/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -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 0.1.25-177f698 [2020-08-21 17:05:19,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 17:05:19,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 17:05:19,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 17:05:19,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 17:05:19,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 17:05:19,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 17:05:19,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 17:05:19,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 17:05:19,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 17:05:19,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 17:05:19,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 17:05:19,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 17:05:19,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 17:05:19,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 17:05:19,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 17:05:19,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 17:05:19,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 17:05:19,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 17:05:19,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 17:05:19,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 17:05:19,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 17:05:19,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 17:05:19,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 17:05:19,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 17:05:19,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 17:05:19,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 17:05:19,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 17:05:19,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 17:05:19,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 17:05:19,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 17:05:19,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 17:05:19,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 17:05:19,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 17:05:19,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 17:05:19,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 17:05:19,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 17:05:19,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 17:05:19,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 17:05:19,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 17:05:19,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 17:05:19,203 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 [2020-08-21 17:05:19,247 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 17:05:19,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 17:05:19,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 17:05:19,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 17:05:19,249 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 17:05:19,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 17:05:19,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 17:05:19,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 17:05:19,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 17:05:19,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 17:05:19,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 17:05:19,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 17:05:19,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 17:05:19,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 17:05:19,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 17:05:19,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 17:05:19,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 17:05:19,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 17:05:19,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 17:05:19,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 17:05:19,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 17:05:19,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 17:05:19,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 17:05:19,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 17:05:19,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 17:05:19,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 17:05:19,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 17:05:19,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 17:05:19,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 17:05:19,256 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=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-08-21 17:05:19,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 17:05:19,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 17:05:19,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 17:05:19,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 17:05:19,563 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 17:05:19,563 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 17:05:19,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac4a4239e/0e286d8fdd9a470d9b3ef563328d09a4/FLAG3c91758d6 [2020-08-21 17:05:20,299 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 17:05:20,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 17:05:20,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac4a4239e/0e286d8fdd9a470d9b3ef563328d09a4/FLAG3c91758d6 [2020-08-21 17:05:20,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac4a4239e/0e286d8fdd9a470d9b3ef563328d09a4 [2020-08-21 17:05:20,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 17:05:20,474 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 17:05:20,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 17:05:20,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 17:05:20,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 17:05:20,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:05:20" (1/1) ... [2020-08-21 17:05:20,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:05:20, skipping insertion in model container [2020-08-21 17:05:20,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:05:20" (1/1) ... [2020-08-21 17:05:20,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 17:05:20,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 17:05:21,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:05:21,215 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 17:05:21,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:05:21,449 INFO L208 MainTranslator]: Completed translation [2020-08-21 17:05:21,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:05:21 WrapperNode [2020-08-21 17:05:21,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 17:05:21,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 17:05:21,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 17:05:21,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 17:05:21,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:05:21" (1/1) ... [2020-08-21 17:05:21,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:05:21" (1/1) ... [2020-08-21 17:05:21,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:05:21" (1/1) ... [2020-08-21 17:05:21,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:05:21" (1/1) ... [2020-08-21 17:05:21,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:05:21" (1/1) ... [2020-08-21 17:05:21,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:05:21" (1/1) ... [2020-08-21 17:05:21,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:05:21" (1/1) ... [2020-08-21 17:05:21,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 17:05:21,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 17:05:21,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 17:05:21,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 17:05:21,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:05:21" (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 [2020-08-21 17:05:21,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 17:05:21,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 17:05:21,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 17:05:21,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-21 17:05:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-21 17:05:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-21 17:05:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-21 17:05:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-21 17:05:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 17:05:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 17:05:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-21 17:05:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 17:05:21,709 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 17:05:21,709 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 17:05:21,709 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 17:05:21,710 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 17:05:21,710 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-21 17:05:21,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-21 17:05:21,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-21 17:05:21,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-21 17:05:21,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-21 17:05:21,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-21 17:05:21,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-21 17:05:21,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-21 17:05:21,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-21 17:05:21,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-21 17:05:21,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-21 17:05:21,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-21 17:05:21,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-21 17:05:21,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-21 17:05:21,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-21 17:05:21,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-21 17:05:21,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-21 17:05:21,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-21 17:05:21,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-21 17:05:21,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-21 17:05:21,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-21 17:05:21,715 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-21 17:05:21,715 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-21 17:05:21,715 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-21 17:05:21,716 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-21 17:05:21,716 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-21 17:05:21,716 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-21 17:05:21,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-21 17:05:21,716 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-21 17:05:21,716 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-21 17:05:21,717 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-21 17:05:21,717 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-21 17:05:21,717 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-21 17:05:21,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 17:05:21,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 17:05:21,717 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-21 17:05:21,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 17:05:21,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 17:05:21,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 17:05:21,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 17:05:21,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 17:05:21,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 17:05:21,719 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-21 17:05:21,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-21 17:05:21,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-21 17:05:21,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-21 17:05:21,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-21 17:05:21,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-21 17:05:21,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-21 17:05:21,720 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-21 17:05:21,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-21 17:05:21,720 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-21 17:05:21,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-21 17:05:21,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-21 17:05:21,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-21 17:05:21,722 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-21 17:05:21,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-21 17:05:21,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-21 17:05:21,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-21 17:05:21,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-21 17:05:21,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-21 17:05:21,724 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-21 17:05:21,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-21 17:05:21,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-21 17:05:21,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-21 17:05:21,725 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-21 17:05:21,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-21 17:05:21,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-21 17:05:21,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-21 17:05:21,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-21 17:05:21,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-21 17:05:21,727 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-21 17:05:21,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-21 17:05:21,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-21 17:05:21,727 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-21 17:05:21,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 17:05:21,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 17:05:21,728 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 17:05:21,728 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-21 17:05:21,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-21 17:05:21,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-21 17:05:21,728 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 17:05:21,729 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 17:05:21,729 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 17:05:21,729 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-21 17:05:21,729 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-21 17:05:21,729 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-21 17:05:21,729 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-21 17:05:21,730 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-21 17:05:21,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-21 17:05:21,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-21 17:05:21,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-21 17:05:21,730 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-21 17:05:21,731 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-21 17:05:21,731 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 17:05:21,731 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 17:05:21,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 17:05:21,731 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-21 17:05:21,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 17:05:21,732 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 17:05:21,732 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-21 17:05:21,733 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-21 17:05:21,733 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-21 17:05:21,734 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-21 17:05:21,734 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-21 17:05:21,734 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-21 17:05:21,734 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-21 17:05:21,735 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-21 17:05:21,735 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-21 17:05:21,735 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-21 17:05:21,735 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-21 17:05:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-21 17:05:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-21 17:05:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-21 17:05:21,737 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-21 17:05:21,741 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-21 17:05:21,741 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-21 17:05:21,741 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-21 17:05:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-21 17:05:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-21 17:05:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-21 17:05:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-21 17:05:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-21 17:05:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-21 17:05:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-21 17:05:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-21 17:05:21,744 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-21 17:05:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-21 17:05:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-21 17:05:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-21 17:05:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-21 17:05:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-21 17:05:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 17:05:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 17:05:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-21 17:05:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-21 17:05:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 17:05:21,754 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 17:05:21,754 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 17:05:21,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 17:05:21,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 17:05:21,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 17:05:21,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 17:05:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 17:05:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 17:05:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 17:05:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 17:05:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 17:05:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 17:05:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 17:05:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 17:05:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 17:05:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-21 17:05:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-21 17:05:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-21 17:05:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-21 17:05:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-21 17:05:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-21 17:05:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-21 17:05:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-21 17:05:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-21 17:05:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-21 17:05:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-21 17:05:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-21 17:05:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-21 17:05:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-21 17:05:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-21 17:05:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-21 17:05:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-21 17:05:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-21 17:05:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-21 17:05:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-21 17:05:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-21 17:05:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-21 17:05:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-21 17:05:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-21 17:05:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-21 17:05:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-21 17:05:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 17:05:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 17:05:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 17:05:23,613 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 17:05:23,613 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 17:05:23,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:05:23 BoogieIcfgContainer [2020-08-21 17:05:23,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 17:05:23,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 17:05:23,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 17:05:23,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 17:05:23,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:05:20" (1/3) ... [2020-08-21 17:05:23,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cafb1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:05:23, skipping insertion in model container [2020-08-21 17:05:23,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:05:21" (2/3) ... [2020-08-21 17:05:23,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cafb1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:05:23, skipping insertion in model container [2020-08-21 17:05:23,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:05:23" (3/3) ... [2020-08-21 17:05:23,628 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-21 17:05:23,640 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 17:05:23,650 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 17:05:23,666 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 17:05:23,695 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 17:05:23,695 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 17:05:23,695 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 17:05:23,695 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 17:05:23,695 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 17:05:23,695 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 17:05:23,696 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 17:05:23,696 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 17:05:23,720 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-21 17:05:23,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-21 17:05:23,735 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:05:23,736 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] [2020-08-21 17:05:23,737 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:05:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:05:23,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-21 17:05:23,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:05:23,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629574839] [2020-08-21 17:05:23,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:05:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,641 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:05:25,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:05:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:05:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:05:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:05:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:05:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:05:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 17:05:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-21 17:05:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:25,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:26,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:05:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:26,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 17:05:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:26,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 17:05:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:26,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-21 17:05:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:26,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 17:05:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:26,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:26,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-21 17:05:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:26,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-21 17:05:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:26,116 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 17:05:26,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629574839] [2020-08-21 17:05:26,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:05:26,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-21 17:05:26,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426019310] [2020-08-21 17:05:26,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 17:05:26,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:05:26,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 17:05:26,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 17:05:26,143 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-21 17:05:28,166 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:05:29,675 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 17:05:30,961 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:05:32,221 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:05:37,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:05:37,964 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-21 17:05:37,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 17:05:37,966 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-21 17:05:37,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:05:37,986 INFO L225 Difference]: With dead ends: 573 [2020-08-21 17:05:37,986 INFO L226 Difference]: Without dead ends: 340 [2020-08-21 17:05:37,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-21 17:05:38,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-21 17:05:38,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-21 17:05:38,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-21 17:05:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-21 17:05:38,168 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-21 17:05:38,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:05:38,169 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-21 17:05:38,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 17:05:38,169 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-21 17:05:38,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-21 17:05:38,173 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:05:38,173 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] [2020-08-21 17:05:38,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 17:05:38,174 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:05:38,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:05:38,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-21 17:05:38,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:05:38,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377904867] [2020-08-21 17:05:38,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:05:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,370 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:05:39,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:05:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:05:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:05:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:05:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:05:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:05:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:05:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 17:05:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:05:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 17:05:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 17:05:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 17:05:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 17:05:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-21 17:05:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-21 17:05:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:39,747 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 17:05:39,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377904867] [2020-08-21 17:05:39,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:05:39,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 17:05:39,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797164259] [2020-08-21 17:05:39,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 17:05:39,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:05:39,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 17:05:39,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 17:05:39,751 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-21 17:05:41,406 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:05:42,971 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 17:05:44,204 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:05:45,386 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:05:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:05:49,840 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-21 17:05:49,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 17:05:49,841 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-21 17:05:49,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:05:49,847 INFO L225 Difference]: With dead ends: 509 [2020-08-21 17:05:49,848 INFO L226 Difference]: Without dead ends: 346 [2020-08-21 17:05:49,850 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 [2020-08-21 17:05:49,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-21 17:05:49,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-21 17:05:49,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 17:05:49,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-21 17:05:49,964 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-21 17:05:49,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:05:49,965 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-21 17:05:49,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 17:05:49,965 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-21 17:05:49,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-21 17:05:49,968 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:05:49,968 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] [2020-08-21 17:05:49,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 17:05:49,969 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:05:49,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:05:49,969 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-21 17:05:49,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:05:49,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296842731] [2020-08-21 17:05:49,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:05:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,205 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:05:51,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:05:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:05:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:05:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:05:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:05:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:05:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:05:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 17:05:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:05:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-21 17:05:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 17:05:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 17:05:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 17:05:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:05:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 17:05:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 17:05:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:05:51,579 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 17:05:51,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296842731] [2020-08-21 17:05:51,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:05:51,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 17:05:51,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910706291] [2020-08-21 17:05:51,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 17:05:51,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:05:51,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 17:05:51,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 17:05:51,582 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-21 17:05:53,519 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:05:55,128 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 17:05:56,281 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:05:57,443 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:06:01,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:06:01,655 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-21 17:06:01,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 17:06:01,656 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-21 17:06:01,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:06:01,659 INFO L225 Difference]: With dead ends: 509 [2020-08-21 17:06:01,659 INFO L226 Difference]: Without dead ends: 348 [2020-08-21 17:06:01,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 17:06:01,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-21 17:06:01,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-21 17:06:01,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 17:06:01,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-21 17:06:01,761 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-21 17:06:01,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:06:01,761 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-21 17:06:01,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 17:06:01,762 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-21 17:06:01,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-21 17:06:01,764 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:06:01,764 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] [2020-08-21 17:06:01,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 17:06:01,764 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:06:01,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:06:01,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-21 17:06:01,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:06:01,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009459119] [2020-08-21 17:06:01,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:06:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:02,984 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:06:02,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:06:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:06:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:06:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:06:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:06:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:06:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:06:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-21 17:06:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:06:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 17:06:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 17:06:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 17:06:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 17:06:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-21 17:06:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 17:06:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:03,203 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 17:06:03,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009459119] [2020-08-21 17:06:03,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:06:03,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 17:06:03,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995066321] [2020-08-21 17:06:03,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 17:06:03,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:06:03,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 17:06:03,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 17:06:03,206 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-21 17:06:05,882 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:06:09,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:06:09,860 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-21 17:06:09,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 17:06:09,861 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-21 17:06:09,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:06:09,864 INFO L225 Difference]: With dead ends: 463 [2020-08-21 17:06:09,864 INFO L226 Difference]: Without dead ends: 347 [2020-08-21 17:06:09,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-21 17:06:09,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-21 17:06:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-21 17:06:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-21 17:06:09,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-21 17:06:09,951 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-21 17:06:09,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:06:09,952 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-21 17:06:09,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 17:06:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-21 17:06:09,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-21 17:06:09,954 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:06:09,954 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] [2020-08-21 17:06:09,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 17:06:09,955 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:06:09,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:06:09,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-21 17:06:09,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:06:09,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66231668] [2020-08-21 17:06:09,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:06:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,352 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:06:11,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:06:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:06:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:06:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:06:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:06:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:06:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:06:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-21 17:06:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:06:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 17:06:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 17:06:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 17:06:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 17:06:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 17:06:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-21 17:06:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:11,607 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 17:06:11,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66231668] [2020-08-21 17:06:11,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:06:11,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 17:06:11,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172194157] [2020-08-21 17:06:11,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 17:06:11,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:06:11,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 17:06:11,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-21 17:06:11,610 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-21 17:06:13,611 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:06:14,780 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:06:18,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:06:18,655 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-21 17:06:18,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 17:06:18,655 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-21 17:06:18,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:06:18,659 INFO L225 Difference]: With dead ends: 495 [2020-08-21 17:06:18,659 INFO L226 Difference]: Without dead ends: 379 [2020-08-21 17:06:18,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-21 17:06:18,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-21 17:06:18,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-21 17:06:18,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-21 17:06:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-21 17:06:18,774 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-21 17:06:18,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:06:18,775 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-21 17:06:18,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 17:06:18,775 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-21 17:06:18,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-21 17:06:18,777 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:06:18,777 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] [2020-08-21 17:06:18,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 17:06:18,778 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:06:18,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:06:18,778 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-21 17:06:18,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:06:18,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806397275] [2020-08-21 17:06:18,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:06:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,001 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:06:20,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:06:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:06:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:06:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:06:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:06:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:06:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:06:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 17:06:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:06:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 17:06:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-21 17:06:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 17:06:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-21 17:06:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:06:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 17:06:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-21 17:06:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:06:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 17:06:20,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806397275] [2020-08-21 17:06:20,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:06:20,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 17:06:20,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613858606] [2020-08-21 17:06:20,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 17:06:20,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:06:20,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 17:06:20,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-21 17:06:20,252 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states. [2020-08-21 17:06:21,986 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 502