/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 OctagonDomain -i ../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 00:22:29,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 00:22:29,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 00:22:29,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 00:22:29,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 00:22:29,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 00:22:29,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 00:22:29,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 00:22:29,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 00:22:29,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 00:22:29,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 00:22:29,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 00:22:29,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 00:22:29,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 00:22:29,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 00:22:29,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 00:22:29,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 00:22:29,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 00:22:29,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 00:22:29,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 00:22:29,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 00:22:29,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 00:22:29,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 00:22:29,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 00:22:29,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 00:22:29,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 00:22:29,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 00:22:29,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 00:22:29,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 00:22:29,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 00:22:29,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 00:22:29,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 00:22:29,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 00:22:29,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 00:22:29,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 00:22:29,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 00:22:29,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 00:22:29,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 00:22:29,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 00:22:29,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 00:22:29,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 00:22:29,706 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 [2023-04-03 00:22:29,740 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 00:22:29,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 00:22:29,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 00:22:29,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 00:22:29,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 00:22:29,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 00:22:29,742 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 00:22:29,742 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 00:22:29,742 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 00:22:29,742 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 00:22:29,743 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 00:22:29,743 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 00:22:29,743 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 00:22:29,744 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 00:22:29,744 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 00:22:29,744 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 00:22:29,744 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 00:22:29,744 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 00:22:29,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 00:22:29,745 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 00:22:29,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 00:22:29,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 00:22:29,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 00:22:29,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 00:22:29,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 00:22:29,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 00:22:29,745 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 00:22:29,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 00:22:29,746 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 00:22:29,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 00:22:29,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 00:22:29,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 00:22:29,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 00:22:29,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 00:22:29,747 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 00:22:29,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 00:22:29,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 00:22:29,747 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 00:22:29,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 00:22:29,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 00:22:29,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 00:22:29,747 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 00:22:29,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 00:22:29,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 00:22:29,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 00:22:29,987 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 00:22:29,987 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 00:22:29,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2023-04-03 00:22:31,161 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 00:22:31,523 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 00:22:31,524 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2023-04-03 00:22:31,546 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3802087f8/86413af960834de0b4524a80d9335d18/FLAGf2e32dbd6 [2023-04-03 00:22:31,562 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3802087f8/86413af960834de0b4524a80d9335d18 [2023-04-03 00:22:31,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 00:22:31,567 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 00:22:31,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 00:22:31,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 00:22:31,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 00:22:31,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 12:22:31" (1/1) ... [2023-04-03 00:22:31,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@601fff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:31, skipping insertion in model container [2023-04-03 00:22:31,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 12:22:31" (1/1) ... [2023-04-03 00:22:31,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 00:22:31,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 00:22:31,930 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_spec27_productSimulator.cil.c[11237,11250] [2023-04-03 00:22:32,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 00:22:32,166 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 00:22:32,191 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_spec27_productSimulator.cil.c[11237,11250] [2023-04-03 00:22:32,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 00:22:32,295 WARN L667 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 00:22:32,301 INFO L208 MainTranslator]: Completed translation [2023-04-03 00:22:32,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:32 WrapperNode [2023-04-03 00:22:32,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 00:22:32,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 00:22:32,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 00:22:32,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 00:22:32,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:32" (1/1) ... [2023-04-03 00:22:32,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:32" (1/1) ... [2023-04-03 00:22:32,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:32" (1/1) ... [2023-04-03 00:22:32,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:32" (1/1) ... [2023-04-03 00:22:32,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:32" (1/1) ... [2023-04-03 00:22:32,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:32" (1/1) ... [2023-04-03 00:22:32,442 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:32" (1/1) ... [2023-04-03 00:22:32,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:32" (1/1) ... [2023-04-03 00:22:32,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 00:22:32,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 00:22:32,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 00:22:32,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 00:22:32,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:32" (1/1) ... [2023-04-03 00:22:32,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 00:22:32,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 00:22:32,527 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) [2023-04-03 00:22:32,548 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 [2023-04-03 00:22:32,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 00:22:32,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 00:22:32,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 00:22:32,566 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 00:22:32,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 00:22:32,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 00:22:32,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 00:22:32,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 00:22:32,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 00:22:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 00:22:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 00:22:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2023-04-03 00:22:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 00:22:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 00:22:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 00:22:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 00:22:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2023-04-03 00:22:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2023-04-03 00:22:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2023-04-03 00:22:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2023-04-03 00:22:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2023-04-03 00:22:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-04-03 00:22:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-04-03 00:22:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2023-04-03 00:22:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2023-04-03 00:22:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2023-04-03 00:22:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2023-04-03 00:22:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-04-03 00:22:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-04-03 00:22:32,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2023-04-03 00:22:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2023-04-03 00:22:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-04-03 00:22:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-04-03 00:22:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2023-04-03 00:22:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2023-04-03 00:22:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-04-03 00:22:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2023-04-03 00:22:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-04-03 00:22:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2023-04-03 00:22:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-04-03 00:22:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-04-03 00:22:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2023-04-03 00:22:32,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2023-04-03 00:22:32,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2023-04-03 00:22:32,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-04-03 00:22:32,571 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 00:22:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2023-04-03 00:22:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2023-04-03 00:22:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2023-04-03 00:22:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2023-04-03 00:22:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-04-03 00:22:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-04-03 00:22:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-04-03 00:22:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-04-03 00:22:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2023-04-03 00:22:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2023-04-03 00:22:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2023-04-03 00:22:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2023-04-03 00:22:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-04-03 00:22:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-04-03 00:22:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-04-03 00:22:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-04-03 00:22:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2023-04-03 00:22:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2023-04-03 00:22:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-04-03 00:22:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2023-04-03 00:22:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2023-04-03 00:22:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2023-04-03 00:22:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2023-04-03 00:22:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2023-04-03 00:22:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2023-04-03 00:22:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2023-04-03 00:22:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2023-04-03 00:22:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2023-04-03 00:22:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2023-04-03 00:22:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2023-04-03 00:22:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2023-04-03 00:22:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2023-04-03 00:22:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2023-04-03 00:22:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2023-04-03 00:22:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2023-04-03 00:22:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2023-04-03 00:22:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2023-04-03 00:22:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2023-04-03 00:22:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2023-04-03 00:22:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2023-04-03 00:22:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2023-04-03 00:22:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 00:22:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 00:22:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2023-04-03 00:22:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2023-04-03 00:22:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2023-04-03 00:22:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2023-04-03 00:22:32,581 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-04-03 00:22:32,582 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2023-04-03 00:22:32,582 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2023-04-03 00:22:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2023-04-03 00:22:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2023-04-03 00:22:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2023-04-03 00:22:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2023-04-03 00:22:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2023-04-03 00:22:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2023-04-03 00:22:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2023-04-03 00:22:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2023-04-03 00:22:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2023-04-03 00:22:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2023-04-03 00:22:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2023-04-03 00:22:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2023-04-03 00:22:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2023-04-03 00:22:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2023-04-03 00:22:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-04-03 00:22:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2023-04-03 00:22:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2023-04-03 00:22:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 00:22:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2023-04-03 00:22:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2023-04-03 00:22:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2023-04-03 00:22:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2023-04-03 00:22:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-04-03 00:22:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-04-03 00:22:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2023-04-03 00:22:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2023-04-03 00:22:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2023-04-03 00:22:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-04-03 00:22:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-04-03 00:22:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2023-04-03 00:22:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2023-04-03 00:22:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-04-03 00:22:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-04-03 00:22:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2023-04-03 00:22:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-04-03 00:22:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2023-04-03 00:22:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-04-03 00:22:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2023-04-03 00:22:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-04-03 00:22:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2023-04-03 00:22:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2023-04-03 00:22:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2023-04-03 00:22:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-04-03 00:22:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-04-03 00:22:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2023-04-03 00:22:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2023-04-03 00:22:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2023-04-03 00:22:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2023-04-03 00:22:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2023-04-03 00:22:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2023-04-03 00:22:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2023-04-03 00:22:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-04-03 00:22:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-04-03 00:22:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2023-04-03 00:22:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-04-03 00:22:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2023-04-03 00:22:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2023-04-03 00:22:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2023-04-03 00:22:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2023-04-03 00:22:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-04-03 00:22:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2023-04-03 00:22:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2023-04-03 00:22:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2023-04-03 00:22:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-04-03 00:22:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-04-03 00:22:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-04-03 00:22:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2023-04-03 00:22:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2023-04-03 00:22:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2023-04-03 00:22:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2023-04-03 00:22:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2023-04-03 00:22:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2023-04-03 00:22:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2023-04-03 00:22:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2023-04-03 00:22:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2023-04-03 00:22:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2023-04-03 00:22:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2023-04-03 00:22:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2023-04-03 00:22:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2023-04-03 00:22:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2023-04-03 00:22:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2023-04-03 00:22:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2023-04-03 00:22:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 00:22:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 00:22:32,929 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 00:22:32,933 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 00:22:34,192 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 00:22:34,975 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 00:22:34,976 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-03 00:22:34,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 12:22:34 BoogieIcfgContainer [2023-04-03 00:22:34,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 00:22:34,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 00:22:34,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 00:22:34,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 00:22:34,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 12:22:31" (1/3) ... [2023-04-03 00:22:34,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752625eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 12:22:34, skipping insertion in model container [2023-04-03 00:22:34,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:22:32" (2/3) ... [2023-04-03 00:22:34,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752625eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 12:22:34, skipping insertion in model container [2023-04-03 00:22:34,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 12:22:34" (3/3) ... [2023-04-03 00:22:34,989 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_productSimulator.cil.c [2023-04-03 00:22:35,006 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 00:22:35,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 00:22:35,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 00:22:35,085 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;@dab2a74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 00:22:35,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 00:22:35,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 609 states, 316 states have (on average 1.2563291139240507) internal successors, (397), 351 states have internal predecessors, (397), 180 states have call successors, (180), 107 states have call predecessors, (180), 107 states have return successors, (180), 166 states have call predecessors, (180), 180 states have call successors, (180) [2023-04-03 00:22:35,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-04-03 00:22:35,112 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:22:35,113 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:22:35,113 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:22:35,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:22:35,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1462359402, now seen corresponding path program 1 times [2023-04-03 00:22:35,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:22:35,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939034219] [2023-04-03 00:22:35,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:22:35,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:22:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:22:36,164 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-04-03 00:22:36,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:22:36,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939034219] [2023-04-03 00:22:36,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939034219] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:22:36,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:22:36,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 00:22:36,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106684081] [2023-04-03 00:22:36,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:22:36,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 00:22:36,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:22:36,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 00:22:36,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 00:22:36,215 INFO L87 Difference]: Start difference. First operand has 609 states, 316 states have (on average 1.2563291139240507) internal successors, (397), 351 states have internal predecessors, (397), 180 states have call successors, (180), 107 states have call predecessors, (180), 107 states have return successors, (180), 166 states have call predecessors, (180), 180 states have call successors, (180) Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 00:22:36,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:22:36,664 INFO L93 Difference]: Finished difference Result 1140 states and 1446 transitions. [2023-04-03 00:22:36,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 00:22:36,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 168 [2023-04-03 00:22:36,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:22:36,693 INFO L225 Difference]: With dead ends: 1140 [2023-04-03 00:22:36,693 INFO L226 Difference]: Without dead ends: 582 [2023-04-03 00:22:36,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-03 00:22:36,707 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 3 mSDsluCounter, 2686 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3360 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 00:22:36,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3360 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 00:22:36,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-04-03 00:22:36,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2023-04-03 00:22:36,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 303 states have (on average 1.231023102310231) internal successors, (373), 335 states have internal predecessors, (373), 175 states have call successors, (175), 107 states have call predecessors, (175), 103 states have return successors, (170), 156 states have call predecessors, (170), 170 states have call successors, (170) [2023-04-03 00:22:36,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 718 transitions. [2023-04-03 00:22:36,837 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 718 transitions. Word has length 168 [2023-04-03 00:22:36,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:22:36,838 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 718 transitions. [2023-04-03 00:22:36,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 00:22:36,839 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 718 transitions. [2023-04-03 00:22:36,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-04-03 00:22:36,853 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:22:36,854 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:22:36,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 00:22:36,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:22:36,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:22:36,856 INFO L85 PathProgramCache]: Analyzing trace with hash 262188108, now seen corresponding path program 1 times [2023-04-03 00:22:36,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:22:36,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789746933] [2023-04-03 00:22:36,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:22:36,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:22:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:22:37,164 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-04-03 00:22:37,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:22:37,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789746933] [2023-04-03 00:22:37,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789746933] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:22:37,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:22:37,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 00:22:37,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315052775] [2023-04-03 00:22:37,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:22:37,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 00:22:37,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:22:37,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 00:22:37,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 00:22:37,169 INFO L87 Difference]: Start difference. First operand 582 states and 718 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-04-03 00:22:37,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:22:37,832 INFO L93 Difference]: Finished difference Result 1124 states and 1404 transitions. [2023-04-03 00:22:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 00:22:37,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 174 [2023-04-03 00:22:37,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:22:37,844 INFO L225 Difference]: With dead ends: 1124 [2023-04-03 00:22:37,844 INFO L226 Difference]: Without dead ends: 582 [2023-04-03 00:22:37,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 00:22:37,851 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 706 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 00:22:37,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 960 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 00:22:37,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-04-03 00:22:37,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2023-04-03 00:22:37,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 304 states have (on average 1.2203947368421053) internal successors, (371), 334 states have internal predecessors, (371), 173 states have call successors, (173), 108 states have call predecessors, (173), 104 states have return successors, (168), 156 states have call predecessors, (168), 168 states have call successors, (168) [2023-04-03 00:22:37,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 712 transitions. [2023-04-03 00:22:37,897 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 712 transitions. Word has length 174 [2023-04-03 00:22:37,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:22:37,897 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 712 transitions. [2023-04-03 00:22:37,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-04-03 00:22:37,898 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 712 transitions. [2023-04-03 00:22:37,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-03 00:22:37,904 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:22:37,904 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:22:37,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 00:22:37,904 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:22:37,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:22:37,905 INFO L85 PathProgramCache]: Analyzing trace with hash -144906218, now seen corresponding path program 1 times [2023-04-03 00:22:37,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:22:37,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615113176] [2023-04-03 00:22:37,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:22:37,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:22:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:22:38,125 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-04-03 00:22:38,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:22:38,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615113176] [2023-04-03 00:22:38,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615113176] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:22:38,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:22:38,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 00:22:38,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778524655] [2023-04-03 00:22:38,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:22:38,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 00:22:38,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:22:38,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 00:22:38,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:22:38,128 INFO L87 Difference]: Start difference. First operand 582 states and 712 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-04-03 00:22:38,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:22:38,314 INFO L93 Difference]: Finished difference Result 1638 states and 2049 transitions. [2023-04-03 00:22:38,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 00:22:38,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 192 [2023-04-03 00:22:38,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:22:38,321 INFO L225 Difference]: With dead ends: 1638 [2023-04-03 00:22:38,321 INFO L226 Difference]: Without dead ends: 1096 [2023-04-03 00:22:38,324 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 [2023-04-03 00:22:38,324 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 672 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 00:22:38,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 1289 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 00:22:38,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2023-04-03 00:22:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1093. [2023-04-03 00:22:38,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 572 states have (on average 1.2185314685314685) internal successors, (697), 627 states have internal predecessors, (697), 320 states have call successors, (320), 204 states have call predecessors, (320), 200 states have return successors, (337), 294 states have call predecessors, (337), 312 states have call successors, (337) [2023-04-03 00:22:38,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1354 transitions. [2023-04-03 00:22:38,386 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1354 transitions. Word has length 192 [2023-04-03 00:22:38,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:22:38,386 INFO L495 AbstractCegarLoop]: Abstraction has 1093 states and 1354 transitions. [2023-04-03 00:22:38,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-04-03 00:22:38,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1354 transitions. [2023-04-03 00:22:38,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-04-03 00:22:38,391 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:22:38,391 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:22:38,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 00:22:38,392 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:22:38,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:22:38,392 INFO L85 PathProgramCache]: Analyzing trace with hash 791060532, now seen corresponding path program 1 times [2023-04-03 00:22:38,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:22:38,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577289036] [2023-04-03 00:22:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:22:38,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:22:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:22:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-04-03 00:22:38,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:22:38,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577289036] [2023-04-03 00:22:38,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577289036] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:22:38,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:22:38,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 00:22:38,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922289889] [2023-04-03 00:22:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:22:38,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 00:22:38,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:22:38,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 00:22:38,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:22:38,550 INFO L87 Difference]: Start difference. First operand 1093 states and 1354 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-04-03 00:22:38,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:22:38,655 INFO L93 Difference]: Finished difference Result 1096 states and 1356 transitions. [2023-04-03 00:22:38,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 00:22:38,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 193 [2023-04-03 00:22:38,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:22:38,660 INFO L225 Difference]: With dead ends: 1096 [2023-04-03 00:22:38,660 INFO L226 Difference]: Without dead ends: 582 [2023-04-03 00:22:38,661 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 [2023-04-03 00:22:38,666 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 653 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 00:22:38,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 683 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 00:22:38,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-04-03 00:22:38,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2023-04-03 00:22:38,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 305 states have (on average 1.2065573770491804) internal successors, (368), 333 states have internal predecessors, (368), 171 states have call successors, (171), 109 states have call predecessors, (171), 105 states have return successors, (166), 156 states have call predecessors, (166), 166 states have call successors, (166) [2023-04-03 00:22:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 705 transitions. [2023-04-03 00:22:38,699 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 705 transitions. Word has length 193 [2023-04-03 00:22:38,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:22:38,699 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 705 transitions. [2023-04-03 00:22:38,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-04-03 00:22:38,700 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 705 transitions. [2023-04-03 00:22:38,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-04-03 00:22:38,703 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:22:38,706 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:22:38,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 00:22:38,706 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:22:38,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:22:38,707 INFO L85 PathProgramCache]: Analyzing trace with hash 680266792, now seen corresponding path program 1 times [2023-04-03 00:22:38,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:22:38,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730372278] [2023-04-03 00:22:38,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:22:38,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:22:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:22:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-04-03 00:22:38,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:22:38,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730372278] [2023-04-03 00:22:38,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730372278] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:22:38,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:22:38,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 00:22:38,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694917950] [2023-04-03 00:22:38,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:22:38,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 00:22:38,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:22:38,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 00:22:38,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 00:22:38,925 INFO L87 Difference]: Start difference. First operand 582 states and 705 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2023-04-03 00:22:39,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:22:39,481 INFO L93 Difference]: Finished difference Result 1107 states and 1340 transitions. [2023-04-03 00:22:39,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 00:22:39,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 205 [2023-04-03 00:22:39,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:22:39,486 INFO L225 Difference]: With dead ends: 1107 [2023-04-03 00:22:39,486 INFO L226 Difference]: Without dead ends: 587 [2023-04-03 00:22:39,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 00:22:39,488 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 647 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 00:22:39,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 961 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 00:22:39,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-04-03 00:22:39,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 581. [2023-04-03 00:22:39,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 306 states have (on average 1.1699346405228759) internal successors, (358), 323 states have internal predecessors, (358), 168 states have call successors, (168), 110 states have call predecessors, (168), 106 states have return successors, (163), 156 states have call predecessors, (163), 163 states have call successors, (163) [2023-04-03 00:22:39,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 689 transitions. [2023-04-03 00:22:39,525 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 689 transitions. Word has length 205 [2023-04-03 00:22:39,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:22:39,526 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 689 transitions. [2023-04-03 00:22:39,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2023-04-03 00:22:39,526 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 689 transitions. [2023-04-03 00:22:39,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-04-03 00:22:39,530 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:22:39,530 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:22:39,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 00:22:39,530 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:22:39,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:22:39,531 INFO L85 PathProgramCache]: Analyzing trace with hash -833276840, now seen corresponding path program 1 times [2023-04-03 00:22:39,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:22:39,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014940081] [2023-04-03 00:22:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:22:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:22:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:22:39,779 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-04-03 00:22:39,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:22:39,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014940081] [2023-04-03 00:22:39,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014940081] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:22:39,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:22:39,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 00:22:39,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614708300] [2023-04-03 00:22:39,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:22:39,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 00:22:39,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:22:39,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 00:22:39,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:22:39,782 INFO L87 Difference]: Start difference. First operand 581 states and 689 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-04-03 00:22:39,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:22:39,899 INFO L93 Difference]: Finished difference Result 913 states and 1078 transitions. [2023-04-03 00:22:39,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 00:22:39,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 226 [2023-04-03 00:22:39,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:22:39,903 INFO L225 Difference]: With dead ends: 913 [2023-04-03 00:22:39,903 INFO L226 Difference]: Without dead ends: 583 [2023-04-03 00:22:39,904 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 [2023-04-03 00:22:39,905 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 0 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 00:22:39,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1256 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 00:22:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-04-03 00:22:39,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2023-04-03 00:22:39,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 308 states have (on average 1.1688311688311688) internal successors, (360), 325 states have internal predecessors, (360), 168 states have call successors, (168), 110 states have call predecessors, (168), 106 states have return successors, (163), 156 states have call predecessors, (163), 163 states have call successors, (163) [2023-04-03 00:22:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 691 transitions. [2023-04-03 00:22:39,939 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 691 transitions. Word has length 226 [2023-04-03 00:22:39,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:22:39,939 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 691 transitions. [2023-04-03 00:22:39,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-04-03 00:22:39,940 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 691 transitions. [2023-04-03 00:22:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-04-03 00:22:39,943 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:22:39,944 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:22:39,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 00:22:39,944 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:22:39,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:22:39,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1166375255, now seen corresponding path program 1 times [2023-04-03 00:22:39,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:22:39,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931935881] [2023-04-03 00:22:39,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:22:39,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:22:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:22:40,181 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-04-03 00:22:40,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:22:40,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931935881] [2023-04-03 00:22:40,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931935881] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:22:40,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:22:40,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 00:22:40,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459864635] [2023-04-03 00:22:40,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:22:40,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 00:22:40,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:22:40,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 00:22:40,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:22:40,184 INFO L87 Difference]: Start difference. First operand 583 states and 691 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-04-03 00:22:40,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:22:40,305 INFO L93 Difference]: Finished difference Result 1110 states and 1349 transitions. [2023-04-03 00:22:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 00:22:40,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 233 [2023-04-03 00:22:40,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:22:40,309 INFO L225 Difference]: With dead ends: 1110 [2023-04-03 00:22:40,309 INFO L226 Difference]: Without dead ends: 637 [2023-04-03 00:22:40,311 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 [2023-04-03 00:22:40,311 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 68 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 00:22:40,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1259 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 00:22:40,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2023-04-03 00:22:40,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 636. [2023-04-03 00:22:40,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 351 states have (on average 1.2165242165242165) internal successors, (427), 371 states have internal predecessors, (427), 178 states have call successors, (178), 110 states have call predecessors, (178), 106 states have return successors, (173), 166 states have call predecessors, (173), 173 states have call successors, (173) [2023-04-03 00:22:40,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 778 transitions. [2023-04-03 00:22:40,350 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 778 transitions. Word has length 233 [2023-04-03 00:22:40,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:22:40,350 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 778 transitions. [2023-04-03 00:22:40,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-04-03 00:22:40,351 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 778 transitions. [2023-04-03 00:22:40,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-04-03 00:22:40,354 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:22:40,354 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:22:40,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 00:22:40,355 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:22:40,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:22:40,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1670159965, now seen corresponding path program 1 times [2023-04-03 00:22:40,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:22:40,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768510609] [2023-04-03 00:22:40,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:22:40,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:22:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:22:40,629 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-04-03 00:22:40,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:22:40,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768510609] [2023-04-03 00:22:40,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768510609] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 00:22:40,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849383064] [2023-04-03 00:22:40,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:22:40,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 00:22:40,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 00:22:40,637 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) [2023-04-03 00:22:40,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 00:22:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:22:41,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 3121 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-03 00:22:41,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 00:22:41,468 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-04-03 00:22:41,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 00:22:41,787 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-04-03 00:22:41,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849383064] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 00:22:41,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [961807817] [2023-04-03 00:22:41,810 INFO L159 IcfgInterpreter]: Started Sifa with 209 locations of interest [2023-04-03 00:22:41,811 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 00:22:41,814 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 00:22:41,819 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 00:22:41,819 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 00:22:46,603 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 334 for LOIs [2023-04-03 00:22:47,222 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 383 for LOIs