,357 INFO L87 Difference]: Start difference. First operand 441 states and 545 transitions. Second operand 25 states. [2019-10-13 23:10:15,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:15,015 INFO L93 Difference]: Finished difference Result 1249 states and 1482 transitions. [2019-10-13 23:10:15,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-10-13 23:10:15,015 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 159 [2019-10-13 23:10:15,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:15,030 INFO L225 Difference]: With dead ends: 1249 [2019-10-13 23:10:15,031 INFO L226 Difference]: Without dead ends: 909 [2019-10-13 23:10:15,034 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=381, Invalid=2811, Unknown=0, NotChecked=0, Total=3192 [2019-10-13 23:10:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2019-10-13 23:10:15,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 899. [2019-10-13 23:10:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2019-10-13 23:10:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1063 transitions. [2019-10-13 23:10:15,142 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1063 transitions. Word has length 159 [2019-10-13 23:10:15,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:15,144 INFO L462 AbstractCegarLoop]: Abstraction has 899 states and 1063 transitions. [2019-10-13 23:10:15,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-13 23:10:15,144 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1063 transitions. [2019-10-13 23:10:15,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 23:10:15,154 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:15,154 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] [2019-10-13 23:10:15,155 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:15,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:15,155 INFO L82 PathProgramCache]: Analyzing trace with hash 415254010, now seen corresponding path program 1 times [2019-10-13 23:10:15,155 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:15,156 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415180176] [2019-10-13 23:10:15,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:15,157 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:15,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:16,460 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:10:16,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415180176] [2019-10-13 23:10:16,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223251114] [2019-10-13 23:10:16,461 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 23:10:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:17,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 2850 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:10:17,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:10:17,198 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 23:10:17,198 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:10:17,455 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 23:10:17,456 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [294195558] [2019-10-13 23:10:17,487 INFO L162 IcfgInterpreter]: Started Sifa with 148 locations of interest [2019-10-13 23:10:17,487 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:10:17,494 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:10:17,502 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:10:17,503 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs