/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_spec6_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:23:34,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:23:34,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:23:34,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:23:34,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:23:34,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:23:34,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:23:34,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:23:34,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:23:34,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:23:34,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:23:34,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:23:34,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:23:34,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:23:34,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:23:34,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:23:34,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:23:34,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:23:34,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:23:34,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:23:34,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:23:34,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:23:34,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:23:34,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:23:34,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:23:34,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:23:34,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:23:34,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:23:34,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:23:34,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:23:34,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:23:34,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:23:34,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:23:34,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:23:34,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:23:34,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:23:34,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:23:34,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:23:34,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:23:34,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:23:34,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:23:34,791 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 04:23:34,825 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:23:34,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:23:34,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:23:34,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:23:34,826 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:23:34,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:23:34,832 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:23:34,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:23:34,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:23:34,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:23:34,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:23:34,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:23:34,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:23:34,833 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:23:34,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:23:34,835 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:23:34,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:23:34,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:23:34,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:23:34,835 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:23:34,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:23:34,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:23:34,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:23:34,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:23:34,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:23:34,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:23:34,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:23:34,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:23:34,837 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 04:23:35,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:23:35,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:23:35,138 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:23:35,139 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:23:35,140 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:23:35,140 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-11-07 04:23:35,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b7257bc/ecf1d32bda7d4571a04a0e3b1e6f7478/FLAG282aae759 [2019-11-07 04:23:35,852 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:23:35,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-11-07 04:23:35,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b7257bc/ecf1d32bda7d4571a04a0e3b1e6f7478/FLAG282aae759 [2019-11-07 04:23:36,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b7257bc/ecf1d32bda7d4571a04a0e3b1e6f7478 [2019-11-07 04:23:36,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:23:36,087 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:23:36,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:23:36,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:23:36,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:23:36,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:23:36" (1/1) ... [2019-11-07 04:23:36,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5264e025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:36, skipping insertion in model container [2019-11-07 04:23:36,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:23:36" (1/1) ... [2019-11-07 04:23:36,140 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:23:36,255 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:23:37,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:23:37,074 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:23:37,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:23:37,300 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:23:37,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:37 WrapperNode [2019-11-07 04:23:37,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:23:37,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:23:37,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:23:37,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:23:37,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:37" (1/1) ... [2019-11-07 04:23:37,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:37" (1/1) ... [2019-11-07 04:23:37,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:37" (1/1) ... [2019-11-07 04:23:37,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:37" (1/1) ... [2019-11-07 04:23:37,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:37" (1/1) ... [2019-11-07 04:23:37,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:37" (1/1) ... [2019-11-07 04:23:37,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:37" (1/1) ... [2019-11-07 04:23:37,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:23:37,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:23:37,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:23:37,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:23:37,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:37" (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 04:23:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:23:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:23:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:23:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:23:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:23:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:23:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:23:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:23:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:23:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:23:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:23:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:23:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:23:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:23:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:23:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:23:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:23:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:23:37,537 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:23:37,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:23:37,538 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:23:37,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:23:37,538 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:23:37,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:23:37,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:23:37,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:23:37,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:23:37,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:23:37,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:23:37,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 04:23:37,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 04:23:37,540 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:23:37,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:23:37,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:23:37,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:23:37,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:23:37,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:23:37,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:23:37,541 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:23:37,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:23:37,542 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:23:37,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:23:37,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:23:37,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:23:37,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:23:37,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:23:37,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:23:37,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:23:37,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:23:37,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:23:37,543 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:23:37,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:23:37,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:23:37,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:23:37,544 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:23:37,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:23:37,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:23:37,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:23:37,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:23:37,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:23:37,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:23:37,545 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:23:37,545 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:23:37,545 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:23:37,545 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:23:37,545 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:23:37,546 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:23:37,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:23:37,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 04:23:37,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:23:37,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:23:37,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:23:37,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:23:37,546 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:23:37,547 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:23:37,547 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:23:37,547 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:23:37,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:23:37,547 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:23:37,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:23:37,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:23:37,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:23:37,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:23:37,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:23:37,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:23:37,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:23:37,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:23:37,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:23:37,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:23:37,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:23:37,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:23:37,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:23:37,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:23:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:23:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:23:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:23:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:23:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:23:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 04:23:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 04:23:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:23:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:23:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:23:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:23:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:23:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:23:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:23:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:23:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:23:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:23:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:23:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:23:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:23:37,551 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:23:37,552 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:23:37,552 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:23:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:23:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:23:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:23:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:23:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:23:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:23:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:23:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:23:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:23:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:23:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:23:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:23:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:23:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:23:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:23:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:23:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:23:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:23:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:23:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:23:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:23:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:23:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:23:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:23:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:23:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:23:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:23:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:23:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:23:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:23:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:23:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:23:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:23:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:23:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:23:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:23:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:23:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:23:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:23:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:23:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:23:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:23:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:23:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:23:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:23:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:23:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:23:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:23:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:23:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:23:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:23:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:23:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:23:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:23:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:23:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:23:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:23:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:23:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:23:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:23:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:23:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:23:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:23:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:23:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:23:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:23:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 04:23:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 04:23:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:23:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:23:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:23:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:23:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:23:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:23:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:23:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:23:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:23:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:23:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:23:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:23:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:23:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:23:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:23:37,564 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:23:37,564 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:23:37,564 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:23:37,564 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:23:37,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:23:37,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:23:37,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:23:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:23:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:23:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:23:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:23:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:23:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:23:37,565 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:23:37,566 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:23:37,566 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:23:37,566 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:23:37,566 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:23:37,566 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 04:23:37,566 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:23:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:23:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:23:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:23:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:23:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:23:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:23:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:23:37,567 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:23:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:23:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:23:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:23:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:23:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:23:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:23:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:23:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:23:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:23:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:23:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:23:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:23:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:23:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 04:23:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 04:23:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:23:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:23:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:23:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:23:37,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:23:42,267 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:23:42,267 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:23:42,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:23:42 BoogieIcfgContainer [2019-11-07 04:23:42,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:23:42,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:23:42,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:23:42,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:23:42,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:23:36" (1/3) ... [2019-11-07 04:23:42,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5197822c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:23:42, skipping insertion in model container [2019-11-07 04:23:42,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:37" (2/3) ... [2019-11-07 04:23:42,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5197822c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:23:42, skipping insertion in model container [2019-11-07 04:23:42,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:23:42" (3/3) ... [2019-11-07 04:23:42,279 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product29.cil.c [2019-11-07 04:23:42,340 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:23:42,351 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:23:42,367 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:23:42,410 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:23:42,410 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:23:42,411 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:23:42,411 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:23:42,411 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:23:42,412 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:23:42,412 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:23:42,412 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:23:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2019-11-07 04:23:42,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-07 04:23:42,462 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:42,464 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:42,466 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:42,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:42,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1311339038, now seen corresponding path program 1 times [2019-11-07 04:23:42,479 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:42,480 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96899951] [2019-11-07 04:23:42,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:43,102 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:23:43,103 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96899951] [2019-11-07 04:23:43,103 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:43,104 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:23:43,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874034161] [2019-11-07 04:23:43,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:23:43,113 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:43,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:23:43,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:23:43,131 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 2 states. [2019-11-07 04:23:43,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:43,200 INFO L93 Difference]: Finished difference Result 597 states and 718 transitions. [2019-11-07 04:23:43,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:23:43,202 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-11-07 04:23:43,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:43,222 INFO L225 Difference]: With dead ends: 597 [2019-11-07 04:23:43,222 INFO L226 Difference]: Without dead ends: 377 [2019-11-07 04:23:43,228 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 04:23:43,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-11-07 04:23:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2019-11-07 04:23:43,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-11-07 04:23:43,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 449 transitions. [2019-11-07 04:23:43,318 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 449 transitions. Word has length 154 [2019-11-07 04:23:43,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:43,323 INFO L462 AbstractCegarLoop]: Abstraction has 377 states and 449 transitions. [2019-11-07 04:23:43,323 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:23:43,323 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 449 transitions. [2019-11-07 04:23:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-11-07 04:23:43,335 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:43,335 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:43,336 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:43,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:43,340 INFO L82 PathProgramCache]: Analyzing trace with hash 572850053, now seen corresponding path program 1 times [2019-11-07 04:23:43,341 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:43,341 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041780659] [2019-11-07 04:23:43,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:43,608 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:23:43,608 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041780659] [2019-11-07 04:23:43,609 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:43,609 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:43,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470892449] [2019-11-07 04:23:43,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:43,612 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:43,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:43,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:43,613 INFO L87 Difference]: Start difference. First operand 377 states and 449 transitions. Second operand 3 states. [2019-11-07 04:23:43,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:43,665 INFO L93 Difference]: Finished difference Result 582 states and 685 transitions. [2019-11-07 04:23:43,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:43,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-11-07 04:23:43,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:43,671 INFO L225 Difference]: With dead ends: 582 [2019-11-07 04:23:43,672 INFO L226 Difference]: Without dead ends: 379 [2019-11-07 04:23:43,675 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 04:23:43,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-11-07 04:23:43,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-11-07 04:23:43,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-11-07 04:23:43,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 451 transitions. [2019-11-07 04:23:43,726 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 451 transitions. Word has length 155 [2019-11-07 04:23:43,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:43,727 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 451 transitions. [2019-11-07 04:23:43,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:43,729 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 451 transitions. [2019-11-07 04:23:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-07 04:23:43,734 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:43,734 INFO L410 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] [2019-11-07 04:23:43,735 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:43,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:43,735 INFO L82 PathProgramCache]: Analyzing trace with hash -113502009, now seen corresponding path program 1 times [2019-11-07 04:23:43,735 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:43,736 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146354741] [2019-11-07 04:23:43,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:44,050 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:23:44,051 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146354741] [2019-11-07 04:23:44,051 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:44,051 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:44,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608650619] [2019-11-07 04:23:44,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:44,055 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:44,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:44,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:44,056 INFO L87 Difference]: Start difference. First operand 379 states and 451 transitions. Second operand 3 states. [2019-11-07 04:23:44,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:44,135 INFO L93 Difference]: Finished difference Result 740 states and 909 transitions. [2019-11-07 04:23:44,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:44,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-11-07 04:23:44,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:44,150 INFO L225 Difference]: With dead ends: 740 [2019-11-07 04:23:44,150 INFO L226 Difference]: Without dead ends: 419 [2019-11-07 04:23:44,152 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 04:23:44,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2019-11-07 04:23:44,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 418. [2019-11-07 04:23:44,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-11-07 04:23:44,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 519 transitions. [2019-11-07 04:23:44,213 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 519 transitions. Word has length 160 [2019-11-07 04:23:44,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:44,214 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 519 transitions. [2019-11-07 04:23:44,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:44,214 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 519 transitions. [2019-11-07 04:23:44,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-11-07 04:23:44,223 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:44,223 INFO L410 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] [2019-11-07 04:23:44,223 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:44,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:44,225 INFO L82 PathProgramCache]: Analyzing trace with hash 318130641, now seen corresponding path program 1 times [2019-11-07 04:23:44,230 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:44,230 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551638904] [2019-11-07 04:23:44,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:45,088 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:23:45,088 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551638904] [2019-11-07 04:23:45,088 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:45,089 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-11-07 04:23:45,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094525849] [2019-11-07 04:23:45,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-07 04:23:45,149 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:45,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-07 04:23:45,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2019-11-07 04:23:45,153 INFO L87 Difference]: Start difference. First operand 418 states and 519 transitions. Second operand 26 states. [2019-11-07 04:23:56,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:56,164 INFO L93 Difference]: Finished difference Result 1146 states and 1423 transitions. [2019-11-07 04:23:56,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-11-07 04:23:56,165 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 161 [2019-11-07 04:23:56,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:56,177 INFO L225 Difference]: With dead ends: 1146 [2019-11-07 04:23:56,177 INFO L226 Difference]: Without dead ends: 947 [2019-11-07 04:23:56,180 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2019-11-07 04:23:56,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2019-11-07 04:23:56,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 934. [2019-11-07 04:23:56,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 934 states. [2019-11-07 04:23:56,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1141 transitions. [2019-11-07 04:23:56,234 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1141 transitions. Word has length 161 [2019-11-07 04:23:56,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:56,236 INFO L462 AbstractCegarLoop]: Abstraction has 934 states and 1141 transitions. [2019-11-07 04:23:56,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-07 04:23:56,236 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1141 transitions. [2019-11-07 04:23:56,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-11-07 04:23:56,239 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:56,240 INFO L410 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] [2019-11-07 04:23:56,240 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:56,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:56,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1823644212, now seen corresponding path program 1 times [2019-11-07 04:23:56,241 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:56,241 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660950393] [2019-11-07 04:23:56,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:56,633 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:23:56,633 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660950393] [2019-11-07 04:23:56,634 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:56,634 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-11-07 04:23:56,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239339671] [2019-11-07 04:23:56,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 04:23:56,635 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:56,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 04:23:56,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-11-07 04:23:56,635 INFO L87 Difference]: Start difference. First operand 934 states and 1141 transitions. Second operand 16 states. [2019-11-07 04:24:02,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:02,033 INFO L93 Difference]: Finished difference Result 2145 states and 2624 transitions. [2019-11-07 04:24:02,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-07 04:24:02,033 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 167 [2019-11-07 04:24:02,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:02,054 INFO L225 Difference]: With dead ends: 2145 [2019-11-07 04:24:02,054 INFO L226 Difference]: Without dead ends: 1776 [2019-11-07 04:24:02,058 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-11-07 04:24:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2019-11-07 04:24:02,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1728. [2019-11-07 04:24:02,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1728 states. [2019-11-07 04:24:02,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2103 transitions. [2019-11-07 04:24:02,194 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2103 transitions. Word has length 167 [2019-11-07 04:24:02,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:02,194 INFO L462 AbstractCegarLoop]: Abstraction has 1728 states and 2103 transitions. [2019-11-07 04:24:02,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 04:24:02,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2103 transitions. [2019-11-07 04:24:02,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-07 04:24:02,199 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:02,199 INFO L410 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] [2019-11-07 04:24:02,199 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:02,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:02,200 INFO L82 PathProgramCache]: Analyzing trace with hash 905761496, now seen corresponding path program 1 times [2019-11-07 04:24:02,200 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:02,200 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119354240] [2019-11-07 04:24:02,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:02,391 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119354240] [2019-11-07 04:24:02,392 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:02,392 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:02,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202046710] [2019-11-07 04:24:02,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:02,393 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:02,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:02,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:02,394 INFO L87 Difference]: Start difference. First operand 1728 states and 2103 transitions. Second operand 3 states. [2019-11-07 04:24:02,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:02,492 INFO L93 Difference]: Finished difference Result 3510 states and 4339 transitions. [2019-11-07 04:24:02,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:02,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-11-07 04:24:02,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:02,506 INFO L225 Difference]: With dead ends: 3510 [2019-11-07 04:24:02,506 INFO L226 Difference]: Without dead ends: 1840 [2019-11-07 04:24:02,513 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 04:24:02,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2019-11-07 04:24:02,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1838. [2019-11-07 04:24:02,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-11-07 04:24:02,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2294 transitions. [2019-11-07 04:24:02,692 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2294 transitions. Word has length 189 [2019-11-07 04:24:02,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:02,693 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 2294 transitions. [2019-11-07 04:24:02,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:02,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2294 transitions. [2019-11-07 04:24:02,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-11-07 04:24:02,698 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:02,698 INFO L410 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] [2019-11-07 04:24:02,699 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:02,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:02,699 INFO L82 PathProgramCache]: Analyzing trace with hash 574592110, now seen corresponding path program 1 times [2019-11-07 04:24:02,699 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:02,700 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52960923] [2019-11-07 04:24:02,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:02,881 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52960923] [2019-11-07 04:24:02,881 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:02,882 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:02,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498517915] [2019-11-07 04:24:02,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:02,883 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:02,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:02,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:02,884 INFO L87 Difference]: Start difference. First operand 1838 states and 2294 transitions. Second operand 3 states. [2019-11-07 04:24:03,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:03,002 INFO L93 Difference]: Finished difference Result 3825 states and 4888 transitions. [2019-11-07 04:24:03,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:03,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-11-07 04:24:03,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:03,019 INFO L225 Difference]: With dead ends: 3825 [2019-11-07 04:24:03,019 INFO L226 Difference]: Without dead ends: 2045 [2019-11-07 04:24:03,026 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 04:24:03,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2019-11-07 04:24:03,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2043. [2019-11-07 04:24:03,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2043 states. [2019-11-07 04:24:03,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2649 transitions. [2019-11-07 04:24:03,182 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2649 transitions. Word has length 190 [2019-11-07 04:24:03,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:03,183 INFO L462 AbstractCegarLoop]: Abstraction has 2043 states and 2649 transitions. [2019-11-07 04:24:03,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:03,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2649 transitions. [2019-11-07 04:24:03,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-11-07 04:24:03,191 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:03,191 INFO L410 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] [2019-11-07 04:24:03,191 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:03,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:03,192 INFO L82 PathProgramCache]: Analyzing trace with hash -753703558, now seen corresponding path program 1 times [2019-11-07 04:24:03,192 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:03,192 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210110768] [2019-11-07 04:24:03,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:03,592 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:03,592 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210110768] [2019-11-07 04:24:03,592 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:03,592 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:24:03,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31128538] [2019-11-07 04:24:03,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:24:03,594 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:03,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:24:03,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:24:03,595 INFO L87 Difference]: Start difference. First operand 2043 states and 2649 transitions. Second operand 12 states. [2019-11-07 04:24:08,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:08,570 INFO L93 Difference]: Finished difference Result 4276 states and 5709 transitions. [2019-11-07 04:24:08,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-07 04:24:08,571 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 191 [2019-11-07 04:24:08,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:08,593 INFO L225 Difference]: With dead ends: 4276 [2019-11-07 04:24:08,594 INFO L226 Difference]: Without dead ends: 3169 [2019-11-07 04:24:08,599 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-11-07 04:24:08,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2019-11-07 04:24:08,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 2444. [2019-11-07 04:24:08,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2444 states. [2019-11-07 04:24:08,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3350 transitions. [2019-11-07 04:24:08,756 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3350 transitions. Word has length 191 [2019-11-07 04:24:08,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:08,757 INFO L462 AbstractCegarLoop]: Abstraction has 2444 states and 3350 transitions. [2019-11-07 04:24:08,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:24:08,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3350 transitions. [2019-11-07 04:24:08,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-11-07 04:24:08,765 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:08,766 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:24:08,766 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:08,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:08,767 INFO L82 PathProgramCache]: Analyzing trace with hash -666170033, now seen corresponding path program 1 times [2019-11-07 04:24:08,767 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:08,767 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690359255] [2019-11-07 04:24:08,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-11-07 04:24:08,926 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690359255] [2019-11-07 04:24:08,926 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:08,926 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:08,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956806252] [2019-11-07 04:24:08,927 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:08,927 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:08,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:08,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:08,928 INFO L87 Difference]: Start difference. First operand 2444 states and 3350 transitions. Second operand 3 states. [2019-11-07 04:24:09,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:09,082 INFO L93 Difference]: Finished difference Result 5111 states and 7156 transitions. [2019-11-07 04:24:09,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:09,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-11-07 04:24:09,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:09,106 INFO L225 Difference]: With dead ends: 5111 [2019-11-07 04:24:09,106 INFO L226 Difference]: Without dead ends: 2729 [2019-11-07 04:24:09,119 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 04:24:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2019-11-07 04:24:09,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2728. [2019-11-07 04:24:09,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2728 states. [2019-11-07 04:24:09,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2728 states to 2728 states and 3850 transitions. [2019-11-07 04:24:09,354 INFO L78 Accepts]: Start accepts. Automaton has 2728 states and 3850 transitions. Word has length 197 [2019-11-07 04:24:09,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:09,355 INFO L462 AbstractCegarLoop]: Abstraction has 2728 states and 3850 transitions. [2019-11-07 04:24:09,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:09,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2728 states and 3850 transitions. [2019-11-07 04:24:09,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-11-07 04:24:09,371 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:09,371 INFO L410 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] [2019-11-07 04:24:09,372 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:09,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:09,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1339750124, now seen corresponding path program 1 times [2019-11-07 04:24:09,372 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:09,373 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849302179] [2019-11-07 04:24:09,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:09,743 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2019-11-07 04:24:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:09,857 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849302179] [2019-11-07 04:24:09,858 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:09,858 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:24:09,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823057610] [2019-11-07 04:24:09,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:24:09,860 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:09,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:24:09,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:24:09,860 INFO L87 Difference]: Start difference. First operand 2728 states and 3850 transitions. Second operand 12 states.