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_spec8_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:07:50,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:07:50,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:07:50,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:07:50,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:07:50,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:07:50,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:07:50,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:07:50,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:07:50,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:07:50,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:07:50,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:07:50,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:07:50,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:07:50,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:07:50,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:07:50,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:07:50,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:07:50,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:07:50,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:07:50,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:07:50,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:07:50,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:07:50,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:07:50,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:07:50,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:07:50,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:07:50,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:07:50,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:07:50,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:07:50,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:07:50,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:07:50,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:07:50,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:07:50,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:07:50,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:07:50,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:07:50,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:07:50,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:07:50,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:07:50,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:07:50,177 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 [2019-10-07 15:07:50,201 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:07:50,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:07:50,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:07:50,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:07:50,204 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:07:50,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:07:50,204 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:07:50,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:07:50,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:07:50,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:07:50,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:07:50,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:07:50,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:07:50,207 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:07:50,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:07:50,207 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:07:50,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:07:50,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:07:50,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:07:50,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:07:50,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:07:50,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:07:50,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:07:50,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:07:50,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:07:50,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:07:50,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:07:50,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:07:50,210 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 [2019-10-07 15:07:50,493 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:07:50,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:07:50,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:07:50,511 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:07:50,511 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:07:50,512 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product30.cil.c [2019-10-07 15:07:50,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/730cfe806/ed7e6bfcd9a64e75a7bba59da65dea13/FLAG25e759acd [2019-10-07 15:07:51,247 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:07:51,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product30.cil.c [2019-10-07 15:07:51,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/730cfe806/ed7e6bfcd9a64e75a7bba59da65dea13/FLAG25e759acd [2019-10-07 15:07:51,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/730cfe806/ed7e6bfcd9a64e75a7bba59da65dea13 [2019-10-07 15:07:51,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:07:51,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:07:51,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:07:51,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:07:51,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:07:51,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:07:51" (1/1) ... [2019-10-07 15:07:51,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247dfb19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:51, skipping insertion in model container [2019-10-07 15:07:51,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:07:51" (1/1) ... [2019-10-07 15:07:51,449 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:07:51,532 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:07:52,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:07:52,387 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:07:52,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:07:52,672 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:07:52,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:52 WrapperNode [2019-10-07 15:07:52,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:07:52,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:07:52,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:07:52,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:07:52,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:52" (1/1) ... [2019-10-07 15:07:52,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:52" (1/1) ... [2019-10-07 15:07:52,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:52" (1/1) ... [2019-10-07 15:07:52,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:52" (1/1) ... [2019-10-07 15:07:52,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:52" (1/1) ... [2019-10-07 15:07:52,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:52" (1/1) ... [2019-10-07 15:07:52,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:52" (1/1) ... [2019-10-07 15:07:52,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:07:52,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:07:52,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:07:52,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:07:52,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:52" (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 [2019-10-07 15:07:53,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:07:53,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:07:53,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:07:53,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:07:53,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:07:53,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:07:53,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:07:53,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:07:53,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:07:53,061 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:07:53,061 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:07:53,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:07:53,062 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:07:53,062 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:07:53,063 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:07:53,063 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:07:53,065 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:07:53,066 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:07:53,066 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:07:53,066 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:07:53,066 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:07:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:07:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:07:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:07:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:07:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:07:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:07:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 15:07:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 15:07:53,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:07:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:07:53,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:07:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:07:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:07:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:07:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:07:53,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:07:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:07:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:07:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:07:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:07:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:07:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:07:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:07:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:07:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:07:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:07:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:07:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:07:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:07:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:07:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:07:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:07:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:07:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:07:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:07:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:07:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:07:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:07:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:07:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:07:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:07:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:07:53,077 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:07:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:07:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:07:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:07:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:07:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:07:53,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:07:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:07:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:07:53,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:07:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:07:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:07:53,080 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:07:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:07:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:07:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:07:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:07:53,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:07:53,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:07:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:07:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:07:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:07:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:07:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:07:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:07:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:07:53,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:07:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:07:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:07:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:07:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:07:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:07:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:07:53,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:07:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:07:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:07:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:07:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:07:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:07:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:07:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:07:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:07:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:07:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:07:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:07:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:07:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:07:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:07:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:07:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:07:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:07:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:07:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:07:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:07:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:07:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:07:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:07:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:07:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:07:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:07:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:07:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:07:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:07:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:07:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:07:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:07:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:07:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:07:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:07:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:07:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:07:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:07:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:07:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:07:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:07:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:07:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:07:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:07:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:07:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:07:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:07:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:07:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:07:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:07:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:07:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:07:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:07:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:07:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:07:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:07:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:07:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:07:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:07:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:07:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:07:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:07:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:07:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:07:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:07:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:07:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:07:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:07:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:07:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:07:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 15:07:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 15:07:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:07:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:07:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:07:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:07:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:07:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:07:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:07:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:07:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:07:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:07:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:07:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:07:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:07:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:07:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:07:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:07:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:07:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:07:53,121 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:07:53,122 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:07:53,123 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:07:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:07:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:07:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:07:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:07:57,689 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:07:57,690 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:07:57,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:57 BoogieIcfgContainer [2019-10-07 15:07:57,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:07:57,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:07:57,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:07:57,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:07:57,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:07:51" (1/3) ... [2019-10-07 15:07:57,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43729ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:57, skipping insertion in model container [2019-10-07 15:07:57,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:52" (2/3) ... [2019-10-07 15:07:57,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43729ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:57, skipping insertion in model container [2019-10-07 15:07:57,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:57" (3/3) ... [2019-10-07 15:07:57,700 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product30.cil.c [2019-10-07 15:07:57,710 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:07:57,720 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:07:57,732 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:07:57,762 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:07:57,763 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:07:57,763 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:07:57,763 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:07:57,763 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:07:57,763 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:07:57,763 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:07:57,763 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:07:57,793 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states. [2019-10-07 15:07:57,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 15:07:57,810 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:57,811 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 15:07:57,813 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:57,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:57,820 INFO L82 PathProgramCache]: Analyzing trace with hash 994637482, now seen corresponding path program 1 times [2019-10-07 15:07:57,829 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:57,830 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:57,830 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:57,830 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:57,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:07:58,473 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:58,474 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:58,474 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:07:58,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:07:58,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:07:58,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:07:58,494 INFO L87 Difference]: Start difference. First operand 402 states. Second operand 2 states. [2019-10-07 15:07:58,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:58,565 INFO L93 Difference]: Finished difference Result 570 states and 674 transitions. [2019-10-07 15:07:58,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:07:58,566 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-07 15:07:58,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:58,589 INFO L225 Difference]: With dead ends: 570 [2019-10-07 15:07:58,589 INFO L226 Difference]: Without dead ends: 360 [2019-10-07 15:07:58,595 INFO L606 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 [2019-10-07 15:07:58,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2019-10-07 15:07:58,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2019-10-07 15:07:58,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2019-10-07 15:07:58,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 425 transitions. [2019-10-07 15:07:58,675 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 425 transitions. Word has length 125 [2019-10-07 15:07:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:58,678 INFO L462 AbstractCegarLoop]: Abstraction has 360 states and 425 transitions. [2019-10-07 15:07:58,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:07:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 425 transitions. [2019-10-07 15:07:58,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-07 15:07:58,684 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:58,685 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 15:07:58,685 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:58,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:58,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1181110484, now seen corresponding path program 1 times [2019-10-07 15:07:58,686 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:58,686 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:58,686 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:58,686 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:58,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:07:58,957 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:58,957 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:58,958 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:58,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:58,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:58,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:58,964 INFO L87 Difference]: Start difference. First operand 360 states and 425 transitions. Second operand 3 states. [2019-10-07 15:07:59,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:59,045 INFO L93 Difference]: Finished difference Result 555 states and 645 transitions. [2019-10-07 15:07:59,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:59,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-07 15:07:59,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:59,056 INFO L225 Difference]: With dead ends: 555 [2019-10-07 15:07:59,056 INFO L226 Difference]: Without dead ends: 362 [2019-10-07 15:07:59,058 INFO L606 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 [2019-10-07 15:07:59,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2019-10-07 15:07:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2019-10-07 15:07:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2019-10-07 15:07:59,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 427 transitions. [2019-10-07 15:07:59,118 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 427 transitions. Word has length 126 [2019-10-07 15:07:59,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:59,119 INFO L462 AbstractCegarLoop]: Abstraction has 362 states and 427 transitions. [2019-10-07 15:07:59,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:59,121 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 427 transitions. [2019-10-07 15:07:59,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 15:07:59,128 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:59,128 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:07:59,129 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:59,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:59,129 INFO L82 PathProgramCache]: Analyzing trace with hash 151282679, now seen corresponding path program 1 times [2019-10-07 15:07:59,129 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:59,130 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:59,130 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:59,130 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:59,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:07:59,343 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:59,343 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:59,343 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:59,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:59,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:59,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:59,350 INFO L87 Difference]: Start difference. First operand 362 states and 427 transitions. Second operand 3 states. [2019-10-07 15:07:59,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:59,413 INFO L93 Difference]: Finished difference Result 706 states and 861 transitions. [2019-10-07 15:07:59,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:59,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-07 15:07:59,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:59,422 INFO L225 Difference]: With dead ends: 706 [2019-10-07 15:07:59,422 INFO L226 Difference]: Without dead ends: 402 [2019-10-07 15:07:59,426 INFO L606 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 [2019-10-07 15:07:59,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-10-07 15:07:59,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 401. [2019-10-07 15:07:59,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-07 15:07:59,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 495 transitions. [2019-10-07 15:07:59,476 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 495 transitions. Word has length 135 [2019-10-07 15:07:59,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:59,477 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 495 transitions. [2019-10-07 15:07:59,477 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:59,477 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 495 transitions. [2019-10-07 15:07:59,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-07 15:07:59,485 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:59,486 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:07:59,486 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:59,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:59,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1935105111, now seen corresponding path program 1 times [2019-10-07 15:07:59,487 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:59,488 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:59,488 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:59,488 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:59,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:07:59,633 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:59,634 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:59,634 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:59,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:59,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:59,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:59,637 INFO L87 Difference]: Start difference. First operand 401 states and 495 transitions. Second operand 3 states. [2019-10-07 15:07:59,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:59,696 INFO L93 Difference]: Finished difference Result 820 states and 1060 transitions. [2019-10-07 15:07:59,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:59,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2019-10-07 15:07:59,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:59,706 INFO L225 Difference]: With dead ends: 820 [2019-10-07 15:07:59,706 INFO L226 Difference]: Without dead ends: 477 [2019-10-07 15:07:59,708 INFO L606 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 [2019-10-07 15:07:59,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2019-10-07 15:07:59,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 476. [2019-10-07 15:07:59,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2019-10-07 15:07:59,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 625 transitions. [2019-10-07 15:07:59,762 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 625 transitions. Word has length 136 [2019-10-07 15:07:59,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:59,763 INFO L462 AbstractCegarLoop]: Abstraction has 476 states and 625 transitions. [2019-10-07 15:07:59,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 625 transitions. [2019-10-07 15:07:59,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-07 15:07:59,769 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:59,769 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:07:59,769 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:59,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:59,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1231629995, now seen corresponding path program 1 times [2019-10-07 15:07:59,770 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:59,770 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:59,770 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:59,770 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:59,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:08:00,069 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:08:00,069 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:00,069 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:08:00,069 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:08:00,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:08:00,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:08:00,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:08:00,071 INFO L87 Difference]: Start difference. First operand 476 states and 625 transitions. Second operand 3 states. [2019-10-07 15:08:00,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:08:00,123 INFO L93 Difference]: Finished difference Result 719 states and 903 transitions. [2019-10-07 15:08:00,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:08:00,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-10-07 15:08:00,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:08:00,128 INFO L225 Difference]: With dead ends: 719 [2019-10-07 15:08:00,128 INFO L226 Difference]: Without dead ends: 527 [2019-10-07 15:08:00,130 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:08:00,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2019-10-07 15:08:00,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2019-10-07 15:08:00,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2019-10-07 15:08:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 675 transitions. [2019-10-07 15:08:00,170 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 675 transitions. Word has length 139 [2019-10-07 15:08:00,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:08:00,171 INFO L462 AbstractCegarLoop]: Abstraction has 527 states and 675 transitions. [2019-10-07 15:08:00,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:08:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 675 transitions. [2019-10-07 15:08:00,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-07 15:08:00,176 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:08:00,178 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:08:00,178 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:08:00,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:08:00,178 INFO L82 PathProgramCache]: Analyzing trace with hash 303819454, now seen corresponding path program 1 times [2019-10-07 15:08:00,179 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:08:00,179 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:00,179 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:00,179 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:00,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:08:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:08:01,071 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:08:01,071 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:01,072 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:08:01,072 INFO L95 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 [2019-10-07 15:08:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:08:01,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 3382 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:08:01,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:08:01,999 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 15:08:01,999 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:08:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:08:02,748 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:08:02,793 INFO L162 IcfgInterpreter]: Started Sifa with 202 locations of interest [2019-10-07 15:08:02,793 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:08:02,808 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:08:02,820 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:08:02,821 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:09:15,139 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 711 [2019-10-07 15:09:19,420 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 323 DAG size of output: 263 [2019-10-07 15:09:19,871 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 750 [2019-10-07 15:09:20,224 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 750 [2019-10-07 15:09:20,517 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 750 [2019-10-07 15:09:20,735 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 15:09:21,401 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 1052 [2019-10-07 15:09:22,098 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1052 [2019-10-07 15:09:22,752 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1052 [2019-10-07 15:09:22,903 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 15:09:23,548 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 1052 [2019-10-07 15:09:24,863 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1054 DAG size of output: 1052 [2019-10-07 15:09:25,535 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1052 [2019-10-07 15:09:25,690 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 15:09:26,308 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1052 [2019-10-07 15:09:26,952 WARN L191 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 1052 [2019-10-07 15:09:27,628 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1052 [2019-10-07 15:09:27,753 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 15:09:28,370 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1052 [2019-10-07 15:09:28,395 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 574 for LOIs [2019-10-07 15:09:28,791 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:09:28,900 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:09:29,024 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 15:09:29,491 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 977 [2019-10-07 15:09:29,493 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1092 for LOIs [2019-10-07 15:09:30,121 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:30,732 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:31,013 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:09:31,886 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:32,528 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:33,144 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:33,356 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:09:34,231 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:34,942 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:35,549 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:35,780 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:09:36,655 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:37,715 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 1234 DAG size of output: 1092 [2019-10-07 15:09:38,328 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:38,911 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 593 DAG size of output: 591 [2019-10-07 15:09:39,782 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:40,402 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:41,029 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:41,235 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:09:42,118 WARN L191 SmtUtils]: Spent 880.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:42,727 WARN L191 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:43,333 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:43,554 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:09:44,428 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:45,038 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:45,648 WARN L191 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:45,855 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:09:46,743 WARN L191 SmtUtils]: Spent 886.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:47,350 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:47,956 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:48,190 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:09:49,058 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:49,666 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:50,271 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:50,475 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:09:51,357 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:51,968 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:52,587 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:52,792 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:09:53,664 WARN L191 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:54,271 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:54,881 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:55,086 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:09:55,959 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:56,580 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:57,187 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:57,401 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:09:58,275 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:09:58,883 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:59,486 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1092 [2019-10-07 15:09:59,690 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:10:00,565 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:01,489 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:02,373 WARN L191 SmtUtils]: Spent 880.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:02,591 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:10:03,455 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:05,055 WARN L191 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 1234 DAG size of output: 1232 [2019-10-07 15:10:05,923 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:06,142 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:10:07,017 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:07,882 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:08,729 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:08,930 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:10:09,783 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:10,686 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:11,552 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:11,762 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 15:10:12,629 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:14,221 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 1238 DAG size of output: 1234 [2019-10-07 15:10:15,088 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1234 [2019-10-07 15:10:15,301 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 15:10:16,163 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:17,738 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1238 DAG size of output: 1234 [2019-10-07 15:10:18,602 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1234 [2019-10-07 15:10:18,808 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 15:10:19,684 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:21,452 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 1234 [2019-10-07 15:10:22,321 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1234 [2019-10-07 15:10:22,538 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 15:10:23,398 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:24,252 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:25,108 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:25,316 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 15:10:26,183 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1238 [2019-10-07 15:10:27,802 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 1234 DAG size of output: 1232 [2019-10-07 15:10:28,660 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:28,882 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:10:29,744 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:31,925 WARN L191 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 1234 DAG size of output: 1232 [2019-10-07 15:10:32,793 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:33,058 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:10:33,923 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:34,787 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:35,654 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:35,857 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:10:36,721 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:39,101 WARN L191 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 1234 DAG size of output: 1232 [2019-10-07 15:10:39,954 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:40,172 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:10:41,017 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:42,605 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1234 DAG size of output: 1232 [2019-10-07 15:10:43,461 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:43,677 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:10:44,534 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:45,382 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:46,229 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:46,428 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:10:47,278 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1232 [2019-10-07 15:10:48,164 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:49,018 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:49,227 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 15:10:50,083 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:50,958 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:51,810 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:52,021 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 15:10:52,888 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:53,745 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:54,598 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:54,812 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 15:10:55,663 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:57,240 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1243 DAG size of output: 1236 [2019-10-07 15:10:58,103 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:10:58,316 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 15:10:59,167 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 15:11:00,636 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1245 DAG size of output: 1238 [2019-10-07 15:11:01,491 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1238 [2019-10-07 15:11:01,704 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 594 [2019-10-07 15:11:02,545 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1238 [2019-10-07 15:11:02,800 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:11:02,801 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:11:02,811 INFO L168 Benchmark]: Toolchain (without parser) took 191379.36 ms. Allocated memory was 137.9 MB in the beginning and 971.0 MB in the end (delta: 833.1 MB). Free memory was 99.8 MB in the beginning and 162.4 MB in the end (delta: -62.5 MB). Peak memory consumption was 770.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:11:02,812 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:11:02,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1241.76 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 99.6 MB in the beginning and 137.0 MB in the end (delta: -37.3 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:11:02,815 INFO L168 Benchmark]: Boogie Preprocessor took 275.97 ms. Allocated memory is still 202.9 MB. Free memory was 137.0 MB in the beginning and 127.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:11:02,816 INFO L168 Benchmark]: RCFGBuilder took 4740.04 ms. Allocated memory was 202.9 MB in the beginning and 298.8 MB in the end (delta: 95.9 MB). Free memory was 127.8 MB in the beginning and 90.4 MB in the end (delta: 37.4 MB). Peak memory consumption was 133.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:11:02,817 INFO L168 Benchmark]: TraceAbstraction took 185116.71 ms. Allocated memory was 298.8 MB in the beginning and 971.0 MB in the end (delta: 672.1 MB). Free memory was 90.4 MB in the beginning and 162.4 MB in the end (delta: -72.0 MB). Peak memory consumption was 600.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:11:02,823 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1241.76 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 99.6 MB in the beginning and 137.0 MB in the end (delta: -37.3 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 275.97 ms. Allocated memory is still 202.9 MB. Free memory was 137.0 MB in the beginning and 127.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4740.04 ms. Allocated memory was 202.9 MB in the beginning and 298.8 MB in the end (delta: 95.9 MB). Free memory was 127.8 MB in the beginning and 90.4 MB in the end (delta: 37.4 MB). Peak memory consumption was 133.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 185116.71 ms. Allocated memory was 298.8 MB in the beginning and 971.0 MB in the end (delta: 672.1 MB). Free memory was 90.4 MB in the beginning and 162.4 MB in the end (delta: -72.0 MB). Peak memory consumption was 600.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...