/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 11:53:27,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 11:53:27,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 11:53:28,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 11:53:28,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 11:53:28,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 11:53:28,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 11:53:28,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 11:53:28,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 11:53:28,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 11:53:28,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 11:53:28,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 11:53:28,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 11:53:28,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 11:53:28,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 11:53:28,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 11:53:28,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 11:53:28,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 11:53:28,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 11:53:28,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 11:53:28,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 11:53:28,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 11:53:28,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 11:53:28,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 11:53:28,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 11:53:28,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 11:53:28,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 11:53:28,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 11:53:28,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 11:53:28,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 11:53:28,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 11:53:28,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 11:53:28,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 11:53:28,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 11:53:28,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 11:53:28,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 11:53:28,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 11:53:28,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 11:53:28,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 11:53:28,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 11:53:28,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 11:53:28,108 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 11:53:28,152 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 11:53:28,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 11:53:28,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 11:53:28,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 11:53:28,155 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 11:53:28,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 11:53:28,155 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 11:53:28,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 11:53:28,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 11:53:28,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 11:53:28,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 11:53:28,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 11:53:28,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 11:53:28,158 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 11:53:28,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 11:53:28,158 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 11:53:28,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 11:53:28,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 11:53:28,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 11:53:28,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 11:53:28,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 11:53:28,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 11:53:28,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 11:53:28,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 11:53:28,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 11:53:28,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 11:53:28,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 11:53:28,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 11:53:28,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 11:53:28,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; [2020-08-18 11:53:28,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 11:53:28,505 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 11:53:28,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 11:53:28,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 11:53:28,511 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 11:53:28,511 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 11:53:28,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4242cf52/d52d89d1000442349ff6d8bb87fc3bc9/FLAG397956765 [2020-08-18 11:53:29,194 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 11:53:29,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 11:53:29,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4242cf52/d52d89d1000442349ff6d8bb87fc3bc9/FLAG397956765 [2020-08-18 11:53:29,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4242cf52/d52d89d1000442349ff6d8bb87fc3bc9 [2020-08-18 11:53:29,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 11:53:29,430 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 11:53:29,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 11:53:29,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 11:53:29,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 11:53:29,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:53:29" (1/1) ... [2020-08-18 11:53:29,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20abf48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:53:29, skipping insertion in model container [2020-08-18 11:53:29,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:53:29" (1/1) ... [2020-08-18 11:53:29,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 11:53:29,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 11:53:30,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 11:53:30,188 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 11:53:30,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 11:53:30,440 INFO L208 MainTranslator]: Completed translation [2020-08-18 11:53:30,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:53:30 WrapperNode [2020-08-18 11:53:30,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 11:53:30,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 11:53:30,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 11:53:30,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 11:53:30,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:53:30" (1/1) ... [2020-08-18 11:53:30,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:53:30" (1/1) ... [2020-08-18 11:53:30,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:53:30" (1/1) ... [2020-08-18 11:53:30,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:53:30" (1/1) ... [2020-08-18 11:53:30,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:53:30" (1/1) ... [2020-08-18 11:53:30,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:53:30" (1/1) ... [2020-08-18 11:53:30,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:53:30" (1/1) ... [2020-08-18 11:53:30,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 11:53:30,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 11:53:30,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 11:53:30,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 11:53:30,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:53:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 11:53:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 11:53:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 11:53:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 11:53:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-18 11:53:30,703 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-18 11:53:30,703 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-18 11:53:30,703 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-18 11:53:30,703 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-18 11:53:30,703 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 11:53:30,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 11:53:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-18 11:53:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 11:53:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 11:53:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 11:53:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 11:53:30,706 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 11:53:30,707 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-18 11:53:30,707 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-18 11:53:30,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-18 11:53:30,707 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-18 11:53:30,708 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-18 11:53:30,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-18 11:53:30,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-18 11:53:30,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-18 11:53:30,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-18 11:53:30,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-18 11:53:30,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-18 11:53:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-18 11:53:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-18 11:53:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-18 11:53:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-18 11:53:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-18 11:53:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-18 11:53:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-18 11:53:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-18 11:53:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-18 11:53:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-18 11:53:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-18 11:53:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-18 11:53:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-18 11:53:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-18 11:53:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-18 11:53:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-18 11:53:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-18 11:53:30,717 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-18 11:53:30,717 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-18 11:53:30,717 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-18 11:53:30,717 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-18 11:53:30,717 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-18 11:53:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 11:53:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 11:53:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-18 11:53:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 11:53:30,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 11:53:30,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 11:53:30,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 11:53:30,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 11:53:30,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 11:53:30,720 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-18 11:53:30,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-18 11:53:30,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-18 11:53:30,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-18 11:53:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-18 11:53:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-18 11:53:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-18 11:53:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-18 11:53:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-18 11:53:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-18 11:53:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-18 11:53:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-18 11:53:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-18 11:53:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-18 11:53:30,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-18 11:53:30,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-18 11:53:30,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-18 11:53:30,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-18 11:53:30,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-18 11:53:30,725 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-18 11:53:30,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-18 11:53:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-18 11:53:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-18 11:53:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-18 11:53:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-18 11:53:30,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-18 11:53:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-18 11:53:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-18 11:53:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-18 11:53:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-18 11:53:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-18 11:53:30,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-18 11:53:30,728 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-18 11:53:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 11:53:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 11:53:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 11:53:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-18 11:53:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-18 11:53:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-18 11:53:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 11:53:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 11:53:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 11:53:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-18 11:53:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-18 11:53:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-18 11:53:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-18 11:53:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-18 11:53:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-18 11:53:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-18 11:53:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-18 11:53:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-18 11:53:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-18 11:53:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 11:53:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 11:53:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 11:53:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-18 11:53:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 11:53:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 11:53:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-18 11:53:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-18 11:53:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-18 11:53:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-18 11:53:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-18 11:53:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-18 11:53:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-18 11:53:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-18 11:53:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-18 11:53:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-18 11:53:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-18 11:53:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-18 11:53:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-18 11:53:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-18 11:53:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-18 11:53:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-18 11:53:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-18 11:53:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-18 11:53:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-18 11:53:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-18 11:53:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-18 11:53:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-18 11:53:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-18 11:53:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-18 11:53:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-18 11:53:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-18 11:53:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-18 11:53:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-18 11:53:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-18 11:53:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-18 11:53:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-18 11:53:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-18 11:53:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 11:53:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 11:53:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-18 11:53:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-18 11:53:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 11:53:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 11:53:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 11:53:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 11:53:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 11:53:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 11:53:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 11:53:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 11:53:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 11:53:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 11:53:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 11:53:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 11:53:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 11:53:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 11:53:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 11:53:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 11:53:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-18 11:53:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-18 11:53:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-18 11:53:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-18 11:53:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-18 11:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-18 11:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-18 11:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-18 11:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-18 11:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-18 11:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-18 11:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-18 11:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-18 11:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-18 11:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-18 11:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-18 11:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-18 11:53:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-18 11:53:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-18 11:53:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-18 11:53:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-18 11:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-18 11:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-18 11:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-18 11:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-18 11:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-18 11:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 11:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 11:53:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 11:53:32,513 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 11:53:32,513 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 11:53:32,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:53:32 BoogieIcfgContainer [2020-08-18 11:53:32,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 11:53:32,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 11:53:32,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 11:53:32,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 11:53:32,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:53:29" (1/3) ... [2020-08-18 11:53:32,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78028e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:53:32, skipping insertion in model container [2020-08-18 11:53:32,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:53:30" (2/3) ... [2020-08-18 11:53:32,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78028e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:53:32, skipping insertion in model container [2020-08-18 11:53:32,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:53:32" (3/3) ... [2020-08-18 11:53:32,527 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-18 11:53:32,538 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 11:53:32,547 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 11:53:32,562 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 11:53:32,591 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 11:53:32,591 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 11:53:32,591 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 11:53:32,591 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 11:53:32,591 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 11:53:32,592 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 11:53:32,592 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 11:53:32,592 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 11:53:32,617 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-18 11:53:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-18 11:53:32,633 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:53:32,635 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:53:32,635 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:53:32,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:53:32,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-18 11:53:32,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:53:32,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715777879] [2020-08-18 11:53:32,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:53:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,632 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 11:53:34,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:53:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:53:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 11:53:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:53:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 11:53:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 11:53:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 11:53:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-18 11:53:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:53:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-18 11:53:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-18 11:53:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-18 11:53:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 11:53:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-18 11:53:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:34,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-18 11:53:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:35,057 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 11:53:35,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715777879] [2020-08-18 11:53:35,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 11:53:35,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-18 11:53:35,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074790979] [2020-08-18 11:53:35,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 11:53:35,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:53:35,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 11:53:35,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 11:53:35,086 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-18 11:53:37,122 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 11:53:38,624 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 11:53:39,853 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 11:53:41,092 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 11:53:46,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:53:46,884 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-18 11:53:46,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-18 11:53:46,891 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-18 11:53:46,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:53:46,923 INFO L225 Difference]: With dead ends: 573 [2020-08-18 11:53:46,924 INFO L226 Difference]: Without dead ends: 340 [2020-08-18 11:53:46,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-18 11:53:46,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-18 11:53:47,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-18 11:53:47,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-18 11:53:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-18 11:53:47,073 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-18 11:53:47,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:53:47,074 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-18 11:53:47,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 11:53:47,074 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-18 11:53:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-18 11:53:47,077 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:53:47,078 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:53:47,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 11:53:47,078 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:53:47,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:53:47,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-18 11:53:47,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:53:47,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766579218] [2020-08-18 11:53:47,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:53:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,312 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 11:53:48,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:53:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:53:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 11:53:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:53:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 11:53:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 11:53:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 11:53:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 11:53:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:53:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-18 11:53:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-18 11:53:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 11:53:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 11:53:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:53:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-18 11:53:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-18 11:53:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:53:48,679 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 11:53:48,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766579218] [2020-08-18 11:53:48,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:53:48,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 11:53:48,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985770152] [2020-08-18 11:53:48,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 11:53:48,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:53:48,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 11:53:48,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 11:53:48,683 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-18 11:53:50,356 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 11:53:51,920 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 11:53:53,113 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 11:53:54,302 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 11:53:58,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:53:58,872 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-18 11:53:58,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 11:53:58,873 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-18 11:53:58,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:53:58,878 INFO L225 Difference]: With dead ends: 509 [2020-08-18 11:53:58,878 INFO L226 Difference]: Without dead ends: 346 [2020-08-18 11:53:58,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 11:53:58,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-18 11:53:58,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-18 11:53:58,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 11:53:58,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-18 11:53:58,995 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-18 11:53:58,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:53:58,996 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-18 11:53:58,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 11:53:58,996 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-18 11:53:58,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-18 11:53:58,999 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:53:58,999 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:53:58,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 11:53:58,999 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:53:59,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:53:59,000 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-18 11:53:59,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:53:59,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947139749] [2020-08-18 11:53:59,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:53:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,263 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 11:54:00,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:54:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:54:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 11:54:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:54:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 11:54:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 11:54:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 11:54:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 11:54:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:54:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-18 11:54:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 11:54:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 11:54:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-18 11:54:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 11:54:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 11:54:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:00,614 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 11:54:00,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947139749] [2020-08-18 11:54:00,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:54:00,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 11:54:00,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226028967] [2020-08-18 11:54:00,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 11:54:00,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:54:00,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 11:54:00,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 11:54:00,618 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-18 11:54:02,950 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 11:54:04,504 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 11:54:05,642 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 11:54:06,817 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 11:54:11,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:54:11,110 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-18 11:54:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 11:54:11,110 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-18 11:54:11,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:54:11,114 INFO L225 Difference]: With dead ends: 509 [2020-08-18 11:54:11,115 INFO L226 Difference]: Without dead ends: 348 [2020-08-18 11:54:11,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 11:54:11,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-18 11:54:11,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-18 11:54:11,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 11:54:11,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-18 11:54:11,217 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-18 11:54:11,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:54:11,218 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-18 11:54:11,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 11:54:11,218 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-18 11:54:11,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-18 11:54:11,220 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:54:11,220 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:54:11,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 11:54:11,220 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:54:11,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:54:11,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-18 11:54:11,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:54:11,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341717373] [2020-08-18 11:54:11,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:54:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,771 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 11:54:12,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:54:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:54:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 11:54:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:54:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 11:54:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 11:54:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 11:54:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-18 11:54:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:54:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 11:54:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 11:54:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 11:54:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 11:54:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-18 11:54:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:12,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-18 11:54:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:13,065 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 11:54:13,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341717373] [2020-08-18 11:54:13,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:54:13,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 11:54:13,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875151661] [2020-08-18 11:54:13,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 11:54:13,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:54:13,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 11:54:13,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-18 11:54:13,068 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-18 11:54:15,221 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 11:54:19,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:54:19,282 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-18 11:54:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 11:54:19,283 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-18 11:54:19,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:54:19,286 INFO L225 Difference]: With dead ends: 463 [2020-08-18 11:54:19,287 INFO L226 Difference]: Without dead ends: 347 [2020-08-18 11:54:19,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-18 11:54:19,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-18 11:54:19,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-18 11:54:19,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-18 11:54:19,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-18 11:54:19,384 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-18 11:54:19,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:54:19,384 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-18 11:54:19,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 11:54:19,385 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-18 11:54:19,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-18 11:54:19,386 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:54:19,387 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:54:19,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 11:54:19,387 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:54:19,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:54:19,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-18 11:54:19,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:54:19,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001319894] [2020-08-18 11:54:19,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:54:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,635 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 11:54:20,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:54:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:54:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 11:54:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:54:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 11:54:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 11:54:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 11:54:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 11:54:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:54:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 11:54:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 11:54:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-18 11:54:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-18 11:54:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-18 11:54:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-18 11:54:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:20,872 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 11:54:20,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001319894] [2020-08-18 11:54:20,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 11:54:20,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 11:54:20,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979173558] [2020-08-18 11:54:20,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 11:54:20,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:54:20,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 11:54:20,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-18 11:54:20,874 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-18 11:54:23,439 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 11:54:24,582 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 11:54:28,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:54:28,491 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-18 11:54:28,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 11:54:28,491 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-18 11:54:28,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:54:28,495 INFO L225 Difference]: With dead ends: 495 [2020-08-18 11:54:28,495 INFO L226 Difference]: Without dead ends: 379 [2020-08-18 11:54:28,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-18 11:54:28,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-18 11:54:28,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-18 11:54:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-18 11:54:28,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-18 11:54:28,654 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-18 11:54:28,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:54:28,654 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-18 11:54:28,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 11:54:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-18 11:54:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-18 11:54:28,657 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:54:28,657 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:54:28,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 11:54:28,658 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:54:28,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:54:28,658 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-18 11:54:28,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:54:28,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248576263] [2020-08-18 11:54:28,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:54:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:29,890 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 11:54:29,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:54:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:29,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:54:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:29,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 11:54:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:29,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:54:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:29,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 11:54:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:29,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 11:54:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 11:54:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 11:54:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:54:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 11:54:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-18 11:54:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-18 11:54:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-18 11:54:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:54:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 11:54:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-18 11:54:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:54:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 11:54:30,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248576263] [2020-08-18 11:54:30,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:54:30,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 11:54:30,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802558242] [2020-08-18 11:54:30,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 11:54:30,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:54:30,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 11:54:30,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-18 11:54:30,138 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states.