/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 02:31:01,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 02:31:01,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 02:31:01,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 02:31:01,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 02:31:01,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 02:31:01,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 02:31:01,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 02:31:01,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 02:31:01,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 02:31:01,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 02:31:01,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 02:31:01,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 02:31:01,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 02:31:01,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 02:31:01,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 02:31:01,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 02:31:01,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 02:31:01,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 02:31:01,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 02:31:01,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 02:31:01,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 02:31:01,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 02:31:01,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 02:31:01,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 02:31:01,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 02:31:01,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 02:31:01,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 02:31:01,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 02:31:01,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 02:31:01,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 02:31:01,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 02:31:01,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 02:31:01,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 02:31:01,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 02:31:01,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 02:31:01,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 02:31:01,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 02:31:01,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 02:31:01,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 02:31:01,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 02:31:01,496 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 [2020-08-19 02:31:01,541 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 02:31:01,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 02:31:01,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 02:31:01,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 02:31:01,544 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 02:31:01,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 02:31:01,544 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 02:31:01,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 02:31:01,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 02:31:01,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 02:31:01,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 02:31:01,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 02:31:01,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 02:31:01,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 02:31:01,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 02:31:01,547 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 02:31:01,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 02:31:01,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 02:31:01,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 02:31:01,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 02:31:01,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 02:31:01,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 02:31:01,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 02:31:01,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 02:31:01,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 02:31:01,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 02:31:01,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 02:31:01,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 02:31:01,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 02:31:01,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0; [2020-08-19 02:31:01,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 02:31:01,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 02:31:01,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 02:31:01,870 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 02:31:01,870 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 02:31:01,871 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-19 02:31:01,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73281cd68/320dd49665dc4c648f76da80b5d5c051/FLAGbea432b22 [2020-08-19 02:31:02,552 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 02:31:02,553 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-19 02:31:02,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73281cd68/320dd49665dc4c648f76da80b5d5c051/FLAGbea432b22 [2020-08-19 02:31:02,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/73281cd68/320dd49665dc4c648f76da80b5d5c051 [2020-08-19 02:31:02,786 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 02:31:02,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 02:31:02,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 02:31:02,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 02:31:02,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 02:31:02,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:31:02" (1/1) ... [2020-08-19 02:31:02,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e3fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:31:02, skipping insertion in model container [2020-08-19 02:31:02,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:31:02" (1/1) ... [2020-08-19 02:31:02,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 02:31:02,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 02:31:03,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:31:03,587 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 02:31:03,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:31:03,808 INFO L208 MainTranslator]: Completed translation [2020-08-19 02:31:03,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:31:03 WrapperNode [2020-08-19 02:31:03,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 02:31:03,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 02:31:03,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 02:31:03,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 02:31:03,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:31:03" (1/1) ... [2020-08-19 02:31:03,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:31:03" (1/1) ... [2020-08-19 02:31:03,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:31:03" (1/1) ... [2020-08-19 02:31:03,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:31:03" (1/1) ... [2020-08-19 02:31:03,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:31:03" (1/1) ... [2020-08-19 02:31:03,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:31:03" (1/1) ... [2020-08-19 02:31:03,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:31:03" (1/1) ... [2020-08-19 02:31:03,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 02:31:03,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 02:31:03,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 02:31:03,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 02:31:03,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:31:03" (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 [2020-08-19 02:31:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 02:31:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 02:31:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 02:31:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-19 02:31:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-19 02:31:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-19 02:31:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-19 02:31:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-19 02:31:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 02:31:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 02:31:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-19 02:31:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 02:31:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 02:31:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 02:31:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 02:31:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 02:31:04,042 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-19 02:31:04,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-19 02:31:04,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-19 02:31:04,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-19 02:31:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-19 02:31:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-19 02:31:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-19 02:31:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-19 02:31:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-19 02:31:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-19 02:31:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-19 02:31:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-19 02:31:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-19 02:31:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-19 02:31:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-19 02:31:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-19 02:31:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-19 02:31:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-19 02:31:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-19 02:31:04,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-19 02:31:04,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-19 02:31:04,046 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-19 02:31:04,046 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-19 02:31:04,046 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-19 02:31:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-19 02:31:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-19 02:31:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-19 02:31:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-19 02:31:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-19 02:31:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-19 02:31:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-19 02:31:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-19 02:31:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-19 02:31:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-19 02:31:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 02:31:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-19 02:31:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 02:31:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 02:31:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 02:31:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 02:31:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 02:31:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 02:31:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-19 02:31:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-19 02:31:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-19 02:31:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-19 02:31:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-19 02:31:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-19 02:31:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-19 02:31:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-19 02:31:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-19 02:31:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-19 02:31:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-19 02:31:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-19 02:31:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-19 02:31:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-19 02:31:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-19 02:31:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-19 02:31:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-19 02:31:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-19 02:31:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-19 02:31:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-19 02:31:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-19 02:31:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-19 02:31:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-19 02:31:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-19 02:31:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-19 02:31:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-19 02:31:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-19 02:31:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-19 02:31:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-19 02:31:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-19 02:31:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-19 02:31:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-19 02:31:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-19 02:31:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 02:31:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 02:31:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 02:31:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-19 02:31:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-19 02:31:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-19 02:31:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 02:31:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 02:31:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 02:31:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-19 02:31:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-19 02:31:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-19 02:31:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-19 02:31:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-19 02:31:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-19 02:31:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-19 02:31:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-19 02:31:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-19 02:31:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-19 02:31:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 02:31:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 02:31:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 02:31:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-19 02:31:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 02:31:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 02:31:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-19 02:31:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-19 02:31:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-19 02:31:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-19 02:31:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-19 02:31:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-19 02:31:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-19 02:31:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-19 02:31:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-19 02:31:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-19 02:31:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-19 02:31:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-19 02:31:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-19 02:31:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-19 02:31:04,068 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-19 02:31:04,068 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-19 02:31:04,068 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-19 02:31:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-19 02:31:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-19 02:31:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-19 02:31:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-19 02:31:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-19 02:31:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-19 02:31:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-19 02:31:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-19 02:31:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-19 02:31:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-19 02:31:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-19 02:31:04,071 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-19 02:31:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-19 02:31:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-19 02:31:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-19 02:31:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-19 02:31:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 02:31:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-19 02:31:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-19 02:31:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 02:31:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 02:31:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 02:31:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 02:31:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 02:31:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 02:31:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 02:31:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 02:31:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 02:31:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 02:31:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 02:31:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 02:31:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 02:31:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 02:31:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 02:31:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 02:31:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-19 02:31:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-19 02:31:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-19 02:31:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-19 02:31:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-19 02:31:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-19 02:31:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-19 02:31:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-19 02:31:04,081 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-19 02:31:04,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-19 02:31:04,081 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-19 02:31:04,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-19 02:31:04,081 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-19 02:31:04,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-19 02:31:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-19 02:31:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-19 02:31:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-19 02:31:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-19 02:31:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-19 02:31:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-19 02:31:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-19 02:31:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-19 02:31:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-19 02:31:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-19 02:31:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-19 02:31:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-19 02:31:04,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 02:31:04,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 02:31:04,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 02:31:06,020 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 02:31:06,020 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 02:31:06,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:31:06 BoogieIcfgContainer [2020-08-19 02:31:06,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 02:31:06,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 02:31:06,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 02:31:06,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 02:31:06,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 02:31:02" (1/3) ... [2020-08-19 02:31:06,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d729061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:31:06, skipping insertion in model container [2020-08-19 02:31:06,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:31:03" (2/3) ... [2020-08-19 02:31:06,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d729061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:31:06, skipping insertion in model container [2020-08-19 02:31:06,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:31:06" (3/3) ... [2020-08-19 02:31:06,036 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-19 02:31:06,047 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 02:31:06,057 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 02:31:06,072 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 02:31:06,099 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 02:31:06,100 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 02:31:06,100 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 02:31:06,100 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 02:31:06,100 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 02:31:06,100 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 02:31:06,100 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 02:31:06,101 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 02:31:06,125 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-19 02:31:06,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-19 02:31:06,139 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:31:06,140 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] [2020-08-19 02:31:06,141 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:31:06,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:31:06,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-19 02:31:06,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:31:06,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731272325] [2020-08-19 02:31:06,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:31:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,161 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 02:31:08,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:31:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:31:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:31:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:31:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:31:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 02:31:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-19 02:31:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-19 02:31:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:31:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-19 02:31:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-19 02:31:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-19 02:31:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 02:31:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 02:31:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-19 02:31:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:08,688 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-19 02:31:08,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731272325] [2020-08-19 02:31:08,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 02:31:08,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 02:31:08,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145256450] [2020-08-19 02:31:08,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 02:31:08,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:31:08,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 02:31:08,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-19 02:31:08,716 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-19 02:31:10,769 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 02:31:12,264 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-19 02:31:13,518 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 02:31:14,746 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 02:31:20,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:31:20,674 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-19 02:31:20,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-19 02:31:20,676 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-19 02:31:20,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:31:20,693 INFO L225 Difference]: With dead ends: 573 [2020-08-19 02:31:20,694 INFO L226 Difference]: Without dead ends: 340 [2020-08-19 02:31:20,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-19 02:31:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-19 02:31:20,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-19 02:31:20,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-19 02:31:20,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-19 02:31:20,895 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-19 02:31:20,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:31:20,896 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-19 02:31:20,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 02:31:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-19 02:31:20,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-19 02:31:20,900 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:31:20,901 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] [2020-08-19 02:31:20,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 02:31:20,901 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:31:20,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:31:20,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-19 02:31:20,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:31:20,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782842055] [2020-08-19 02:31:20,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:31:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,104 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 02:31:22,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:31:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:31:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:31:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:31:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:31:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 02:31:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:31:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-19 02:31:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:31:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-19 02:31:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-19 02:31:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-19 02:31:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 02:31:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 02:31:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-19 02:31:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-19 02:31:22,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782842055] [2020-08-19 02:31:22,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:31:22,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-19 02:31:22,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886151738] [2020-08-19 02:31:22,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 02:31:22,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:31:22,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 02:31:22,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-19 02:31:22,502 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-19 02:31:24,140 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 02:31:25,746 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-19 02:31:26,989 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 02:31:28,170 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 02:31:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:31:32,702 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-19 02:31:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-19 02:31:32,703 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-19 02:31:32,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:31:32,708 INFO L225 Difference]: With dead ends: 509 [2020-08-19 02:31:32,708 INFO L226 Difference]: Without dead ends: 346 [2020-08-19 02:31:32,711 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 [2020-08-19 02:31:32,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-19 02:31:32,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-19 02:31:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-19 02:31:32,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-19 02:31:32,826 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-19 02:31:32,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:31:32,827 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-19 02:31:32,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 02:31:32,827 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-19 02:31:32,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-19 02:31:32,829 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:31:32,830 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] [2020-08-19 02:31:32,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 02:31:32,830 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:31:32,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:31:32,831 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-19 02:31:32,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:31:32,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598460992] [2020-08-19 02:31:32,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:31:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,077 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 02:31:34,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:31:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:31:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:31:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:31:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:31:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 02:31:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:31:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 02:31:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:31:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-19 02:31:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 02:31:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 02:31:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-19 02:31:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 02:31:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-19 02:31:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:34,431 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-19 02:31:34,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598460992] [2020-08-19 02:31:34,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:31:34,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-19 02:31:34,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281904005] [2020-08-19 02:31:34,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 02:31:34,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:31:34,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 02:31:34,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-19 02:31:34,436 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-19 02:31:36,331 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 02:31:37,889 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-19 02:31:39,028 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 02:31:40,197 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 02:31:44,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:31:44,485 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-19 02:31:44,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-19 02:31:44,486 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-19 02:31:44,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:31:44,489 INFO L225 Difference]: With dead ends: 509 [2020-08-19 02:31:44,489 INFO L226 Difference]: Without dead ends: 348 [2020-08-19 02:31:44,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-19 02:31:44,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-19 02:31:44,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-19 02:31:44,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-19 02:31:44,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-19 02:31:44,593 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-19 02:31:44,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:31:44,594 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-19 02:31:44,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 02:31:44,594 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-19 02:31:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-19 02:31:44,596 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:31:44,596 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] [2020-08-19 02:31:44,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 02:31:44,597 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:31:44,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:31:44,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-19 02:31:44,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:31:44,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875618575] [2020-08-19 02:31:44,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:31:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,191 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 02:31:46,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:31:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:31:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:31:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:31:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:31:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 02:31:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:31:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-19 02:31:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:31:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 02:31:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 02:31:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-19 02:31:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 02:31:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-19 02:31:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 02:31:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 02:31:46,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875618575] [2020-08-19 02:31:46,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:31:46,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 02:31:46,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097704950] [2020-08-19 02:31:46,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 02:31:46,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:31:46,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 02:31:46,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-19 02:31:46,391 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-19 02:31:48,688 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 02:31:52,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:31:52,726 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-19 02:31:52,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 02:31:52,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-19 02:31:52,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:31:52,730 INFO L225 Difference]: With dead ends: 463 [2020-08-19 02:31:52,730 INFO L226 Difference]: Without dead ends: 347 [2020-08-19 02:31:52,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-19 02:31:52,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-19 02:31:52,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-19 02:31:52,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-19 02:31:52,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-19 02:31:52,829 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-19 02:31:52,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:31:52,829 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-19 02:31:52,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 02:31:52,829 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-19 02:31:52,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-19 02:31:52,831 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:31:52,831 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] [2020-08-19 02:31:52,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 02:31:52,832 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:31:52,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:31:52,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-19 02:31:52,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:31:52,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874045606] [2020-08-19 02:31:52,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:31:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,093 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 02:31:54,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:31:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:31:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:31:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:31:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:31:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 02:31:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:31:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-19 02:31:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:31:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 02:31:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-19 02:31:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 02:31:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-19 02:31:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:31:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-19 02:31:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-19 02:31:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:31:54,316 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 02:31:54,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874045606] [2020-08-19 02:31:54,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 02:31:54,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 02:31:54,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177100990] [2020-08-19 02:31:54,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 02:31:54,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:31:54,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 02:31:54,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-19 02:31:54,319 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-19 02:31:56,353 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 02:31:57,531 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 02:32:01,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 02:32:01,430 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-19 02:32:01,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 02:32:01,430 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-19 02:32:01,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 02:32:01,434 INFO L225 Difference]: With dead ends: 495 [2020-08-19 02:32:01,435 INFO L226 Difference]: Without dead ends: 379 [2020-08-19 02:32:01,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-19 02:32:01,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-19 02:32:01,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-19 02:32:01,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-19 02:32:01,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-19 02:32:01,568 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-19 02:32:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 02:32:01,569 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-19 02:32:01,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 02:32:01,569 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-19 02:32:01,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-19 02:32:01,572 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:32:01,572 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] [2020-08-19 02:32:01,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 02:32:01,573 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:32:01,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:32:01,573 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-19 02:32:01,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:32:01,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335575365] [2020-08-19 02:32:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:32:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,806 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 02:32:02,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 02:32:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:32:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 02:32:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 02:32:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 02:32:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:32:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:32:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 02:32:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:32:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 02:32:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:32:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 02:32:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:02,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:32:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:03,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 02:32:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:03,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 02:32:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:03,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-19 02:32:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:03,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 02:32:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:03,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-19 02:32:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:03,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 02:32:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:03,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-19 02:32:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:03,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-19 02:32:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 02:32:03,054 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 02:32:03,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335575365] [2020-08-19 02:32:03,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 02:32:03,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 02:32:03,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743983837] [2020-08-19 02:32:03,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 02:32:03,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 02:32:03,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 02:32:03,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-19 02:32:03,057 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states.