/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_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:18:00,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:18:00,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:18:00,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:18:00,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:18:00,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:18:00,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:18:00,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:18:00,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:18:00,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:18:00,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:18:00,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:18:00,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:18:00,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:18:00,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:18:00,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:18:00,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:18:00,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:18:00,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:18:00,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:18:00,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:18:00,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:18:00,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:18:00,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:18:00,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:18:00,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:18:00,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:18:00,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:18:00,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:18:00,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:18:00,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:18:00,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:18:00,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:18:00,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:18:00,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:18:00,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:18:00,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:18:00,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:18:00,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:18:00,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:18:00,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:18:00,560 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 04:18:00,576 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:18:00,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:18:00,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:18:00,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:18:00,583 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:18:00,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:18:00,583 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:18:00,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:18:00,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:18:00,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:18:00,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:18:00,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:18:00,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:18:00,586 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:18:00,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:18:00,586 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:18:00,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:18:00,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:18:00,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:18:00,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:18:00,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:18:00,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:18:00,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:18:00,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:18:00,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:18:00,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:18:00,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:18:00,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:18:00,589 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 04:18:00,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:18:00,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:18:00,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:18:00,933 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:18:00,933 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:18:00,934 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product35.cil.c [2019-11-07 04:18:00,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fdbbfa9a/f264f403e9e649f4baf917048dfa85e8/FLAGf286bc415 [2019-11-07 04:18:01,644 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:18:01,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product35.cil.c [2019-11-07 04:18:01,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fdbbfa9a/f264f403e9e649f4baf917048dfa85e8/FLAGf286bc415 [2019-11-07 04:18:01,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fdbbfa9a/f264f403e9e649f4baf917048dfa85e8 [2019-11-07 04:18:01,815 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:18:01,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:18:01,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:18:01,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:18:01,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:18:01,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:01" (1/1) ... [2019-11-07 04:18:01,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2967ace8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:01, skipping insertion in model container [2019-11-07 04:18:01,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:01" (1/1) ... [2019-11-07 04:18:01,835 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:18:01,950 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:18:02,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:18:02,777 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:18:02,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:18:03,055 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:18:03,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:03 WrapperNode [2019-11-07 04:18:03,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:18:03,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:18:03,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:18:03,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:18:03,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:03" (1/1) ... [2019-11-07 04:18:03,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:03" (1/1) ... [2019-11-07 04:18:03,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:03" (1/1) ... [2019-11-07 04:18:03,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:03" (1/1) ... [2019-11-07 04:18:03,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:03" (1/1) ... [2019-11-07 04:18:03,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:03" (1/1) ... [2019-11-07 04:18:03,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:03" (1/1) ... [2019-11-07 04:18:03,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:18:03,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:18:03,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:18:03,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:18:03,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:03" (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 04:18:03,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:18:03,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:18:03,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:18:03,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:18:03,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:18:03,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:18:03,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:18:03,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:18:03,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:18:03,384 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:18:03,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:18:03,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:18:03,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:18:03,385 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:18:03,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:18:03,386 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:18:03,386 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:18:03,386 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:18:03,386 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:18:03,386 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:18:03,387 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:18:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:18:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:18:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:18:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:18:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:18:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:18:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:18:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:18:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:18:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:18:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-11-07 04:18:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:18:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:18:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:18:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 04:18:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:18:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:18:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:18:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:18:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:18:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:18:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:18:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:18:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:18:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:18:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:18:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:18:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:18:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:18:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:18:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:18:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:18:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:18:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:18:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:18:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:18:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:18:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:18:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:18:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:18:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:18:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:18:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:18:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:18:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:18:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:18:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:18:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:18:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:18:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:18:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:18:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:18:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:18:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:18:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:18:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:18:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:18:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:18:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:18:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:18:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:18:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:18:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:18:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:18:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:18:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:18:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:18:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 04:18:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 04:18:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:18:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:18:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:18:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:18:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:18:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:18:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:18:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:18:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:18:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:18:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:18:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:18:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:18:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:18:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:18:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:18:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:18:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:18:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:18:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:18:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:18:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:18:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:18:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:18:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:18:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:18:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:18:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:18:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:18:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:18:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:18:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:18:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:18:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:18:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:18:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:18:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:18:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:18:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:18:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:18:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:18:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:18:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:18:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:18:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:18:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:18:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:18:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:18:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:18:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:18:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:18:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:18:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:18:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:18:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:18:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:18:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:18:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:18:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:18:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:18:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:18:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:18:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:18:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:18:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:18:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:18:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:18:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:18:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:18:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:18:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:18:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:18:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:18:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:18:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:18:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:18:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:18:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:18:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:18:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:18:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:18:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:18:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:18:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:18:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:18:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:18:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:18:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:18:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:18:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:18:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:18:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:18:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:18:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:18:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:18:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:18:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:18:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:18:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-11-07 04:18:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:18:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:18:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:18:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:18:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:18:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:18:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:18:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:18:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:18:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:18:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:18:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:18:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:18:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:18:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:18:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:18:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:18:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:18:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:18:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:18:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:18:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:18:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:18:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:18:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:18:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:18:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:18:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:18:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:18:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:18:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:18:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:18:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:18:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:18:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:18:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:18:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 04:18:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:18:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:18:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:18:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:18:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:18:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:18:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:18:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:18:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:18:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:18:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:18:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:18:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:18:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:18:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:18:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:18:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:18:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:18:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 04:18:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 04:18:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:18:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:18:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:18:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:18:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:18:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:18:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:18:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:18:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:18:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:18:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:18:08,347 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:18:08,348 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:18:08,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:18:08 BoogieIcfgContainer [2019-11-07 04:18:08,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:18:08,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:18:08,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:18:08,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:18:08,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:18:01" (1/3) ... [2019-11-07 04:18:08,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff4db59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:18:08, skipping insertion in model container [2019-11-07 04:18:08,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:03" (2/3) ... [2019-11-07 04:18:08,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff4db59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:18:08, skipping insertion in model container [2019-11-07 04:18:08,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:18:08" (3/3) ... [2019-11-07 04:18:08,357 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product35.cil.c [2019-11-07 04:18:08,368 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:18:08,377 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:18:08,389 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:18:08,418 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:18:08,418 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:18:08,418 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:18:08,418 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:18:08,418 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:18:08,418 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:18:08,419 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:18:08,419 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:18:08,448 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states. [2019-11-07 04:18:08,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-07 04:18:08,464 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:08,466 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] [2019-11-07 04:18:08,468 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:08,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:08,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1120904784, now seen corresponding path program 1 times [2019-11-07 04:18:08,484 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:08,485 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193183962] [2019-11-07 04:18:08,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:09,123 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 04:18:09,124 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193183962] [2019-11-07 04:18:09,125 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:09,125 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:18:09,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591676667] [2019-11-07 04:18:09,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:18:09,133 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:09,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:18:09,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:18:09,150 INFO L87 Difference]: Start difference. First operand 479 states. Second operand 2 states. [2019-11-07 04:18:09,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:09,238 INFO L93 Difference]: Finished difference Result 733 states and 875 transitions. [2019-11-07 04:18:09,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:18:09,239 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-11-07 04:18:09,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:09,260 INFO L225 Difference]: With dead ends: 733 [2019-11-07 04:18:09,261 INFO L226 Difference]: Without dead ends: 452 [2019-11-07 04:18:09,267 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 04:18:09,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2019-11-07 04:18:09,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2019-11-07 04:18:09,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-11-07 04:18:09,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 535 transitions. [2019-11-07 04:18:09,368 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 535 transitions. Word has length 132 [2019-11-07 04:18:09,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:09,370 INFO L462 AbstractCegarLoop]: Abstraction has 452 states and 535 transitions. [2019-11-07 04:18:09,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:18:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 535 transitions. [2019-11-07 04:18:09,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-11-07 04:18:09,376 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:09,376 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] [2019-11-07 04:18:09,377 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:09,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:09,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1756912078, now seen corresponding path program 1 times [2019-11-07 04:18:09,377 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:09,377 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887751109] [2019-11-07 04:18:09,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:09,773 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 04:18:09,773 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887751109] [2019-11-07 04:18:09,774 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:09,774 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:18:09,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484588322] [2019-11-07 04:18:09,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:18:09,780 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:09,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:18:09,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:18:09,780 INFO L87 Difference]: Start difference. First operand 452 states and 535 transitions. Second operand 3 states. [2019-11-07 04:18:09,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:09,855 INFO L93 Difference]: Finished difference Result 718 states and 843 transitions. [2019-11-07 04:18:09,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:18:09,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-11-07 04:18:09,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:09,862 INFO L225 Difference]: With dead ends: 718 [2019-11-07 04:18:09,862 INFO L226 Difference]: Without dead ends: 454 [2019-11-07 04:18:09,866 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 04:18:09,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-11-07 04:18:09,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2019-11-07 04:18:09,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-11-07 04:18:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 537 transitions. [2019-11-07 04:18:09,923 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 537 transitions. Word has length 133 [2019-11-07 04:18:09,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:09,924 INFO L462 AbstractCegarLoop]: Abstraction has 454 states and 537 transitions. [2019-11-07 04:18:09,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:18:09,924 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 537 transitions. [2019-11-07 04:18:09,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-07 04:18:09,927 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:09,928 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:09,928 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:09,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:09,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1298531413, now seen corresponding path program 1 times [2019-11-07 04:18:09,929 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:09,929 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389746208] [2019-11-07 04:18:09,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:10,176 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 04:18:10,177 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389746208] [2019-11-07 04:18:10,177 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:10,177 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:18:10,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677379265] [2019-11-07 04:18:10,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:18:10,179 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:10,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:18:10,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:18:10,180 INFO L87 Difference]: Start difference. First operand 454 states and 537 transitions. Second operand 3 states. [2019-11-07 04:18:10,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:10,239 INFO L93 Difference]: Finished difference Result 894 states and 1087 transitions. [2019-11-07 04:18:10,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:18:10,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2019-11-07 04:18:10,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:10,247 INFO L225 Difference]: With dead ends: 894 [2019-11-07 04:18:10,247 INFO L226 Difference]: Without dead ends: 498 [2019-11-07 04:18:10,252 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 04:18:10,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2019-11-07 04:18:10,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 497. [2019-11-07 04:18:10,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2019-11-07 04:18:10,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 611 transitions. [2019-11-07 04:18:10,305 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 611 transitions. Word has length 145 [2019-11-07 04:18:10,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:10,308 INFO L462 AbstractCegarLoop]: Abstraction has 497 states and 611 transitions. [2019-11-07 04:18:10,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:18:10,308 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 611 transitions. [2019-11-07 04:18:10,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-11-07 04:18:10,316 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:10,317 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] [2019-11-07 04:18:10,318 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:10,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:10,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1771811158, now seen corresponding path program 1 times [2019-11-07 04:18:10,319 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:10,322 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058221982] [2019-11-07 04:18:10,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:11,187 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:18:11,188 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058221982] [2019-11-07 04:18:11,188 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409114601] [2019-11-07 04:18:11,188 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 04:18:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:11,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 2936 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:18:11,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:18:11,986 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:11,986 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:18:12,259 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:12,259 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2121483343] [2019-11-07 04:18:12,299 INFO L159 IcfgInterpreter]: Started Sifa with 135 locations of interest [2019-11-07 04:18:12,299 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:18:12,314 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:18:12,321 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:18:12,322 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs