/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_spec27_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:18:34,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:18:34,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:18:34,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:18:34,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:18:34,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:18:34,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:18:34,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:18:34,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:18:34,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:18:34,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:18:34,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:18:34,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:18:34,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:18:34,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:18:34,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:18:34,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:18:34,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:18:34,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:18:34,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:18:34,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:18:34,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:18:34,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:18:34,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:18:34,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:18:34,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:18:34,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:18:34,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:18:34,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:18:34,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:18:34,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:18:34,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:18:34,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:18:34,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:18:34,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:18:34,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:18:34,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:18:34,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:18:34,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:18:34,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:18:34,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:18:34,101 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 04:18:34,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:18:34,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:18:34,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:18:34,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:18:34,121 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:18:34,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:18:34,122 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:18:34,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:18:34,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:18:34,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:18:34,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:18:34,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:18:34,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:18:34,123 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:18:34,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:18:34,123 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:18:34,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:18:34,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:18:34,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:18:34,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:18:34,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:18:34,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:18:34,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:18:34,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:18:34,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:18:34,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:18:34,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:18:34,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:18:34,126 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 04:18:34,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:18:34,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:18:34,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:18:34,412 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:18:34,412 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:18:34,413 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-11-07 04:18:34,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f753bf6e/cfe1fe4cce724886b126fd3a69d6531b/FLAG42e9fae68 [2019-11-07 04:18:35,117 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:18:35,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-11-07 04:18:35,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f753bf6e/cfe1fe4cce724886b126fd3a69d6531b/FLAG42e9fae68 [2019-11-07 04:18:35,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f753bf6e/cfe1fe4cce724886b126fd3a69d6531b [2019-11-07 04:18:35,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:18:35,361 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:18:35,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:18:35,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:18:35,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:18:35,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:35" (1/1) ... [2019-11-07 04:18:35,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3189ba63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:35, skipping insertion in model container [2019-11-07 04:18:35,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:35" (1/1) ... [2019-11-07 04:18:35,413 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:18:35,566 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:18:36,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:18:36,495 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:18:36,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:18:36,747 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:18:36,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:36 WrapperNode [2019-11-07 04:18:36,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:18:36,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:18:36,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:18:36,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:18:36,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:36" (1/1) ... [2019-11-07 04:18:36,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:36" (1/1) ... [2019-11-07 04:18:36,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:36" (1/1) ... [2019-11-07 04:18:36,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:36" (1/1) ... [2019-11-07 04:18:36,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:36" (1/1) ... [2019-11-07 04:18:36,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:36" (1/1) ... [2019-11-07 04:18:36,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:36" (1/1) ... [2019-11-07 04:18:36,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:18:36,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:18:36,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:18:36,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:18:36,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:36" (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 04:18:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:18:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:18:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:18:37,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:18:37,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:18:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:18:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:18:37,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:18:37,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:18:37,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:18:37,046 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:18:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:18:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:18:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:18:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:18:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:18:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:18:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:18:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:18:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:18:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:18:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:18:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:18:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:18:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:18:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:18:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:18:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:18:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:18:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:18:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:18:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:18:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:18:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:18:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:18:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:18:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:18:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 04:18:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:18:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:18:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:18:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:18:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:18:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:18:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:18:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:18:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:18:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:18:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:18:37,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:18:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:18:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:18:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:18:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:18:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:18:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:18:37,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:18:37,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:18:37,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:18:37,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:18:37,059 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:18:37,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:18:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:18:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:18:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:18:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:18:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:18:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:18:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:18:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:18:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:18:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:18:37,061 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:18:37,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:18:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:18:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:18:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:18:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:18:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:18:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:18:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:18:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:18:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:18:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:18:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:18:37,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:18:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:18:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:18:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:18:37,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:18:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:18:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:18:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:18:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:18:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:18:37,068 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:18:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:18:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:18:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:18:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:18:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:18:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:18:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:18:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:18:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:18:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:18:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:18:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:18:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:18:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:18:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:18:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:18:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:18:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:18:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:18:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:18:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:18:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:18:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:18:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:18:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:18:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:18:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:18:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:18:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:18:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:18:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:18:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:18:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:18:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:18:37,076 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:18:37,077 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:18:37,077 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:18:37,078 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:18:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:18:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:18:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:18:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:18:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:18:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:18:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:18:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:18:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:18:37,083 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:18:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:18:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:18:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:18:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:18:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:18:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:18:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:18:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:18:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:18:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:18:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:18:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:18:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:18:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:18:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:18:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:18:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:18:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:18:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:18:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:18:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:18:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:18:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:18:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 04:18:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:18:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:18:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:18:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:18:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:18:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:18:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:18:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:18:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:18:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:18:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:18:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:18:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:18:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:18:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:18:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:18:37,098 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:18:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:18:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:18:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:18:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:18:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:18:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:18:37,099 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:18:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:18:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:18:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:18:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:18:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:18:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:18:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:18:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:18:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:18:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:18:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:18:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:18:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:18:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:18:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:18:37,101 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:18:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:18:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:18:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:18:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:18:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:18:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:18:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:18:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:18:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:18:41,455 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:18:41,456 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:18:41,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:18:41 BoogieIcfgContainer [2019-11-07 04:18:41,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:18:41,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:18:41,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:18:41,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:18:41,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:18:35" (1/3) ... [2019-11-07 04:18:41,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59aa63b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:18:41, skipping insertion in model container [2019-11-07 04:18:41,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:36" (2/3) ... [2019-11-07 04:18:41,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59aa63b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:18:41, skipping insertion in model container [2019-11-07 04:18:41,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:18:41" (3/3) ... [2019-11-07 04:18:41,469 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product19.cil.c [2019-11-07 04:18:41,479 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:18:41,489 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:18:41,500 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:18:41,537 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:18:41,537 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:18:41,537 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:18:41,537 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:18:41,537 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:18:41,537 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:18:41,537 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:18:41,538 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:18:41,563 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states. [2019-11-07 04:18:41,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-11-07 04:18:41,589 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:41,590 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:41,594 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:41,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:41,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1868884875, now seen corresponding path program 1 times [2019-11-07 04:18:41,610 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:41,611 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091494169] [2019-11-07 04:18:41,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:42,226 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:42,227 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091494169] [2019-11-07 04:18:42,228 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:42,228 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:18:42,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501147842] [2019-11-07 04:18:42,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:18:42,241 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:42,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:18:42,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:18:42,259 INFO L87 Difference]: Start difference. First operand 361 states. Second operand 2 states. [2019-11-07 04:18:42,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:42,334 INFO L93 Difference]: Finished difference Result 530 states and 623 transitions. [2019-11-07 04:18:42,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:18:42,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-11-07 04:18:42,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:42,354 INFO L225 Difference]: With dead ends: 530 [2019-11-07 04:18:42,355 INFO L226 Difference]: Without dead ends: 340 [2019-11-07 04:18:42,360 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 04:18:42,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-11-07 04:18:42,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2019-11-07 04:18:42,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-11-07 04:18:42,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 398 transitions. [2019-11-07 04:18:42,481 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 398 transitions. Word has length 143 [2019-11-07 04:18:42,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:42,484 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 398 transitions. [2019-11-07 04:18:42,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:18:42,485 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 398 transitions. [2019-11-07 04:18:42,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-11-07 04:18:42,493 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:42,493 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:42,493 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:42,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:42,494 INFO L82 PathProgramCache]: Analyzing trace with hash 2087298503, now seen corresponding path program 1 times [2019-11-07 04:18:42,494 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:42,494 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376887644] [2019-11-07 04:18:42,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:42,733 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:42,733 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376887644] [2019-11-07 04:18:42,733 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:42,733 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:18:42,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948622878] [2019-11-07 04:18:42,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:18:42,737 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:42,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:18:42,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:18:42,738 INFO L87 Difference]: Start difference. First operand 340 states and 398 transitions. Second operand 3 states. [2019-11-07 04:18:42,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:42,814 INFO L93 Difference]: Finished difference Result 515 states and 591 transitions. [2019-11-07 04:18:42,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:18:42,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-11-07 04:18:42,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:42,825 INFO L225 Difference]: With dead ends: 515 [2019-11-07 04:18:42,826 INFO L226 Difference]: Without dead ends: 342 [2019-11-07 04:18:42,830 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 04:18:42,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2019-11-07 04:18:42,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2019-11-07 04:18:42,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2019-11-07 04:18:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 400 transitions. [2019-11-07 04:18:42,878 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 400 transitions. Word has length 144 [2019-11-07 04:18:42,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:42,878 INFO L462 AbstractCegarLoop]: Abstraction has 342 states and 400 transitions. [2019-11-07 04:18:42,878 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:18:42,879 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 400 transitions. [2019-11-07 04:18:42,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-11-07 04:18:42,882 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:42,882 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:42,883 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:42,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:42,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1934840532, now seen corresponding path program 1 times [2019-11-07 04:18:42,883 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:42,883 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966621293] [2019-11-07 04:18:42,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:43,020 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:43,021 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966621293] [2019-11-07 04:18:43,021 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:43,021 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:18:43,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469431313] [2019-11-07 04:18:43,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:18:43,022 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:43,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:18:43,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:18:43,023 INFO L87 Difference]: Start difference. First operand 342 states and 400 transitions. Second operand 3 states. [2019-11-07 04:18:43,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:43,054 INFO L93 Difference]: Finished difference Result 666 states and 807 transitions. [2019-11-07 04:18:43,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:18:43,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-11-07 04:18:43,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:43,058 INFO L225 Difference]: With dead ends: 666 [2019-11-07 04:18:43,058 INFO L226 Difference]: Without dead ends: 382 [2019-11-07 04:18:43,059 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 04:18:43,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-11-07 04:18:43,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2019-11-07 04:18:43,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-11-07 04:18:43,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 468 transitions. [2019-11-07 04:18:43,131 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 468 transitions. Word has length 149 [2019-11-07 04:18:43,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:43,133 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 468 transitions. [2019-11-07 04:18:43,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:18:43,133 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 468 transitions. [2019-11-07 04:18:43,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-07 04:18:43,140 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:43,140 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:43,140 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:43,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:43,141 INFO L82 PathProgramCache]: Analyzing trace with hash -188162591, now seen corresponding path program 1 times [2019-11-07 04:18:43,141 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:43,141 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776432765] [2019-11-07 04:18:43,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:18:43,444 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776432765] [2019-11-07 04:18:43,444 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:43,444 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:18:43,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949800575] [2019-11-07 04:18:43,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:18:43,446 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:43,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:18:43,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:18:43,446 INFO L87 Difference]: Start difference. First operand 381 states and 468 transitions. Second operand 8 states. [2019-11-07 04:18:43,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:43,537 INFO L93 Difference]: Finished difference Result 542 states and 648 transitions. [2019-11-07 04:18:43,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:18:43,538 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 150 [2019-11-07 04:18:43,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:43,547 INFO L225 Difference]: With dead ends: 542 [2019-11-07 04:18:43,547 INFO L226 Difference]: Without dead ends: 381 [2019-11-07 04:18:43,550 INFO L630 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 [2019-11-07 04:18:43,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-11-07 04:18:43,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2019-11-07 04:18:43,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-11-07 04:18:43,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 467 transitions. [2019-11-07 04:18:43,586 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 467 transitions. Word has length 150 [2019-11-07 04:18:43,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:43,587 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 467 transitions. [2019-11-07 04:18:43,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:18:43,587 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 467 transitions. [2019-11-07 04:18:43,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-11-07 04:18:43,591 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:43,591 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:43,591 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:43,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:43,592 INFO L82 PathProgramCache]: Analyzing trace with hash 2130876534, now seen corresponding path program 1 times [2019-11-07 04:18:43,592 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:43,593 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140475762] [2019-11-07 04:18:43,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:18:44,397 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140475762] [2019-11-07 04:18:44,397 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:44,397 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-11-07 04:18:44,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722340783] [2019-11-07 04:18:44,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-11-07 04:18:44,398 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:44,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-11-07 04:18:44,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2019-11-07 04:18:44,400 INFO L87 Difference]: Start difference. First operand 381 states and 467 transitions. Second operand 27 states. [2019-11-07 04:18:53,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:53,829 INFO L93 Difference]: Finished difference Result 763 states and 903 transitions. [2019-11-07 04:18:53,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-07 04:18:53,830 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 155 [2019-11-07 04:18:53,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:53,834 INFO L225 Difference]: With dead ends: 763 [2019-11-07 04:18:53,834 INFO L226 Difference]: Without dead ends: 571 [2019-11-07 04:18:53,838 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=255, Invalid=2607, Unknown=0, NotChecked=0, Total=2862 [2019-11-07 04:18:53,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2019-11-07 04:18:53,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 564. [2019-11-07 04:18:53,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2019-11-07 04:18:53,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 671 transitions. [2019-11-07 04:18:53,887 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 671 transitions. Word has length 155 [2019-11-07 04:18:53,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:53,888 INFO L462 AbstractCegarLoop]: Abstraction has 564 states and 671 transitions. [2019-11-07 04:18:53,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-11-07 04:18:53,889 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 671 transitions. [2019-11-07 04:18:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-11-07 04:18:53,893 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:53,894 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] [2019-11-07 04:18:53,894 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:53,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:53,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1706585510, now seen corresponding path program 1 times [2019-11-07 04:18:53,895 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:53,896 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397057561] [2019-11-07 04:18:53,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:54,598 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 04:18:54,599 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397057561] [2019-11-07 04:18:54,600 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:54,601 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-11-07 04:18:54,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098139005] [2019-11-07 04:18:54,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-07 04:18:54,602 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:54,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-07 04:18:54,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2019-11-07 04:18:54,603 INFO L87 Difference]: Start difference. First operand 564 states and 671 transitions. Second operand 21 states. [2019-11-07 04:19:02,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:19:02,567 INFO L93 Difference]: Finished difference Result 1168 states and 1331 transitions. [2019-11-07 04:19:02,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-11-07 04:19:02,569 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 176 [2019-11-07 04:19:02,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:19:02,574 INFO L225 Difference]: With dead ends: 1168 [2019-11-07 04:19:02,574 INFO L226 Difference]: Without dead ends: 780 [2019-11-07 04:19:02,576 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=213, Invalid=1679, Unknown=0, NotChecked=0, Total=1892 [2019-11-07 04:19:02,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2019-11-07 04:19:02,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 763. [2019-11-07 04:19:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 763 states. [2019-11-07 04:19:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 890 transitions. [2019-11-07 04:19:02,625 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 890 transitions. Word has length 176 [2019-11-07 04:19:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:19:02,630 INFO L462 AbstractCegarLoop]: Abstraction has 763 states and 890 transitions. [2019-11-07 04:19:02,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-07 04:19:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 890 transitions. [2019-11-07 04:19:02,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-11-07 04:19:02,633 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:19:02,634 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] [2019-11-07 04:19:02,634 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:19:02,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:19:02,635 INFO L82 PathProgramCache]: Analyzing trace with hash -225793300, now seen corresponding path program 1 times [2019-11-07 04:19:02,635 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:19:02,635 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969075493] [2019-11-07 04:19:02,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:19:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 04:19:03,662 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969075493] [2019-11-07 04:19:03,662 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531604758] [2019-11-07 04:19:03,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:19:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:19:04,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:19:04,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:19:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:19:04,303 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:19:04,586 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:19:04,586 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1849593884] [2019-11-07 04:19:04,619 INFO L159 IcfgInterpreter]: Started Sifa with 167 locations of interest [2019-11-07 04:19:04,620 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:19:04,626 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:19:04,631 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:19:04,632 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs