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_spec27_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:08:29,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:08:29,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:08:29,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:08:29,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:08:29,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:08:29,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:08:30,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:08:30,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:08:30,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:08:30,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:08:30,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:08:30,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:08:30,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:08:30,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:08:30,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:08:30,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:08:30,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:08:30,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:08:30,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:08:30,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:08:30,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:08:30,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:08:30,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:08:30,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:08:30,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:08:30,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:08:30,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:08:30,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:08:30,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:08:30,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:08:30,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:08:30,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:08:30,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:08:30,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:08:30,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:08:30,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:08:30,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:08:30,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:08:30,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:08:30,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:08:30,065 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:08:30,084 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:08:30,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:08:30,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:08:30,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:08:30,088 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:08:30,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:08:30,088 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:08:30,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:08:30,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:08:30,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:08:30,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:08:30,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:08:30,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:08:30,091 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:08:30,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:08:30,091 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:08:30,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:08:30,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:08:30,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:08:30,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:08:30,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:08:30,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:08:30,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:08:30,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:08:30,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:08:30,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:08:30,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:08:30,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:08:30,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:08:30,367 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:08:30,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:08:30,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:08:30,394 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:08:30,394 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:08:30,395 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product23.cil.c [2019-10-13 23:08:30,464 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea8ad1fd/c2491dac0af4435fa70979366017fa49/FLAGc1f31b608 [2019-10-13 23:08:31,139 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:08:31,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product23.cil.c [2019-10-13 23:08:31,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea8ad1fd/c2491dac0af4435fa70979366017fa49/FLAGc1f31b608 [2019-10-13 23:08:31,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea8ad1fd/c2491dac0af4435fa70979366017fa49 [2019-10-13 23:08:31,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:08:31,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:08:31,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:31,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:08:31,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:08:31,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:31" (1/1) ... [2019-10-13 23:08:31,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2feeb304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31, skipping insertion in model container [2019-10-13 23:08:31,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:31" (1/1) ... [2019-10-13 23:08:31,357 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:08:31,442 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:08:32,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:32,161 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:08:32,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:32,363 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:08:32,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32 WrapperNode [2019-10-13 23:08:32,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:32,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:08:32,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:08:32,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:08:32,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... [2019-10-13 23:08:32,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:08:32,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:08:32,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:08:32,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:08:32,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:08:32,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:08:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:08:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:08:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:08:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:08:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:08:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:08:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:08:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:08:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:08:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:08:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:08:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:08:32,632 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:08:32,633 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:08:32,633 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:08:32,633 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:08:32,633 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:08:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:08:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:08:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:08:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:08:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:08:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:08:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:08:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:08:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:08:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:08:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:08:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:08:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:08:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:08:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:08:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:08:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:08:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:08:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:08:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:08:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:08:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:08:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:08:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:08:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:08:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:08:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:08:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:08:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:08:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:08:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:08:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:08:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:08:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:08:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:08:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:08:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:08:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-13 23:08:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:08:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:08:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:08:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:08:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:08:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:08:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:08:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:08:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:08:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:08:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:08:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:08:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:08:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:08:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:08:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:08:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:08:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:08:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:08:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:08:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:08:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:08:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:08:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:08:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:08:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:08:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:08:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:08:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:08:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:08:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:08:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:08:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:08:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:08:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:08:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:08:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:08:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:08:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:08:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:08:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:08:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:08:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:08:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:08:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:08:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:08:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:08:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:08:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:08:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:08:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:08:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:08:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:08:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:08:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:08:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:08:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:08:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:08:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:08:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:08:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:08:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:08:32,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:08:32,661 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:08:32,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:08:32,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:08:32,661 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:08:32,661 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:08:32,662 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:08:32,662 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:08:32,663 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:08:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:08:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:08:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:08:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:08:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:08:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:08:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:08:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:08:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:08:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:08:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:08:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:08:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:08:32,677 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:08:32,677 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:08:32,677 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:08:32,677 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:08:32,677 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:08:32,677 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:08:32,678 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:08:32,678 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:08:32,678 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:08:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:08:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:08:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:08:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:08:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:08:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:08:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:08:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:08:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:08:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:08:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:08:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:08:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:08:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:08:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:08:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:08:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:08:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:08:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:08:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:08:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:08:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:08:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:08:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:08:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:08:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:08:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:08:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:08:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:08:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:08:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:08:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:08:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:08:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:08:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:08:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:08:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:08:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:08:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:08:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:08:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:08:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:08:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:08:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:08:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:08:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:08:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-13 23:08:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:08:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:08:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:08:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:08:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:08:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:08:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:08:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:08:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:08:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:08:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:08:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:08:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:08:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:08:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:08:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:08:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:08:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:08:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:08:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:08:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:08:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:08:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:08:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:08:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:08:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:08:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:08:32,694 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:08:32,694 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:08:32,694 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:08:32,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:08:32,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:08:32,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:08:37,612 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:08:37,613 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:08:37,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:37 BoogieIcfgContainer [2019-10-13 23:08:37,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:08:37,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:08:37,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:08:37,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:08:37,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:08:31" (1/3) ... [2019-10-13 23:08:37,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af6386c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:37, skipping insertion in model container [2019-10-13 23:08:37,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:32" (2/3) ... [2019-10-13 23:08:37,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af6386c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:37, skipping insertion in model container [2019-10-13 23:08:37,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:37" (3/3) ... [2019-10-13 23:08:37,625 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product23.cil.c [2019-10-13 23:08:37,638 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:08:37,652 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:08:37,667 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:08:37,710 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:08:37,711 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:08:37,715 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:08:37,715 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:08:37,715 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:08:37,715 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:08:37,716 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:08:37,716 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:08:37,759 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states. [2019-10-13 23:08:37,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 23:08:37,790 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:37,792 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:37,795 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:37,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:37,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1832728935, now seen corresponding path program 1 times [2019-10-13 23:08:37,811 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:37,811 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403373273] [2019-10-13 23:08:37,812 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:37,812 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:37,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:38,497 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:38,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403373273] [2019-10-13 23:08:38,498 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:38,499 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:08:38,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349458447] [2019-10-13 23:08:38,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:08:38,506 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:38,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:08:38,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:08:38,523 INFO L87 Difference]: Start difference. First operand 397 states. Second operand 2 states. [2019-10-13 23:08:38,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:38,611 INFO L93 Difference]: Finished difference Result 548 states and 649 transitions. [2019-10-13 23:08:38,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:08:38,616 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 150 [2019-10-13 23:08:38,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:38,646 INFO L225 Difference]: With dead ends: 548 [2019-10-13 23:08:38,647 INFO L226 Difference]: Without dead ends: 356 [2019-10-13 23:08:38,660 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:08:38,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-13 23:08:38,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-10-13 23:08:38,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-13 23:08:38,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 417 transitions. [2019-10-13 23:08:38,758 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 417 transitions. Word has length 150 [2019-10-13 23:08:38,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:38,760 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 417 transitions. [2019-10-13 23:08:38,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:08:38,761 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 417 transitions. [2019-10-13 23:08:38,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-13 23:08:38,767 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:38,767 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:38,768 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:38,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:38,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1594038799, now seen corresponding path program 1 times [2019-10-13 23:08:38,768 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:38,769 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823348867] [2019-10-13 23:08:38,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:38,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:38,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:39,147 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823348867] [2019-10-13 23:08:39,147 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:39,147 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:39,147 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647414928] [2019-10-13 23:08:39,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:39,152 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:39,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:39,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:39,153 INFO L87 Difference]: Start difference. First operand 356 states and 417 transitions. Second operand 3 states. [2019-10-13 23:08:39,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:39,232 INFO L93 Difference]: Finished difference Result 533 states and 614 transitions. [2019-10-13 23:08:39,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:39,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2019-10-13 23:08:39,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:39,244 INFO L225 Difference]: With dead ends: 533 [2019-10-13 23:08:39,246 INFO L226 Difference]: Without dead ends: 358 [2019-10-13 23:08:39,250 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:39,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2019-10-13 23:08:39,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2019-10-13 23:08:39,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-10-13 23:08:39,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 419 transitions. [2019-10-13 23:08:39,282 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 419 transitions. Word has length 151 [2019-10-13 23:08:39,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:39,283 INFO L462 AbstractCegarLoop]: Abstraction has 358 states and 419 transitions. [2019-10-13 23:08:39,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:39,283 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 419 transitions. [2019-10-13 23:08:39,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:08:39,286 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:39,287 INFO L380 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, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:39,287 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:39,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:39,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1460630371, now seen corresponding path program 1 times [2019-10-13 23:08:39,288 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:39,288 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822449048] [2019-10-13 23:08:39,288 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:39,288 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:39,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:39,580 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:39,582 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822449048] [2019-10-13 23:08:39,583 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:39,583 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:39,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139978164] [2019-10-13 23:08:39,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:39,587 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:39,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:39,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:39,588 INFO L87 Difference]: Start difference. First operand 358 states and 419 transitions. Second operand 3 states. [2019-10-13 23:08:39,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:39,676 INFO L93 Difference]: Finished difference Result 700 states and 848 transitions. [2019-10-13 23:08:39,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:39,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-13 23:08:39,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:39,685 INFO L225 Difference]: With dead ends: 700 [2019-10-13 23:08:39,686 INFO L226 Difference]: Without dead ends: 400 [2019-10-13 23:08:39,689 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:39,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2019-10-13 23:08:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 399. [2019-10-13 23:08:39,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-13 23:08:39,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 490 transitions. [2019-10-13 23:08:39,755 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 490 transitions. Word has length 160 [2019-10-13 23:08:39,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:39,758 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 490 transitions. [2019-10-13 23:08:39,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:39,759 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 490 transitions. [2019-10-13 23:08:39,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-13 23:08:39,772 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:39,773 INFO L380 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:39,773 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:39,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:39,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1537483248, now seen corresponding path program 1 times [2019-10-13 23:08:39,776 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:39,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715679999] [2019-10-13 23:08:39,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:39,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:39,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:39,997 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:39,998 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715679999] [2019-10-13 23:08:39,998 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:39,998 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:39,999 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966458045] [2019-10-13 23:08:39,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:39,999 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:40,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:40,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:40,000 INFO L87 Difference]: Start difference. First operand 399 states and 490 transitions. Second operand 3 states. [2019-10-13 23:08:40,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:40,042 INFO L93 Difference]: Finished difference Result 820 states and 1056 transitions. [2019-10-13 23:08:40,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:40,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-13 23:08:40,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:40,050 INFO L225 Difference]: With dead ends: 820 [2019-10-13 23:08:40,050 INFO L226 Difference]: Without dead ends: 479 [2019-10-13 23:08:40,052 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:40,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2019-10-13 23:08:40,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 478. [2019-10-13 23:08:40,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-13 23:08:40,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 626 transitions. [2019-10-13 23:08:40,087 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 626 transitions. Word has length 161 [2019-10-13 23:08:40,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:40,088 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 626 transitions. [2019-10-13 23:08:40,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:40,088 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 626 transitions. [2019-10-13 23:08:40,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-13 23:08:40,092 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:40,092 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:40,092 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:40,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:40,093 INFO L82 PathProgramCache]: Analyzing trace with hash 770434436, now seen corresponding path program 1 times [2019-10-13 23:08:40,093 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:40,094 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239683105] [2019-10-13 23:08:40,094 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:40,094 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:40,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:40,345 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:08:40,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239683105] [2019-10-13 23:08:40,346 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:40,346 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:08:40,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629585299] [2019-10-13 23:08:40,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:08:40,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:40,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:08:40,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:08:40,350 INFO L87 Difference]: Start difference. First operand 478 states and 626 transitions. Second operand 8 states. [2019-10-13 23:08:40,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:40,419 INFO L93 Difference]: Finished difference Result 641 states and 813 transitions. [2019-10-13 23:08:40,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:08:40,420 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 164 [2019-10-13 23:08:40,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:40,425 INFO L225 Difference]: With dead ends: 641 [2019-10-13 23:08:40,425 INFO L226 Difference]: Without dead ends: 478 [2019-10-13 23:08:40,426 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:08:40,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-10-13 23:08:40,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2019-10-13 23:08:40,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-13 23:08:40,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 625 transitions. [2019-10-13 23:08:40,460 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 625 transitions. Word has length 164 [2019-10-13 23:08:40,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:40,461 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 625 transitions. [2019-10-13 23:08:40,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:08:40,461 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 625 transitions. [2019-10-13 23:08:40,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-13 23:08:40,465 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:40,465 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:40,465 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:40,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:40,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1384080021, now seen corresponding path program 1 times [2019-10-13 23:08:40,466 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:40,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211634844] [2019-10-13 23:08:40,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:40,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:40,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:41,434 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:08:41,434 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211634844] [2019-10-13 23:08:41,435 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:41,436 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2019-10-13 23:08:41,436 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696000263] [2019-10-13 23:08:41,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-13 23:08:41,437 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:41,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-13 23:08:41,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2019-10-13 23:08:41,439 INFO L87 Difference]: Start difference. First operand 478 states and 625 transitions. Second operand 29 states. [2019-10-13 23:08:52,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:52,559 INFO L93 Difference]: Finished difference Result 888 states and 1117 transitions. [2019-10-13 23:08:52,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-13 23:08:52,560 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 169 [2019-10-13 23:08:52,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:52,566 INFO L225 Difference]: With dead ends: 888 [2019-10-13 23:08:52,566 INFO L226 Difference]: Without dead ends: 717 [2019-10-13 23:08:52,569 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=275, Invalid=3031, Unknown=0, NotChecked=0, Total=3306 [2019-10-13 23:08:52,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-10-13 23:08:52,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 708. [2019-10-13 23:08:52,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-13 23:08:52,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 902 transitions. [2019-10-13 23:08:52,615 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 902 transitions. Word has length 169 [2019-10-13 23:08:52,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:52,616 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 902 transitions. [2019-10-13 23:08:52,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-13 23:08:52,616 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 902 transitions. [2019-10-13 23:08:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 23:08:52,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:52,621 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:52,621 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:52,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:52,622 INFO L82 PathProgramCache]: Analyzing trace with hash 523269876, now seen corresponding path program 1 times [2019-10-13 23:08:52,622 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:52,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178131047] [2019-10-13 23:08:52,622 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:52,622 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:52,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:53,271 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:08:53,271 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178131047] [2019-10-13 23:08:53,272 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:53,272 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-13 23:08:53,272 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686881393] [2019-10-13 23:08:53,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-13 23:08:53,274 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:53,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-13 23:08:53,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:08:53,275 INFO L87 Difference]: Start difference. First operand 708 states and 902 transitions. Second operand 23 states. [2019-10-13 23:09:02,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:02,373 INFO L93 Difference]: Finished difference Result 1430 states and 1738 transitions. [2019-10-13 23:09:02,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-13 23:09:02,374 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 190 [2019-10-13 23:09:02,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:02,382 INFO L225 Difference]: With dead ends: 1430 [2019-10-13 23:09:02,382 INFO L226 Difference]: Without dead ends: 1045 [2019-10-13 23:09:02,385 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=2023, Unknown=0, NotChecked=0, Total=2256 [2019-10-13 23:09:02,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-10-13 23:09:02,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1030. [2019-10-13 23:09:02,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1030 states. [2019-10-13 23:09:02,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1270 transitions. [2019-10-13 23:09:02,438 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1270 transitions. Word has length 190 [2019-10-13 23:09:02,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:02,439 INFO L462 AbstractCegarLoop]: Abstraction has 1030 states and 1270 transitions. [2019-10-13 23:09:02,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-13 23:09:02,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1270 transitions. [2019-10-13 23:09:02,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 23:09:02,444 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:02,444 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:02,444 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:02,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:02,445 INFO L82 PathProgramCache]: Analyzing trace with hash -189074485, now seen corresponding path program 1 times [2019-10-13 23:09:02,445 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:02,445 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980616887] [2019-10-13 23:09:02,445 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:02,446 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:02,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:03,504 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:09:03,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980616887] [2019-10-13 23:09:03,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705865594] [2019-10-13 23:09:03,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:09:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:04,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:09:04,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:09:04,339 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:09:04,339 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:09:04,653 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:09:04,654 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1117384438] [2019-10-13 23:09:04,685 INFO L162 IcfgInterpreter]: Started Sifa with 181 locations of interest [2019-10-13 23:09:04,686 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:09:04,692 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:09:04,699 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:09:04,700 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs