/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 17:53:31,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 17:53:31,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 17:53:31,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 17:53:31,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 17:53:31,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 17:53:31,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 17:53:31,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 17:53:31,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 17:53:31,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 17:53:31,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 17:53:31,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 17:53:31,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 17:53:31,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 17:53:31,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 17:53:31,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 17:53:31,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 17:53:31,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 17:53:31,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 17:53:31,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 17:53:31,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 17:53:31,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 17:53:31,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 17:53:31,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 17:53:32,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 17:53:32,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 17:53:32,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 17:53:32,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 17:53:32,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 17:53:32,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 17:53:32,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 17:53:32,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 17:53:32,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 17:53:32,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 17:53:32,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 17:53:32,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 17:53:32,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 17:53:32,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 17:53:32,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 17:53:32,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 17:53:32,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 17:53:32,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 17:53:32,061 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 17:53:32,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 17:53:32,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 17:53:32,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 17:53:32,064 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 17:53:32,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 17:53:32,064 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 17:53:32,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 17:53:32,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 17:53:32,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 17:53:32,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 17:53:32,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 17:53:32,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 17:53:32,067 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 17:53:32,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 17:53:32,067 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 17:53:32,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 17:53:32,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 17:53:32,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 17:53:32,068 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 17:53:32,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 17:53:32,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 17:53:32,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 17:53:32,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 17:53:32,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 17:53:32,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 17:53:32,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 17:53:32,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 17:53:32,070 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 17:53:32,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-08-21 17:53:32,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 17:53:32,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 17:53:32,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 17:53:32,385 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 17:53:32,386 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 17:53:32,386 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 17:53:32,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1db9b2fca/a0d47e27486641c5931bea233801690b/FLAG764d9ac4b [2020-08-21 17:53:33,090 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 17:53:33,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 17:53:33,111 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1db9b2fca/a0d47e27486641c5931bea233801690b/FLAG764d9ac4b [2020-08-21 17:53:33,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1db9b2fca/a0d47e27486641c5931bea233801690b [2020-08-21 17:53:33,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 17:53:33,254 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 17:53:33,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 17:53:33,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 17:53:33,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 17:53:33,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:53:33" (1/1) ... [2020-08-21 17:53:33,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9a5625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:53:33, skipping insertion in model container [2020-08-21 17:53:33,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:53:33" (1/1) ... [2020-08-21 17:53:33,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 17:53:33,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 17:53:34,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:53:34,103 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 17:53:34,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:53:34,271 INFO L208 MainTranslator]: Completed translation [2020-08-21 17:53:34,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:53:34 WrapperNode [2020-08-21 17:53:34,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 17:53:34,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 17:53:34,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 17:53:34,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 17:53:34,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:53:34" (1/1) ... [2020-08-21 17:53:34,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:53:34" (1/1) ... [2020-08-21 17:53:34,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:53:34" (1/1) ... [2020-08-21 17:53:34,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:53:34" (1/1) ... [2020-08-21 17:53:34,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:53:34" (1/1) ... [2020-08-21 17:53:34,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:53:34" (1/1) ... [2020-08-21 17:53:34,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:53:34" (1/1) ... [2020-08-21 17:53:34,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 17:53:34,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 17:53:34,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 17:53:34,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 17:53:34,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:53:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 17:53:34,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 17:53:34,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 17:53:34,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 17:53:34,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-21 17:53:34,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-21 17:53:34,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-21 17:53:34,520 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-21 17:53:34,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-21 17:53:34,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 17:53:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 17:53:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-21 17:53:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 17:53:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 17:53:34,523 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 17:53:34,523 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 17:53:34,524 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 17:53:34,524 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-21 17:53:34,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-21 17:53:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-21 17:53:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-21 17:53:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-21 17:53:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-21 17:53:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-21 17:53:34,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-21 17:53:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-21 17:53:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-21 17:53:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-21 17:53:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-21 17:53:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-21 17:53:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-21 17:53:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-21 17:53:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-21 17:53:34,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-21 17:53:34,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-21 17:53:34,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-21 17:53:34,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-21 17:53:34,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-21 17:53:34,529 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-21 17:53:34,529 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-21 17:53:34,529 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-21 17:53:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-21 17:53:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-21 17:53:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-21 17:53:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-21 17:53:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-21 17:53:34,530 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-21 17:53:34,532 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-21 17:53:34,532 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-21 17:53:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-21 17:53:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 17:53:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 17:53:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-21 17:53:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 17:53:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 17:53:34,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 17:53:34,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 17:53:34,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 17:53:34,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 17:53:34,535 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-21 17:53:34,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-21 17:53:34,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-21 17:53:34,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-21 17:53:34,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-21 17:53:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-21 17:53:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-21 17:53:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-21 17:53:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-21 17:53:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-21 17:53:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-21 17:53:34,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-21 17:53:34,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-21 17:53:34,538 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-21 17:53:34,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-21 17:53:34,539 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-21 17:53:34,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-21 17:53:34,539 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-21 17:53:34,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-21 17:53:34,540 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-21 17:53:34,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-21 17:53:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-21 17:53:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-21 17:53:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-21 17:53:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-21 17:53:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-21 17:53:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-21 17:53:34,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-21 17:53:34,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-21 17:53:34,542 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-21 17:53:34,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-21 17:53:34,542 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-21 17:53:34,542 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-21 17:53:34,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 17:53:34,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 17:53:34,543 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 17:53:34,543 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-21 17:53:34,543 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-21 17:53:34,543 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-21 17:53:34,544 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 17:53:34,544 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 17:53:34,544 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 17:53:34,544 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-21 17:53:34,544 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-21 17:53:34,544 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-21 17:53:34,545 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-21 17:53:34,545 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-21 17:53:34,545 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-21 17:53:34,545 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-21 17:53:34,545 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-21 17:53:34,545 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-21 17:53:34,546 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-21 17:53:34,546 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 17:53:34,546 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 17:53:34,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 17:53:34,546 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-21 17:53:34,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 17:53:34,547 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 17:53:34,547 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-21 17:53:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-21 17:53:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-21 17:53:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-21 17:53:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-21 17:53:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-21 17:53:34,549 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-21 17:53:34,551 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-21 17:53:34,551 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-21 17:53:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-21 17:53:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-21 17:53:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-21 17:53:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-21 17:53:34,552 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-21 17:53:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-21 17:53:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-21 17:53:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-21 17:53:34,557 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-21 17:53:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-21 17:53:34,558 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-21 17:53:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-21 17:53:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-21 17:53:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-21 17:53:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-21 17:53:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-21 17:53:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-21 17:53:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-21 17:53:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-21 17:53:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-21 17:53:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-21 17:53:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-21 17:53:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-21 17:53:34,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 17:53:34,570 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 17:53:34,570 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-21 17:53:34,570 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-21 17:53:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 17:53:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 17:53:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 17:53:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 17:53:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 17:53:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 17:53:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 17:53:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 17:53:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 17:53:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 17:53:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 17:53:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 17:53:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 17:53:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 17:53:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 17:53:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 17:53:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-21 17:53:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-21 17:53:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-21 17:53:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-21 17:53:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-21 17:53:34,576 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-21 17:53:34,576 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-21 17:53:34,577 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-21 17:53:34,577 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-21 17:53:34,577 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-21 17:53:34,577 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-21 17:53:34,577 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-21 17:53:34,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-21 17:53:34,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-21 17:53:34,578 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-21 17:53:34,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-21 17:53:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-21 17:53:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-21 17:53:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-21 17:53:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-21 17:53:34,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-21 17:53:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-21 17:53:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-21 17:53:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-21 17:53:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-21 17:53:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-21 17:53:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 17:53:34,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 17:53:34,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 17:53:36,437 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 17:53:36,438 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 17:53:36,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:53:36 BoogieIcfgContainer [2020-08-21 17:53:36,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 17:53:36,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 17:53:36,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 17:53:36,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 17:53:36,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:53:33" (1/3) ... [2020-08-21 17:53:36,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768aed00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:53:36, skipping insertion in model container [2020-08-21 17:53:36,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:53:34" (2/3) ... [2020-08-21 17:53:36,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768aed00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:53:36, skipping insertion in model container [2020-08-21 17:53:36,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:53:36" (3/3) ... [2020-08-21 17:53:36,462 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-21 17:53:36,477 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 17:53:36,489 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 17:53:36,508 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 17:53:36,543 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 17:53:36,543 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 17:53:36,543 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 17:53:36,543 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 17:53:36,543 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 17:53:36,543 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 17:53:36,544 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 17:53:36,544 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 17:53:36,579 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-21 17:53:36,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-21 17:53:36,602 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:53:36,603 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:53:36,604 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:53:36,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:53:36,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-21 17:53:36,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:53:36,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560104862] [2020-08-21 17:53:36,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:53:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,467 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:53:38,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:53:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:53:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:53:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:53:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:53:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:53:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 17:53:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-21 17:53:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:53:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 17:53:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 17:53:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-21 17:53:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 17:53:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-21 17:53:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-21 17:53:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:38,994 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 17:53:38,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560104862] [2020-08-21 17:53:38,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:53:38,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-21 17:53:38,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844404201] [2020-08-21 17:53:39,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 17:53:39,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:53:39,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 17:53:39,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 17:53:39,021 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-21 17:53:41,088 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:53:42,600 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 17:53:43,884 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:53:45,148 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:53:51,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:53:51,061 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-21 17:53:51,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 17:53:51,063 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-21 17:53:51,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:53:51,081 INFO L225 Difference]: With dead ends: 573 [2020-08-21 17:53:51,082 INFO L226 Difference]: Without dead ends: 340 [2020-08-21 17:53:51,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-21 17:53:51,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-21 17:53:51,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-21 17:53:51,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-21 17:53:51,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-21 17:53:51,224 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-21 17:53:51,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:53:51,225 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-21 17:53:51,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 17:53:51,225 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-21 17:53:51,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-21 17:53:51,228 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:53:51,229 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:53:51,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 17:53:51,229 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:53:51,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:53:51,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-21 17:53:51,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:53:51,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279445882] [2020-08-21 17:53:51,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:53:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,420 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:53:52,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:53:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:53:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:53:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:53:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:53:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:53:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:53:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 17:53:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:53:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 17:53:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 17:53:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 17:53:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 17:53:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:53:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-21 17:53:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-21 17:53:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:53:52,807 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 17:53:52,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279445882] [2020-08-21 17:53:52,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:53:52,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 17:53:52,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669418690] [2020-08-21 17:53:52,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 17:53:52,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:53:52,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 17:53:52,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 17:53:52,811 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-21 17:53:54,495 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:53:56,071 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 17:53:57,274 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:53:58,482 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:54:02,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:54:02,987 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-21 17:54:02,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 17:54:02,988 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-21 17:54:02,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:54:02,992 INFO L225 Difference]: With dead ends: 509 [2020-08-21 17:54:02,993 INFO L226 Difference]: Without dead ends: 346 [2020-08-21 17:54:02,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 17:54:02,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-21 17:54:03,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-21 17:54:03,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 17:54:03,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-21 17:54:03,108 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-21 17:54:03,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:54:03,109 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-21 17:54:03,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 17:54:03,109 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-21 17:54:03,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-21 17:54:03,111 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:54:03,112 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:54:03,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 17:54:03,112 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:54:03,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:54:03,113 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-21 17:54:03,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:54:03,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39641995] [2020-08-21 17:54:03,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:54:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,485 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:54:04,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:54:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:54:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:54:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:54:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:54:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:54:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:54:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 17:54:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:54:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-21 17:54:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 17:54:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 17:54:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 17:54:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 17:54:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 17:54:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:04,906 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-21 17:54:04,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39641995] [2020-08-21 17:54:04,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:54:04,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 17:54:04,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819055825] [2020-08-21 17:54:04,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 17:54:04,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:54:04,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 17:54:04,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 17:54:04,912 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-21 17:54:06,791 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:54:08,393 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 17:54:09,545 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:54:10,711 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 17:54:14,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:54:14,984 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-21 17:54:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 17:54:14,985 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-21 17:54:14,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:54:14,989 INFO L225 Difference]: With dead ends: 509 [2020-08-21 17:54:14,989 INFO L226 Difference]: Without dead ends: 348 [2020-08-21 17:54:14,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 17:54:14,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-21 17:54:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-21 17:54:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 17:54:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-21 17:54:15,092 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-21 17:54:15,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:54:15,093 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-21 17:54:15,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 17:54:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-21 17:54:15,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-21 17:54:15,095 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:54:15,095 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:54:15,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 17:54:15,096 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:54:15,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:54:15,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-21 17:54:15,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:54:15,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947497881] [2020-08-21 17:54:15,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:54:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,565 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:54:16,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:54:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:54:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:54:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:54:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:54:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:54:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:54:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-21 17:54:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:54:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 17:54:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 17:54:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 17:54:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 17:54:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-21 17:54:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 17:54:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:16,760 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 17:54:16,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947497881] [2020-08-21 17:54:16,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:54:16,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 17:54:16,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7471138] [2020-08-21 17:54:16,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 17:54:16,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:54:16,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 17:54:16,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 17:54:16,763 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-21 17:54:19,001 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:54:23,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:54:23,052 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-21 17:54:23,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 17:54:23,052 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-21 17:54:23,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:54:23,055 INFO L225 Difference]: With dead ends: 463 [2020-08-21 17:54:23,056 INFO L226 Difference]: Without dead ends: 347 [2020-08-21 17:54:23,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-21 17:54:23,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-21 17:54:23,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-21 17:54:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-21 17:54:23,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-21 17:54:23,150 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-21 17:54:23,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:54:23,151 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-21 17:54:23,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 17:54:23,151 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-21 17:54:23,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-21 17:54:23,153 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:54:23,153 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:54:23,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 17:54:23,154 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:54:23,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:54:23,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-21 17:54:23,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:54:23,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606359206] [2020-08-21 17:54:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:54:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,502 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:54:24,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:54:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:54:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:54:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:54:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:54:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:54:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:54:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-21 17:54:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:54:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 17:54:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 17:54:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 17:54:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 17:54:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 17:54:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-21 17:54:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 17:54:24,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606359206] [2020-08-21 17:54:24,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 17:54:24,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 17:54:24,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336309724] [2020-08-21 17:54:24,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 17:54:24,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:54:24,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 17:54:24,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-21 17:54:24,717 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-21 17:54:26,713 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:54:27,864 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 17:54:31,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:54:31,734 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-21 17:54:31,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 17:54:31,735 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-21 17:54:31,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:54:31,738 INFO L225 Difference]: With dead ends: 495 [2020-08-21 17:54:31,738 INFO L226 Difference]: Without dead ends: 379 [2020-08-21 17:54:31,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-21 17:54:31,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-21 17:54:31,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-21 17:54:31,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-21 17:54:31,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-21 17:54:31,862 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-21 17:54:31,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:54:31,862 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-21 17:54:31,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 17:54:31,863 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-21 17:54:31,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-21 17:54:31,865 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:54:31,865 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 17:54:31,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 17:54:31,866 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:54:31,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:54:31,866 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-21 17:54:31,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:54:31,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852293437] [2020-08-21 17:54:31,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:54:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,125 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 17:54:33,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:54:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:54:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:54:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:54:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:54:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 17:54:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 17:54:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 17:54:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:54:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 17:54:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-21 17:54:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 17:54:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-21 17:54:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 17:54:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 17:54:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-21 17:54:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:54:33,404 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-21 17:54:33,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852293437] [2020-08-21 17:54:33,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:54:33,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 17:54:33,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923018959] [2020-08-21 17:54:33,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 17:54:33,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:54:33,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 17:54:33,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-21 17:54:33,409 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states.