/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 10:17:05,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 10:17:05,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 10:17:05,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 10:17:05,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 10:17:05,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 10:17:05,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 10:17:05,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 10:17:05,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 10:17:05,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 10:17:05,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 10:17:05,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 10:17:05,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 10:17:05,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 10:17:05,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 10:17:05,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 10:17:05,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 10:17:05,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 10:17:05,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 10:17:05,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 10:17:05,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 10:17:05,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 10:17:05,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 10:17:05,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 10:17:05,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 10:17:05,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 10:17:05,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 10:17:05,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 10:17:05,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 10:17:05,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 10:17:05,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 10:17:05,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 10:17:05,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 10:17:05,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 10:17:05,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 10:17:05,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 10:17:05,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 10:17:05,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 10:17:05,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 10:17:05,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 10:17:05,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 10:17:05,519 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 10:17:05,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 10:17:05,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 10:17:05,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 10:17:05,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 10:17:05,562 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 10:17:05,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 10:17:05,562 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 10:17:05,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 10:17:05,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 10:17:05,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 10:17:05,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 10:17:05,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 10:17:05,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 10:17:05,564 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 10:17:05,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 10:17:05,565 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 10:17:05,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 10:17:05,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 10:17:05,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 10:17:05,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 10:17:05,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 10:17:05,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 10:17:05,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 10:17:05,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 10:17:05,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 10:17:05,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 10:17:05,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 10:17:05,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 10:17:05,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 10:17:05,568 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 -> false [2020-08-18 10:17:05,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 10:17:05,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 10:17:05,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 10:17:05,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 10:17:05,922 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 10:17:05,922 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 10:17:05,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a03a26f3/5fd4592e9aa147d093941945f62251a5/FLAGa1be0c25d [2020-08-18 10:17:06,601 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 10:17:06,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 10:17:06,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a03a26f3/5fd4592e9aa147d093941945f62251a5/FLAGa1be0c25d [2020-08-18 10:17:06,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a03a26f3/5fd4592e9aa147d093941945f62251a5 [2020-08-18 10:17:06,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 10:17:06,797 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 10:17:06,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 10:17:06,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 10:17:06,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 10:17:06,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:17:06" (1/1) ... [2020-08-18 10:17:06,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb51d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:17:06, skipping insertion in model container [2020-08-18 10:17:06,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:17:06" (1/1) ... [2020-08-18 10:17:06,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 10:17:06,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 10:17:07,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 10:17:07,569 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 10:17:07,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 10:17:07,828 INFO L208 MainTranslator]: Completed translation [2020-08-18 10:17:07,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:17:07 WrapperNode [2020-08-18 10:17:07,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 10:17:07,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 10:17:07,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 10:17:07,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 10:17:07,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:17:07" (1/1) ... [2020-08-18 10:17:07,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:17:07" (1/1) ... [2020-08-18 10:17:07,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:17:07" (1/1) ... [2020-08-18 10:17:07,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:17:07" (1/1) ... [2020-08-18 10:17:07,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:17:07" (1/1) ... [2020-08-18 10:17:07,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:17:07" (1/1) ... [2020-08-18 10:17:07,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:17:07" (1/1) ... [2020-08-18 10:17:08,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 10:17:08,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 10:17:08,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 10:17:08,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 10:17:08,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:17:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 10:17:08,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 10:17:08,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 10:17:08,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 10:17:08,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-18 10:17:08,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-18 10:17:08,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-18 10:17:08,103 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-18 10:17:08,103 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-18 10:17:08,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 10:17:08,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 10:17:08,104 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-18 10:17:08,104 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 10:17:08,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 10:17:08,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 10:17:08,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 10:17:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 10:17:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-18 10:17:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-18 10:17:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-18 10:17:08,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-18 10:17:08,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-18 10:17:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-18 10:17:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-18 10:17:08,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-18 10:17:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-18 10:17:08,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-18 10:17:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-18 10:17:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-18 10:17:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-18 10:17:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-18 10:17:08,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-18 10:17:08,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-18 10:17:08,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-18 10:17:08,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-18 10:17:08,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-18 10:17:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-18 10:17:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-18 10:17:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-18 10:17:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-18 10:17:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-18 10:17:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-18 10:17:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-18 10:17:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-18 10:17:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-18 10:17:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-18 10:17:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-18 10:17:08,115 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-18 10:17:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-18 10:17:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-18 10:17:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 10:17:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 10:17:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-18 10:17:08,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 10:17:08,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 10:17:08,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 10:17:08,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 10:17:08,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 10:17:08,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 10:17:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-18 10:17:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-18 10:17:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-18 10:17:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-18 10:17:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-18 10:17:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-18 10:17:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-18 10:17:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-18 10:17:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-18 10:17:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-18 10:17:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-18 10:17:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-18 10:17:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-18 10:17:08,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-18 10:17:08,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-18 10:17:08,120 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-18 10:17:08,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-18 10:17:08,120 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-18 10:17:08,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-18 10:17:08,121 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-18 10:17:08,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-18 10:17:08,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-18 10:17:08,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-18 10:17:08,121 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-18 10:17:08,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-18 10:17:08,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-18 10:17:08,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-18 10:17:08,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-18 10:17:08,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-18 10:17:08,122 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-18 10:17:08,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-18 10:17:08,123 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-18 10:17:08,123 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-18 10:17:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 10:17:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 10:17:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 10:17:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-18 10:17:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-18 10:17:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-18 10:17:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 10:17:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 10:17:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 10:17:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-18 10:17:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-18 10:17:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-18 10:17:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-18 10:17:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-18 10:17:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-18 10:17:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-18 10:17:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-18 10:17:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-18 10:17:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-18 10:17:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 10:17:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 10:17:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 10:17:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-18 10:17:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 10:17:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 10:17:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-18 10:17:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-18 10:17:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-18 10:17:08,127 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-18 10:17:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-18 10:17:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-18 10:17:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-18 10:17:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-18 10:17:08,128 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-18 10:17:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-18 10:17:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-18 10:17:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-18 10:17:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-18 10:17:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-18 10:17:08,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-18 10:17:08,130 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-18 10:17:08,130 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-18 10:17:08,130 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-18 10:17:08,130 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-18 10:17:08,130 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-18 10:17:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-18 10:17:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-18 10:17:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-18 10:17:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-18 10:17:08,131 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-18 10:17:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-18 10:17:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-18 10:17:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-18 10:17:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-18 10:17:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-18 10:17:08,132 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-18 10:17:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-18 10:17:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 10:17:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 10:17:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-18 10:17:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-18 10:17:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 10:17:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 10:17:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 10:17:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 10:17:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 10:17:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 10:17:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 10:17:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 10:17:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 10:17:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 10:17:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 10:17:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 10:17:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 10:17:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 10:17:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 10:17:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 10:17:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-18 10:17:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-18 10:17:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-18 10:17:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-18 10:17:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-18 10:17:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-18 10:17:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-18 10:17:08,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-18 10:17:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-18 10:17:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-18 10:17:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-18 10:17:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-18 10:17:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-18 10:17:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-18 10:17:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-18 10:17:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-18 10:17:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-18 10:17:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-18 10:17:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-18 10:17:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-18 10:17:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-18 10:17:08,140 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-18 10:17:08,140 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-18 10:17:08,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-18 10:17:08,140 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-18 10:17:08,140 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-18 10:17:08,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 10:17:08,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 10:17:08,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 10:17:09,846 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 10:17:09,847 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 10:17:09,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:17:09 BoogieIcfgContainer [2020-08-18 10:17:09,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 10:17:09,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 10:17:09,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 10:17:09,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 10:17:09,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:17:06" (1/3) ... [2020-08-18 10:17:09,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5c78d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:17:09, skipping insertion in model container [2020-08-18 10:17:09,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:17:07" (2/3) ... [2020-08-18 10:17:09,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5c78d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:17:09, skipping insertion in model container [2020-08-18 10:17:09,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:17:09" (3/3) ... [2020-08-18 10:17:09,861 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-18 10:17:09,872 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 10:17:09,881 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 10:17:09,896 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 10:17:09,922 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 10:17:09,923 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 10:17:09,923 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 10:17:09,923 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 10:17:09,923 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 10:17:09,923 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 10:17:09,923 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 10:17:09,923 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 10:17:09,946 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-18 10:17:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-18 10:17:09,960 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:17:09,961 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:17:09,961 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:17:09,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:17:09,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-18 10:17:09,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:17:09,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147703436] [2020-08-18 10:17:09,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:17:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:11,841 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 10:17:11,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:17:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:11,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:17:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:11,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:17:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:11,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:17:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:11,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:17:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:11,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:11,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:11,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 10:17:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 10:17:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-18 10:17:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:17:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-18 10:17:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-18 10:17:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-18 10:17:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 10:17:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-18 10:17:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-18 10:17:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:12,291 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 10:17:12,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147703436] [2020-08-18 10:17:12,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 10:17:12,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-18 10:17:12,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404543933] [2020-08-18 10:17:12,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 10:17:12,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:17:12,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 10:17:12,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 10:17:12,320 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-18 10:17:14,391 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 10:17:15,877 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 10:17:17,098 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 10:17:18,315 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 10:17:24,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:17:24,125 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-18 10:17:24,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-18 10:17:24,129 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-18 10:17:24,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:17:24,148 INFO L225 Difference]: With dead ends: 573 [2020-08-18 10:17:24,148 INFO L226 Difference]: Without dead ends: 340 [2020-08-18 10:17:24,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-18 10:17:24,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-18 10:17:24,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-18 10:17:24,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-18 10:17:24,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-18 10:17:24,315 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-18 10:17:24,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:17:24,316 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-18 10:17:24,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 10:17:24,317 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-18 10:17:24,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-18 10:17:24,321 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:17:24,321 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:17:24,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 10:17:24,322 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:17:24,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:17:24,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-18 10:17:24,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:17:24,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436755497] [2020-08-18 10:17:24,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:17:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,556 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 10:17:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:17:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:17:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:17:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:17:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:17:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 10:17:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:17:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 10:17:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:17:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-18 10:17:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-18 10:17:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 10:17:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 10:17:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-18 10:17:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-18 10:17:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:25,952 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 10:17:25,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436755497] [2020-08-18 10:17:25,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:17:25,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 10:17:25,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557167836] [2020-08-18 10:17:25,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 10:17:25,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:17:25,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 10:17:25,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 10:17:25,956 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-18 10:17:27,760 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 10:17:29,306 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 10:17:30,514 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 10:17:31,746 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 10:17:36,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:17:36,258 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-18 10:17:36,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 10:17:36,259 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-18 10:17:36,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:17:36,263 INFO L225 Difference]: With dead ends: 509 [2020-08-18 10:17:36,264 INFO L226 Difference]: Without dead ends: 346 [2020-08-18 10:17:36,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 10:17:36,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-18 10:17:36,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-18 10:17:36,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 10:17:36,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-18 10:17:36,379 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-18 10:17:36,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:17:36,379 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-18 10:17:36,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 10:17:36,380 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-18 10:17:36,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-18 10:17:36,383 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:17:36,383 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:17:36,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 10:17:36,384 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:17:36,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:17:36,384 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-18 10:17:36,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:17:36,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706946117] [2020-08-18 10:17:36,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:17:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,615 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 10:17:37,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:17:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:17:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:17:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:17:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:17:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 10:17:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:17:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 10:17:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:17:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-18 10:17:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 10:17:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 10:17:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-18 10:17:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 10:17:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:37,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 10:17:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 10:17:38,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706946117] [2020-08-18 10:17:38,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:17:38,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 10:17:38,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524926268] [2020-08-18 10:17:38,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 10:17:38,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:17:38,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 10:17:38,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 10:17:38,010 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-18 10:17:39,904 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 10:17:41,459 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 10:17:42,607 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 10:17:43,749 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 10:17:47,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:17:47,904 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-18 10:17:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 10:17:47,905 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-18 10:17:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:17:47,909 INFO L225 Difference]: With dead ends: 509 [2020-08-18 10:17:47,909 INFO L226 Difference]: Without dead ends: 348 [2020-08-18 10:17:47,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 10:17:47,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-18 10:17:48,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-18 10:17:48,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 10:17:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-18 10:17:48,022 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-18 10:17:48,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:17:48,023 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-18 10:17:48,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 10:17:48,024 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-18 10:17:48,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-18 10:17:48,031 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:17:48,031 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:17:48,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 10:17:48,032 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:17:48,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:17:48,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-18 10:17:48,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:17:48,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091312453] [2020-08-18 10:17:48,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:17:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,316 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 10:17:49,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:17:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:17:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:17:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:17:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:17:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 10:17:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:17:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-18 10:17:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:17:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 10:17:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 10:17:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 10:17:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 10:17:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-18 10:17:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-18 10:17:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 10:17:49,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091312453] [2020-08-18 10:17:49,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:17:49,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 10:17:49,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187926930] [2020-08-18 10:17:49,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 10:17:49,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:17:49,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 10:17:49,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-18 10:17:49,556 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-18 10:17:51,745 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 10:17:55,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:17:55,620 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-18 10:17:55,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 10:17:55,621 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-18 10:17:55,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:17:55,624 INFO L225 Difference]: With dead ends: 463 [2020-08-18 10:17:55,624 INFO L226 Difference]: Without dead ends: 347 [2020-08-18 10:17:55,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-18 10:17:55,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-18 10:17:55,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-18 10:17:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-18 10:17:55,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-18 10:17:55,706 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-18 10:17:55,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:17:55,707 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-18 10:17:55,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 10:17:55,707 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-18 10:17:55,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-18 10:17:55,709 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:17:55,709 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:17:55,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 10:17:55,710 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:17:55,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:17:55,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-18 10:17:55,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:17:55,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451082472] [2020-08-18 10:17:55,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:17:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,307 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 10:17:57,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:17:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:17:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:17:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:17:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:17:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 10:17:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:17:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 10:17:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:17:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 10:17:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 10:17:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-18 10:17:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-18 10:17:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:17:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-18 10:17:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-18 10:17:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:17:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 10:17:57,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451082472] [2020-08-18 10:17:57,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 10:17:57,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 10:17:57,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255622037] [2020-08-18 10:17:57,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 10:17:57,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:17:57,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 10:17:57,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-18 10:17:57,599 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-18 10:17:59,644 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 10:18:00,847 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 10:18:04,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 10:18:04,919 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-18 10:18:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 10:18:04,920 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-18 10:18:04,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 10:18:04,923 INFO L225 Difference]: With dead ends: 495 [2020-08-18 10:18:04,923 INFO L226 Difference]: Without dead ends: 379 [2020-08-18 10:18:04,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-18 10:18:04,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-18 10:18:05,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-18 10:18:05,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-18 10:18:05,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-18 10:18:05,018 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-18 10:18:05,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 10:18:05,019 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-18 10:18:05,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 10:18:05,019 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-18 10:18:05,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-18 10:18:05,021 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 10:18:05,021 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 10:18:05,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 10:18:05,022 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 10:18:05,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 10:18:05,022 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-18 10:18:05,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 10:18:05,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075988030] [2020-08-18 10:18:05,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 10:18:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,251 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 10:18:06,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 10:18:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:18:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 10:18:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 10:18:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 10:18:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:18:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:18:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 10:18:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:18:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 10:18:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:18:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 10:18:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:18:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 10:18:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 10:18:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-18 10:18:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-18 10:18:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-18 10:18:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 10:18:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 10:18:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-18 10:18:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 10:18:06,504 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 10:18:06,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075988030] [2020-08-18 10:18:06,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 10:18:06,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 10:18:06,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293088176] [2020-08-18 10:18:06,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 10:18:06,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 10:18:06,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 10:18:06,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-18 10:18:06,507 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states. [2020-08-18 10:18:08,326 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 502