/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:19:59,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:19:59,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:19:59,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:19:59,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:19:59,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:19:59,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:19:59,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:19:59,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:19:59,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:19:59,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:19:59,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:19:59,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:19:59,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:19:59,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:19:59,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:19:59,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:19:59,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:19:59,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:19:59,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:19:59,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:19:59,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:19:59,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:19:59,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:19:59,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:19:59,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:19:59,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:19:59,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:19:59,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:19:59,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:19:59,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:19:59,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:19:59,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:19:59,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:19:59,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:19:59,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:19:59,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:19:59,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:19:59,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:19:59,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:19:59,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:19:59,285 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 [2019-11-07 04:19:59,306 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:19:59,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:19:59,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:19:59,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:19:59,309 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:19:59,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:19:59,309 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:19:59,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:19:59,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:19:59,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:19:59,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:19:59,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:19:59,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:19:59,312 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:19:59,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:19:59,313 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:19:59,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:19:59,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:19:59,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:19:59,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:19:59,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:19:59,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:19:59,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:19:59,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:19:59,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:19:59,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:19:59,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:19:59,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:19:59,315 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 [2019-11-07 04:19:59,592 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:19:59,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:19:59,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:19:59,610 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:19:59,610 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:19:59,611 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product18.cil.c [2019-11-07 04:19:59,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3b349dc/d871e9cda6de451ab2fc8cbcc012b60c/FLAGaafddd826 [2019-11-07 04:20:00,293 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:20:00,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product18.cil.c [2019-11-07 04:20:00,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3b349dc/d871e9cda6de451ab2fc8cbcc012b60c/FLAGaafddd826 [2019-11-07 04:20:00,525 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3b349dc/d871e9cda6de451ab2fc8cbcc012b60c [2019-11-07 04:20:00,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:20:00,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:20:00,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:20:00,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:20:00,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:20:00,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:00" (1/1) ... [2019-11-07 04:20:00,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74348c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:00, skipping insertion in model container [2019-11-07 04:20:00,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:00" (1/1) ... [2019-11-07 04:20:00,588 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:20:00,742 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:20:01,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:20:01,583 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:20:01,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:20:01,798 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:20:01,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:01 WrapperNode [2019-11-07 04:20:01,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:20:01,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:20:01,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:20:01,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:20:01,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:01" (1/1) ... [2019-11-07 04:20:01,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:01" (1/1) ... [2019-11-07 04:20:01,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:01" (1/1) ... [2019-11-07 04:20:01,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:01" (1/1) ... [2019-11-07 04:20:01,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:01" (1/1) ... [2019-11-07 04:20:01,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:01" (1/1) ... [2019-11-07 04:20:01,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:01" (1/1) ... [2019-11-07 04:20:01,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:20:01,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:20:01,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:20:01,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:20:01,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:01" (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 [2019-11-07 04:20:02,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:20:02,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:20:02,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:20:02,056 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:20:02,056 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:20:02,057 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:20:02,057 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:20:02,057 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:20:02,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:20:02,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:20:02,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:20:02,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:20:02,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:20:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:20:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:20:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:20:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:20:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:20:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:20:02,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:20:02,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:20:02,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:20:02,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:20:02,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:20:02,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:20:02,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:20:02,062 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:20:02,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:20:02,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:20:02,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:20:02,063 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:20:02,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:20:02,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:20:02,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:20:02,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:20:02,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:20:02,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:20:02,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:20:02,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:20:02,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:20:02,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:20:02,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:20:02,065 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:20:02,065 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:20:02,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:20:02,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:20:02,066 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:20:02,066 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:20:02,066 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:20:02,066 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:20:02,067 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:20:02,067 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:20:02,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:20:02,067 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:20:02,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:20:02,068 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:20:02,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:20:02,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:20:02,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:20:02,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:20:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:20:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:20:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:20:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:20:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:20:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:20:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:20:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-11-07 04:20:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:20:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:20:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:20:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:20:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:20:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:20:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:20:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:20:02,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:20:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:20:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:20:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:20:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:20:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:20:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:20:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:20:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:20:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:20:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:20:02,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:20:02,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:20:02,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:20:02,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:20:02,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:20:02,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:20:02,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:20:02,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:20:02,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:20:02,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:20:02,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:20:02,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:20:02,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:20:02,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:20:02,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:20:02,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 04:20:02,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 04:20:02,077 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:20:02,078 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 04:20:02,078 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:20:02,078 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:20:02,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:20:02,078 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:20:02,079 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:20:02,079 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:20:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:20:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:20:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:20:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:20:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:20:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:20:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:20:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:20:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:20:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:20:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:20:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:20:02,082 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:20:02,082 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:20:02,082 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:20:02,082 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:20:02,082 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:20:02,082 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:20:02,083 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:20:02,083 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:20:02,083 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:20:02,083 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:20:02,083 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:20:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:20:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:20:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:20:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:20:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:20:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:20:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:20:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:20:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:20:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:20:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:20:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:20:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:20:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:20:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:20:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:20:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:20:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:20:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:20:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:20:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:20:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:20:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:20:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:20:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:20:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:20:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:20:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:20:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:20:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:20:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:20:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:20:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:20:02,089 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:20:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:20:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:20:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:20:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:20:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:20:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:20:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:20:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:20:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:20:02,091 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:20:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:20:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:20:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:20:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:20:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:20:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:20:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:20:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:20:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:20:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:20:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:20:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:20:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:20:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:20:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:20:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:20:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:20:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:20:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:20:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:20:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:20:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:20:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:20:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:20:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:20:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:20:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:20:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:20:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:20:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:20:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:20:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:20:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:20:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:20:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:20:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 04:20:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:20:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-11-07 04:20:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:20:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 04:20:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:20:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:20:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:20:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:20:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:20:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:20:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:20:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:20:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:20:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:20:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:20:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:20:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:20:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:20:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 04:20:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:20:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:20:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:20:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:20:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:20:06,861 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:20:06,862 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:20:06,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:20:06 BoogieIcfgContainer [2019-11-07 04:20:06,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:20:06,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:20:06,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:20:06,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:20:06,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:20:00" (1/3) ... [2019-11-07 04:20:06,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7cb948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:20:06, skipping insertion in model container [2019-11-07 04:20:06,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:01" (2/3) ... [2019-11-07 04:20:06,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7cb948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:20:06, skipping insertion in model container [2019-11-07 04:20:06,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:20:06" (3/3) ... [2019-11-07 04:20:06,872 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product18.cil.c [2019-11-07 04:20:06,882 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:20:06,892 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:20:06,904 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:20:06,945 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:20:06,945 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:20:06,945 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:20:06,945 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:20:06,946 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:20:06,946 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:20:06,946 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:20:06,949 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:20:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states. [2019-11-07 04:20:06,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-11-07 04:20:06,994 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:06,995 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:06,998 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:07,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:07,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1083958016, now seen corresponding path program 1 times [2019-11-07 04:20:07,014 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:07,015 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120651604] [2019-11-07 04:20:07,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:07,707 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:07,707 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120651604] [2019-11-07 04:20:07,708 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:07,709 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:20:07,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253891470] [2019-11-07 04:20:07,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:20:07,715 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:07,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:20:07,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:20:07,731 INFO L87 Difference]: Start difference. First operand 361 states. Second operand 2 states. [2019-11-07 04:20:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:07,818 INFO L93 Difference]: Finished difference Result 498 states and 589 transitions. [2019-11-07 04:20:07,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:20:07,821 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 134 [2019-11-07 04:20:07,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:07,846 INFO L225 Difference]: With dead ends: 498 [2019-11-07 04:20:07,846 INFO L226 Difference]: Without dead ends: 324 [2019-11-07 04:20:07,853 INFO L630 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 [2019-11-07 04:20:07,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-11-07 04:20:07,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2019-11-07 04:20:07,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2019-11-07 04:20:07,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 381 transitions. [2019-11-07 04:20:07,939 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 381 transitions. Word has length 134 [2019-11-07 04:20:07,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:07,944 INFO L462 AbstractCegarLoop]: Abstraction has 324 states and 381 transitions. [2019-11-07 04:20:07,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:20:07,944 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 381 transitions. [2019-11-07 04:20:07,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-11-07 04:20:07,955 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:07,955 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:07,955 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:07,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:07,956 INFO L82 PathProgramCache]: Analyzing trace with hash 906778733, now seen corresponding path program 1 times [2019-11-07 04:20:07,956 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:07,956 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526877919] [2019-11-07 04:20:07,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:08,245 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:08,246 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526877919] [2019-11-07 04:20:08,246 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:08,246 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:08,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487096031] [2019-11-07 04:20:08,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:08,251 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:08,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:08,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:08,252 INFO L87 Difference]: Start difference. First operand 324 states and 381 transitions. Second operand 3 states. [2019-11-07 04:20:08,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:08,327 INFO L93 Difference]: Finished difference Result 483 states and 557 transitions. [2019-11-07 04:20:08,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:08,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-11-07 04:20:08,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:08,337 INFO L225 Difference]: With dead ends: 483 [2019-11-07 04:20:08,338 INFO L226 Difference]: Without dead ends: 326 [2019-11-07 04:20:08,343 INFO L630 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 [2019-11-07 04:20:08,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-11-07 04:20:08,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2019-11-07 04:20:08,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-11-07 04:20:08,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 383 transitions. [2019-11-07 04:20:08,373 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 383 transitions. Word has length 135 [2019-11-07 04:20:08,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:08,374 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 383 transitions. [2019-11-07 04:20:08,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:08,374 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 383 transitions. [2019-11-07 04:20:08,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-11-07 04:20:08,377 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:08,378 INFO L410 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, 1, 1, 1, 1, 1] [2019-11-07 04:20:08,378 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:08,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:08,378 INFO L82 PathProgramCache]: Analyzing trace with hash 2025946945, now seen corresponding path program 1 times [2019-11-07 04:20:08,378 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:08,379 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942670461] [2019-11-07 04:20:08,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:08,535 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:08,536 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942670461] [2019-11-07 04:20:08,536 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:08,536 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:08,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844904327] [2019-11-07 04:20:08,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:08,538 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:08,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:08,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:08,538 INFO L87 Difference]: Start difference. First operand 326 states and 383 transitions. Second operand 3 states. [2019-11-07 04:20:08,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:08,589 INFO L93 Difference]: Finished difference Result 634 states and 773 transitions. [2019-11-07 04:20:08,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:08,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-11-07 04:20:08,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:08,595 INFO L225 Difference]: With dead ends: 634 [2019-11-07 04:20:08,595 INFO L226 Difference]: Without dead ends: 366 [2019-11-07 04:20:08,597 INFO L630 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 [2019-11-07 04:20:08,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-11-07 04:20:08,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2019-11-07 04:20:08,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-11-07 04:20:08,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 451 transitions. [2019-11-07 04:20:08,626 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 451 transitions. Word has length 144 [2019-11-07 04:20:08,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:08,627 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 451 transitions. [2019-11-07 04:20:08,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:08,627 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 451 transitions. [2019-11-07 04:20:08,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-07 04:20:08,631 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:08,631 INFO L410 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, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:08,631 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:08,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:08,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1474183208, now seen corresponding path program 1 times [2019-11-07 04:20:08,632 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:08,633 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645088623] [2019-11-07 04:20:08,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:08,909 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645088623] [2019-11-07 04:20:08,910 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:08,910 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:08,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141892063] [2019-11-07 04:20:08,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:08,911 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:08,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:08,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:08,912 INFO L87 Difference]: Start difference. First operand 365 states and 451 transitions. Second operand 3 states. [2019-11-07 04:20:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:08,963 INFO L93 Difference]: Finished difference Result 748 states and 972 transitions. [2019-11-07 04:20:08,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:08,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2019-11-07 04:20:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:08,976 INFO L225 Difference]: With dead ends: 748 [2019-11-07 04:20:08,977 INFO L226 Difference]: Without dead ends: 441 [2019-11-07 04:20:08,979 INFO L630 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 [2019-11-07 04:20:08,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2019-11-07 04:20:09,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 440. [2019-11-07 04:20:09,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2019-11-07 04:20:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 581 transitions. [2019-11-07 04:20:09,024 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 581 transitions. Word has length 145 [2019-11-07 04:20:09,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:09,025 INFO L462 AbstractCegarLoop]: Abstraction has 440 states and 581 transitions. [2019-11-07 04:20:09,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:09,026 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 581 transitions. [2019-11-07 04:20:09,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-07 04:20:09,033 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:09,033 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:09,033 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:09,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:09,034 INFO L82 PathProgramCache]: Analyzing trace with hash 463865911, now seen corresponding path program 1 times [2019-11-07 04:20:09,034 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:09,035 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564201247] [2019-11-07 04:20:09,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:20:09,613 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564201247] [2019-11-07 04:20:09,613 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:09,613 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-11-07 04:20:09,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340812481] [2019-11-07 04:20:09,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-07 04:20:09,615 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:09,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-07 04:20:09,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2019-11-07 04:20:09,617 INFO L87 Difference]: Start difference. First operand 440 states and 581 transitions. Second operand 23 states. [2019-11-07 04:20:19,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:19,732 INFO L93 Difference]: Finished difference Result 953 states and 1157 transitions. [2019-11-07 04:20:19,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-11-07 04:20:19,733 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 148 [2019-11-07 04:20:19,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:19,738 INFO L225 Difference]: With dead ends: 953 [2019-11-07 04:20:19,738 INFO L226 Difference]: Without dead ends: 735 [2019-11-07 04:20:19,740 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=351, Invalid=2405, Unknown=0, NotChecked=0, Total=2756 [2019-11-07 04:20:19,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2019-11-07 04:20:19,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 725. [2019-11-07 04:20:19,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2019-11-07 04:20:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 891 transitions. [2019-11-07 04:20:19,848 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 891 transitions. Word has length 148 [2019-11-07 04:20:19,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:19,849 INFO L462 AbstractCegarLoop]: Abstraction has 725 states and 891 transitions. [2019-11-07 04:20:19,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-07 04:20:19,849 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 891 transitions. [2019-11-07 04:20:19,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-07 04:20:19,854 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:19,854 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:19,855 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:19,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:19,855 INFO L82 PathProgramCache]: Analyzing trace with hash -920810668, now seen corresponding path program 1 times [2019-11-07 04:20:19,856 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:19,856 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325343508] [2019-11-07 04:20:19,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:20,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:20,076 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325343508] [2019-11-07 04:20:20,077 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350019022] [2019-11-07 04:20:20,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:20:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:20,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 2578 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:20:20,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:20:20,728 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:20,728 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:20:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:20,985 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [542805702] [2019-11-07 04:20:21,017 INFO L159 IcfgInterpreter]: Started Sifa with 143 locations of interest [2019-11-07 04:20:21,017 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:20:21,024 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:20:21,031 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:20:21,032 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs