/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/product-lines/email_spec3_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 11:50:29,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 11:50:29,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 11:50:29,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 11:50:29,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 11:50:29,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 11:50:29,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 11:50:29,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 11:50:29,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 11:50:29,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 11:50:29,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 11:50:29,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 11:50:29,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 11:50:29,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 11:50:29,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 11:50:29,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 11:50:29,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 11:50:29,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 11:50:29,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 11:50:29,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 11:50:29,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 11:50:29,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 11:50:29,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 11:50:29,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 11:50:29,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 11:50:29,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 11:50:29,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 11:50:29,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 11:50:29,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 11:50:29,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 11:50:29,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 11:50:29,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 11:50:29,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 11:50:29,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 11:50:29,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 11:50:29,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 11:50:29,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 11:50:29,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 11:50:29,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 11:50:29,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 11:50:29,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 11:50:29,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 11:50:29,433 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 11:50:29,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 11:50:29,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 11:50:29,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 11:50:29,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 11:50:29,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 11:50:29,434 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 11:50:29,434 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 11:50:29,434 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 11:50:29,435 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 11:50:29,435 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 11:50:29,435 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 11:50:29,436 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 11:50:29,436 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 11:50:29,436 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 11:50:29,436 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 11:50:29,436 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 11:50:29,436 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 11:50:29,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 11:50:29,437 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 11:50:29,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 11:50:29,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 11:50:29,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 11:50:29,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 11:50:29,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 11:50:29,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 11:50:29,437 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 11:50:29,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 11:50:29,437 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 11:50:29,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 11:50:29,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 11:50:29,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 11:50:29,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:50:29,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 11:50:29,438 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 11:50:29,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 11:50:29,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 11:50:29,439 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 11:50:29,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 11:50:29,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 11:50:29,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 11:50:29,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 11:50:29,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 11:50:29,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 11:50:29,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 11:50:29,666 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 11:50:29,666 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 11:50:29,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product17.cil.c [2023-04-01 11:50:30,730 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 11:50:31,031 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 11:50:31,032 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product17.cil.c [2023-04-01 11:50:31,049 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a8bf0288/9205ea5621da43ad9cb7d4ebfcb69714/FLAG1b1af28d2 [2023-04-01 11:50:31,066 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a8bf0288/9205ea5621da43ad9cb7d4ebfcb69714 [2023-04-01 11:50:31,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 11:50:31,071 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 11:50:31,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 11:50:31,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 11:50:31,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 11:50:31,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:50:31" (1/1) ... [2023-04-01 11:50:31,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3468da63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31, skipping insertion in model container [2023-04-01 11:50:31,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:50:31" (1/1) ... [2023-04-01 11:50:31,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 11:50:31,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 11:50:31,577 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product17.cil.c[63718,63731] [2023-04-01 11:50:31,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:50:31,598 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 11:50:31,679 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product17.cil.c[63718,63731] [2023-04-01 11:50:31,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:50:31,696 WARN L667 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 11:50:31,701 INFO L208 MainTranslator]: Completed translation [2023-04-01 11:50:31,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31 WrapperNode [2023-04-01 11:50:31,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 11:50:31,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 11:50:31,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 11:50:31,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 11:50:31,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31" (1/1) ... [2023-04-01 11:50:31,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31" (1/1) ... [2023-04-01 11:50:31,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31" (1/1) ... [2023-04-01 11:50:31,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31" (1/1) ... [2023-04-01 11:50:31,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31" (1/1) ... [2023-04-01 11:50:31,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31" (1/1) ... [2023-04-01 11:50:31,824 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31" (1/1) ... [2023-04-01 11:50:31,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31" (1/1) ... [2023-04-01 11:50:31,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 11:50:31,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 11:50:31,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 11:50:31,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 11:50:31,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31" (1/1) ... [2023-04-01 11:50:31,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:50:31,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:50:31,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 11:50:31,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 11:50:31,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 11:50:31,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 11:50:31,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 11:50:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 11:50:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2023-04-01 11:50:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2023-04-01 11:50:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2023-04-01 11:50:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2023-04-01 11:50:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2023-04-01 11:50:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2023-04-01 11:50:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2023-04-01 11:50:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 11:50:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-04-01 11:50:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2023-04-01 11:50:31,924 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2023-04-01 11:50:31,924 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2023-04-01 11:50:31,924 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2023-04-01 11:50:31,924 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-04-01 11:50:31,925 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-04-01 11:50:31,925 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2023-04-01 11:50:31,925 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2023-04-01 11:50:31,925 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2023-04-01 11:50:31,925 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-04-01 11:50:31,925 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-04-01 11:50:31,925 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2023-04-01 11:50:31,926 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2023-04-01 11:50:31,926 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2023-04-01 11:50:31,926 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2023-04-01 11:50:31,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2023-04-01 11:50:31,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2023-04-01 11:50:31,927 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2023-04-01 11:50:31,927 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2023-04-01 11:50:31,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2023-04-01 11:50:31,927 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2023-04-01 11:50:31,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-04-01 11:50:31,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2023-04-01 11:50:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-04-01 11:50:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2023-04-01 11:50:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-04-01 11:50:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-04-01 11:50:31,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2023-04-01 11:50:31,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2023-04-01 11:50:31,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2023-04-01 11:50:31,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-04-01 11:50:31,930 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2023-04-01 11:50:31,930 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2023-04-01 11:50:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-04-01 11:50:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-04-01 11:50:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-04-01 11:50:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-04-01 11:50:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-04-01 11:50:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2023-04-01 11:50:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-04-01 11:50:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2023-04-01 11:50:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-04-01 11:50:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2023-04-01 11:50:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 11:50:31,932 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 11:50:31,932 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 11:50:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 11:50:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 11:50:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 11:50:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 11:50:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-04-01 11:50:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-04-01 11:50:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2023-04-01 11:50:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-04-01 11:50:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-04-01 11:50:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-04-01 11:50:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2023-04-01 11:50:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-04-01 11:50:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2023-04-01 11:50:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-04-01 11:50:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-04-01 11:50:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2023-04-01 11:50:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 11:50:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-04-01 11:50:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-04-01 11:50:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-04-01 11:50:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2023-04-01 11:50:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2023-04-01 11:50:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 11:50:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 11:50:32,177 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 11:50:32,187 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 11:50:33,045 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 11:50:33,651 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 11:50:33,651 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 11:50:33,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:50:33 BoogieIcfgContainer [2023-04-01 11:50:33,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 11:50:33,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 11:50:33,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 11:50:33,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 11:50:33,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:50:31" (1/3) ... [2023-04-01 11:50:33,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44efebc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:50:33, skipping insertion in model container [2023-04-01 11:50:33,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:50:31" (2/3) ... [2023-04-01 11:50:33,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44efebc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:50:33, skipping insertion in model container [2023-04-01 11:50:33,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:50:33" (3/3) ... [2023-04-01 11:50:33,667 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product17.cil.c [2023-04-01 11:50:33,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 11:50:33,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 11:50:33,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 11:50:33,737 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5799ecdd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 11:50:33,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 11:50:33,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 380 states, 190 states have (on average 1.2) internal successors, (228), 198 states have internal predecessors, (228), 111 states have call successors, (111), 70 states have call predecessors, (111), 70 states have return successors, (111), 109 states have call predecessors, (111), 111 states have call successors, (111) [2023-04-01 11:50:33,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-04-01 11:50:33,755 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:50:33,755 INFO L195 NwaCegarLoop]: 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] [2023-04-01 11:50:33,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:50:33,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:50:33,765 INFO L85 PathProgramCache]: Analyzing trace with hash -396464349, now seen corresponding path program 1 times [2023-04-01 11:50:33,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:50:33,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121773384] [2023-04-01 11:50:33,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:50:33,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:50:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:50:34,232 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 11:50:34,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:50:34,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121773384] [2023-04-01 11:50:34,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121773384] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:50:34,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:50:34,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 11:50:34,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608401171] [2023-04-01 11:50:34,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:50:34,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 11:50:34,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:50:34,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 11:50:34,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 11:50:34,259 INFO L87 Difference]: Start difference. First operand has 380 states, 190 states have (on average 1.2) internal successors, (228), 198 states have internal predecessors, (228), 111 states have call successors, (111), 70 states have call predecessors, (111), 70 states have return successors, (111), 109 states have call predecessors, (111), 111 states have call successors, (111) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:50:34,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:50:34,355 INFO L93 Difference]: Finished difference Result 517 states and 620 transitions. [2023-04-01 11:50:34,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 11:50:34,358 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 141 [2023-04-01 11:50:34,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:50:34,367 INFO L225 Difference]: With dead ends: 517 [2023-04-01 11:50:34,367 INFO L226 Difference]: Without dead ends: 337 [2023-04-01 11:50:34,370 INFO L412 NwaCegarLoop]: 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 [2023-04-01 11:50:34,372 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:50:34,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 369 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:50:34,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-04-01 11:50:34,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2023-04-01 11:50:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 170 states have (on average 1.1941176470588235) internal successors, (203), 175 states have internal predecessors, (203), 101 states have call successors, (101), 69 states have call predecessors, (101), 65 states have return successors, (95), 94 states have call predecessors, (95), 95 states have call successors, (95) [2023-04-01 11:50:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 399 transitions. [2023-04-01 11:50:34,418 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 399 transitions. Word has length 141 [2023-04-01 11:50:34,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:50:34,419 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 399 transitions. [2023-04-01 11:50:34,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:50:34,419 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 399 transitions. [2023-04-01 11:50:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-04-01 11:50:34,422 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:50:34,422 INFO L195 NwaCegarLoop]: 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] [2023-04-01 11:50:34,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 11:50:34,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:50:34,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:50:34,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1938174787, now seen corresponding path program 1 times [2023-04-01 11:50:34,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:50:34,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104053660] [2023-04-01 11:50:34,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:50:34,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:50:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:50:34,702 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 11:50:34,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:50:34,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104053660] [2023-04-01 11:50:34,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104053660] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:50:34,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:50:34,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:50:34,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872694319] [2023-04-01 11:50:34,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:50:34,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:50:34,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:50:34,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:50:34,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:50:34,707 INFO L87 Difference]: Start difference. First operand 337 states and 399 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:50:34,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:50:34,820 INFO L93 Difference]: Finished difference Result 502 states and 585 transitions. [2023-04-01 11:50:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:50:34,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 142 [2023-04-01 11:50:34,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:50:34,828 INFO L225 Difference]: With dead ends: 502 [2023-04-01 11:50:34,828 INFO L226 Difference]: Without dead ends: 339 [2023-04-01 11:50:34,834 INFO L412 NwaCegarLoop]: 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 [2023-04-01 11:50:34,836 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 0 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:50:34,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 718 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:50:34,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-04-01 11:50:34,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2023-04-01 11:50:34,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 172 states have (on average 1.191860465116279) internal successors, (205), 177 states have internal predecessors, (205), 101 states have call successors, (101), 69 states have call predecessors, (101), 65 states have return successors, (95), 94 states have call predecessors, (95), 95 states have call successors, (95) [2023-04-01 11:50:34,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 401 transitions. [2023-04-01 11:50:34,867 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 401 transitions. Word has length 142 [2023-04-01 11:50:34,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:50:34,867 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 401 transitions. [2023-04-01 11:50:34,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:50:34,868 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 401 transitions. [2023-04-01 11:50:34,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-04-01 11:50:34,870 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:50:34,871 INFO L195 NwaCegarLoop]: 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] [2023-04-01 11:50:34,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 11:50:34,871 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:50:34,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:50:34,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1856845488, now seen corresponding path program 1 times [2023-04-01 11:50:34,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:50:34,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147605152] [2023-04-01 11:50:34,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:50:34,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:50:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:50:35,036 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 11:50:35,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:50:35,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147605152] [2023-04-01 11:50:35,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147605152] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:50:35,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:50:35,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:50:35,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877802795] [2023-04-01 11:50:35,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:50:35,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:50:35,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:50:35,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:50:35,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:50:35,039 INFO L87 Difference]: Start difference. First operand 339 states and 401 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:50:35,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:50:35,133 INFO L93 Difference]: Finished difference Result 660 states and 809 transitions. [2023-04-01 11:50:35,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:50:35,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 147 [2023-04-01 11:50:35,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:50:35,136 INFO L225 Difference]: With dead ends: 660 [2023-04-01 11:50:35,136 INFO L226 Difference]: Without dead ends: 379 [2023-04-01 11:50:35,139 INFO L412 NwaCegarLoop]: 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 [2023-04-01 11:50:35,142 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 52 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:50:35,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 722 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:50:35,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-04-01 11:50:35,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 378. [2023-04-01 11:50:35,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 203 states have (on average 1.2660098522167487) internal successors, (257), 208 states have internal predecessors, (257), 109 states have call successors, (109), 69 states have call predecessors, (109), 65 states have return successors, (103), 102 states have call predecessors, (103), 103 states have call successors, (103) [2023-04-01 11:50:35,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 469 transitions. [2023-04-01 11:50:35,167 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 469 transitions. Word has length 147 [2023-04-01 11:50:35,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:50:35,167 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 469 transitions. [2023-04-01 11:50:35,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:50:35,168 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 469 transitions. [2023-04-01 11:50:35,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-04-01 11:50:35,172 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:50:35,172 INFO L195 NwaCegarLoop]: 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] [2023-04-01 11:50:35,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 11:50:35,173 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:50:35,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:50:35,174 INFO L85 PathProgramCache]: Analyzing trace with hash 890405526, now seen corresponding path program 1 times [2023-04-01 11:50:35,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:50:35,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088878583] [2023-04-01 11:50:35,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:50:35,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:50:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:50:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 11:50:35,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:50:35,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088878583] [2023-04-01 11:50:35,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088878583] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 11:50:35,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471500809] [2023-04-01 11:50:35,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:50:35,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:50:35,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:50:35,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 11:50:35,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 11:50:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:50:35,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 2236 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 11:50:35,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:50:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 11:50:36,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 11:50:36,211 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 11:50:36,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471500809] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 11:50:36,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1422126362] [2023-04-01 11:50:36,263 INFO L159 IcfgInterpreter]: Started Sifa with 137 locations of interest [2023-04-01 11:50:36,263 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 11:50:36,266 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 11:50:36,270 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 11:50:36,270 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 11:50:45,173 WARN L223 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 501 DAG size of output: 501 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:50:50,319 WARN L223 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 501 DAG size of output: 501 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:50:51,602 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 340 for LOIs [2023-04-01 11:50:52,140 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 614 for LOIs [2023-04-01 11:51:06,838 WARN L223 SmtUtils]: Spent 12.38s on a formula simplification. DAG size of input: 614 DAG size of output: 614 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:51:19,065 WARN L223 SmtUtils]: Spent 12.22s on a formula simplification. DAG size of input: 614 DAG size of output: 614 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:51:31,222 WARN L223 SmtUtils]: Spent 12.15s on a formula simplification. DAG size of input: 614 DAG size of output: 614 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:51:43,380 WARN L223 SmtUtils]: Spent 12.15s on a formula simplification. DAG size of input: 614 DAG size of output: 614 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)