/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=HIGHLEXORDER --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 18:41:52,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:41:52,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:41:52,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:41:52,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:41:52,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:41:52,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:41:52,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:41:52,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:41:52,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:41:52,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:41:52,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:41:52,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:41:52,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:41:52,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:41:52,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:41:52,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:41:52,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:41:52,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:41:52,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:41:52,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:41:52,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:41:52,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:41:52,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:41:52,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:41:52,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:41:52,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:41:52,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:41:52,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:41:52,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:41:52,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:41:52,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:41:52,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:41:52,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:41:52,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:41:52,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:41:52,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:41:52,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:41:52,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:41:52,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:41:52,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:41:52,267 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 18:41:52,289 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:41:52,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:41:52,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:41:52,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:41:52,291 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:41:52,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:41:52,292 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:41:52,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:41:52,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:41:52,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:41:52,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:41:52,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:41:52,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:41:52,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:41:52,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:41:52,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:41:52,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:41:52,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:41:52,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:41:52,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:41:52,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:41:52,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:41:52,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:41:52,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:41:52,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:41:52,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:41:52,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:41:52,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:41:52,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:41:52,296 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=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-08-21 18:41:52,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:41:52,619 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:41:52,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:41:52,624 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:41:52,624 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:41:52,625 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 18:41:52,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c40dcaac4/b1253ba787614c40b7f90d6dcc219ad3/FLAGcf6932aac [2020-08-21 18:41:53,331 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:41:53,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-21 18:41:53,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c40dcaac4/b1253ba787614c40b7f90d6dcc219ad3/FLAGcf6932aac [2020-08-21 18:41:53,525 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c40dcaac4/b1253ba787614c40b7f90d6dcc219ad3 [2020-08-21 18:41:53,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:41:53,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:41:53,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:41:53,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:41:53,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:41:53,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:41:53" (1/1) ... [2020-08-21 18:41:53,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:41:53, skipping insertion in model container [2020-08-21 18:41:53,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:41:53" (1/1) ... [2020-08-21 18:41:53,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:41:53,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:41:54,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:41:54,231 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:41:54,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:41:54,433 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:41:54,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:41:54 WrapperNode [2020-08-21 18:41:54,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:41:54,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:41:54,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:41:54,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:41:54,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:41:54" (1/1) ... [2020-08-21 18:41:54,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:41:54" (1/1) ... [2020-08-21 18:41:54,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:41:54" (1/1) ... [2020-08-21 18:41:54,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:41:54" (1/1) ... [2020-08-21 18:41:54,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:41:54" (1/1) ... [2020-08-21 18:41:54,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:41:54" (1/1) ... [2020-08-21 18:41:54,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:41:54" (1/1) ... [2020-08-21 18:41:54,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:41:54,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:41:54,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:41:54,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:41:54,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:41:54" (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 18:41:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:41:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:41:54,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 18:41:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-21 18:41:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-21 18:41:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-21 18:41:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-21 18:41:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-21 18:41:54,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 18:41:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:41:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-21 18:41:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 18:41:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 18:41:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 18:41:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 18:41:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 18:41:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-21 18:41:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-21 18:41:54,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-21 18:41:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-21 18:41:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-21 18:41:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-21 18:41:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-21 18:41:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-21 18:41:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-21 18:41:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-21 18:41:54,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-21 18:41:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-21 18:41:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-21 18:41:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-21 18:41:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-21 18:41:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-21 18:41:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-21 18:41:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-21 18:41:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-21 18:41:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-21 18:41:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-21 18:41:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-21 18:41:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-21 18:41:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-21 18:41:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-21 18:41:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-21 18:41:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-21 18:41:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-21 18:41:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-21 18:41:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-21 18:41:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-21 18:41:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-21 18:41:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-21 18:41:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 18:41:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 18:41:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-21 18:41:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 18:41:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 18:41:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 18:41:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 18:41:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 18:41:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 18:41:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-21 18:41:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-21 18:41:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-21 18:41:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-21 18:41:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-21 18:41:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-21 18:41:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-21 18:41:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-21 18:41:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-21 18:41:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-21 18:41:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-21 18:41:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-21 18:41:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-21 18:41:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-21 18:41:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-21 18:41:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-21 18:41:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-21 18:41:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-21 18:41:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-21 18:41:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-21 18:41:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-21 18:41:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-21 18:41:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-21 18:41:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-21 18:41:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-21 18:41:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-21 18:41:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-21 18:41:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-21 18:41:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-21 18:41:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-21 18:41:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-21 18:41:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-21 18:41:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-21 18:41:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:41:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 18:41:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 18:41:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-21 18:41:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-21 18:41:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-21 18:41:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 18:41:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 18:41:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 18:41:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-21 18:41:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-21 18:41:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-21 18:41:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-21 18:41:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-21 18:41:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-21 18:41:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-21 18:41:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-21 18:41:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-21 18:41:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-21 18:41:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 18:41:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 18:41:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:41:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-21 18:41:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 18:41:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 18:41:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-21 18:41:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-21 18:41:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-21 18:41:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-21 18:41:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-21 18:41:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-21 18:41:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-21 18:41:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-21 18:41:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-21 18:41:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-21 18:41:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-21 18:41:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-21 18:41:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-21 18:41:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-21 18:41:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-21 18:41:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-21 18:41:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-21 18:41:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-21 18:41:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-21 18:41:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-21 18:41:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-21 18:41:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-21 18:41:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-21 18:41:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-21 18:41:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-21 18:41:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-21 18:41:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-21 18:41:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-21 18:41:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-21 18:41:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-21 18:41:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-21 18:41:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-21 18:41:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-21 18:41:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 18:41:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-21 18:41:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-21 18:41:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 18:41:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 18:41:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 18:41:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 18:41:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 18:41:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 18:41:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 18:41:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 18:41:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 18:41:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 18:41:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 18:41:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 18:41:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 18:41:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 18:41:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 18:41:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 18:41:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-21 18:41:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-21 18:41:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-21 18:41:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-21 18:41:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-21 18:41:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-21 18:41:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-21 18:41:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-21 18:41:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-21 18:41:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-21 18:41:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-21 18:41:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-21 18:41:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-21 18:41:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-21 18:41:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-21 18:41:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-21 18:41:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-21 18:41:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-21 18:41:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-21 18:41:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-21 18:41:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-21 18:41:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-21 18:41:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-21 18:41:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-21 18:41:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-21 18:41:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-21 18:41:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:41:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 18:41:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:41:56,613 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:41:56,614 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 18:41:56,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:41:56 BoogieIcfgContainer [2020-08-21 18:41:56,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:41:56,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:41:56,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:41:56,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:41:56,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:41:53" (1/3) ... [2020-08-21 18:41:56,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139143ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:41:56, skipping insertion in model container [2020-08-21 18:41:56,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:41:54" (2/3) ... [2020-08-21 18:41:56,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139143ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:41:56, skipping insertion in model container [2020-08-21 18:41:56,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:41:56" (3/3) ... [2020-08-21 18:41:56,628 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-21 18:41:56,638 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:41:56,647 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:41:56,661 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:41:56,683 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:41:56,684 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:41:56,684 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:41:56,684 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:41:56,684 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:41:56,684 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:41:56,684 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:41:56,685 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:41:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-21 18:41:56,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-21 18:41:56,723 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:41:56,724 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 18:41:56,725 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:41:56,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:41:56,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-21 18:41:56,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:41:56,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077978994] [2020-08-21 18:41:56,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:41:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:58,754 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 18:41:58,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:41:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:58,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:41:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:58,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:41:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:58,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:41:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:58,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:41:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:58,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:41:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:58,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:41:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:58,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 18:41:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:41:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-21 18:41:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:41:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-21 18:41:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:41:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:41:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 18:41:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 18:41:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-21 18:41:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 18:41:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:41:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-21 18:41:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-21 18:41:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:41:59,201 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 18:41:59,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077978994] [2020-08-21 18:41:59,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 18:41:59,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-21 18:41:59,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778807329] [2020-08-21 18:41:59,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 18:41:59,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:41:59,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 18:41:59,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 18:41:59,229 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-21 18:42:01,299 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 18:42:02,826 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 18:42:04,049 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 18:42:05,287 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 18:42:11,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:42:11,126 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-21 18:42:11,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 18:42:11,129 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-21 18:42:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:42:11,146 INFO L225 Difference]: With dead ends: 573 [2020-08-21 18:42:11,147 INFO L226 Difference]: Without dead ends: 340 [2020-08-21 18:42:11,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-21 18:42:11,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-21 18:42:11,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-21 18:42:11,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-21 18:42:11,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-21 18:42:11,313 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-21 18:42:11,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:42:11,314 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-21 18:42:11,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 18:42:11,314 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-21 18:42:11,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-21 18:42:11,318 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:42:11,318 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 18:42:11,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:42:11,319 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:42:11,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:42:11,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-21 18:42:11,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:42:11,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443993233] [2020-08-21 18:42:11,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:42:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,616 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 18:42:12,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:42:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:42:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:42:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:42:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:42:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 18:42:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:42:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 18:42:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:42:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-21 18:42:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 18:42:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 18:42:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 18:42:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-21 18:42:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-21 18:42:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:12,949 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 18:42:12,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443993233] [2020-08-21 18:42:12,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:42:12,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 18:42:12,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684600641] [2020-08-21 18:42:12,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 18:42:12,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:42:12,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 18:42:12,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 18:42:12,954 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-21 18:42:14,753 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 18:42:16,346 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 18:42:17,540 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 18:42:18,737 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 18:42:23,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:42:23,242 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-21 18:42:23,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 18:42:23,242 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-21 18:42:23,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:42:23,248 INFO L225 Difference]: With dead ends: 509 [2020-08-21 18:42:23,248 INFO L226 Difference]: Without dead ends: 346 [2020-08-21 18:42:23,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 18:42:23,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-21 18:42:23,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-21 18:42:23,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 18:42:23,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-21 18:42:23,359 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-21 18:42:23,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:42:23,360 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-21 18:42:23,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 18:42:23,360 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-21 18:42:23,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-21 18:42:23,363 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:42:23,364 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 18:42:23,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:42:23,364 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:42:23,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:42:23,365 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-21 18:42:23,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:42:23,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050427395] [2020-08-21 18:42:23,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:42:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,614 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 18:42:24,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:42:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:42:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:42:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:42:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:42:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 18:42:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:42:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 18:42:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:42:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-21 18:42:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 18:42:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 18:42:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 18:42:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 18:42:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 18:42:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:24,985 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 18:42:24,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050427395] [2020-08-21 18:42:24,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:42:24,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-21 18:42:24,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595564212] [2020-08-21 18:42:24,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-21 18:42:24,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:42:24,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-21 18:42:24,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-21 18:42:24,988 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-21 18:42:27,143 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 18:42:28,687 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-21 18:42:29,847 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 18:42:31,034 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-21 18:42:35,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:42:35,374 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-21 18:42:35,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 18:42:35,375 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-21 18:42:35,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:42:35,379 INFO L225 Difference]: With dead ends: 509 [2020-08-21 18:42:35,379 INFO L226 Difference]: Without dead ends: 348 [2020-08-21 18:42:35,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-21 18:42:35,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-21 18:42:35,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-21 18:42:35,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 18:42:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-21 18:42:35,484 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-21 18:42:35,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:42:35,485 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-21 18:42:35,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-21 18:42:35,485 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-21 18:42:35,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-21 18:42:35,487 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:42:35,488 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 18:42:35,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 18:42:35,488 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:42:35,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:42:35,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-21 18:42:35,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:42:35,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776613992] [2020-08-21 18:42:35,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:42:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:36,970 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 18:42:36,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:42:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:42:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:42:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:42:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:42:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 18:42:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:42:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-21 18:42:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:42:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 18:42:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 18:42:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 18:42:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 18:42:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-21 18:42:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-21 18:42:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:37,230 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 18:42:37,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776613992] [2020-08-21 18:42:37,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:42:37,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 18:42:37,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388671115] [2020-08-21 18:42:37,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 18:42:37,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:42:37,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 18:42:37,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 18:42:37,234 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-21 18:42:39,430 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 18:42:43,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:42:43,441 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-21 18:42:43,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 18:42:43,442 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-21 18:42:43,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:42:43,444 INFO L225 Difference]: With dead ends: 463 [2020-08-21 18:42:43,444 INFO L226 Difference]: Without dead ends: 347 [2020-08-21 18:42:43,445 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 18:42:43,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-21 18:42:43,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-21 18:42:43,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-21 18:42:43,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-21 18:42:43,537 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-21 18:42:43,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:42:43,538 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-21 18:42:43,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 18:42:43,538 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-21 18:42:43,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-21 18:42:43,540 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:42:43,540 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 18:42:43,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 18:42:43,541 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:42:43,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:42:43,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-21 18:42:43,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:42:43,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286403365] [2020-08-21 18:42:43,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:42:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,825 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 18:42:44,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:42:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:42:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:42:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:42:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:42:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 18:42:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:42:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-21 18:42:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:44,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:45,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:42:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:45,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-21 18:42:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:45,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 18:42:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:45,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 18:42:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:45,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 18:42:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:45,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:45,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 18:42:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:45,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-21 18:42:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:45,057 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 18:42:45,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286403365] [2020-08-21 18:42:45,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 18:42:45,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 18:42:45,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415123407] [2020-08-21 18:42:45,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 18:42:45,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:42:45,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 18:42:45,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-21 18:42:45,060 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-21 18:42:47,086 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 18:42:48,226 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-21 18:42:52,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:42:52,129 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-21 18:42:52,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 18:42:52,131 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-21 18:42:52,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:42:52,134 INFO L225 Difference]: With dead ends: 495 [2020-08-21 18:42:52,134 INFO L226 Difference]: Without dead ends: 379 [2020-08-21 18:42:52,135 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 18:42:52,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-21 18:42:52,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-21 18:42:52,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-21 18:42:52,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-21 18:42:52,235 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-21 18:42:52,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:42:52,235 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-21 18:42:52,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 18:42:52,236 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-21 18:42:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-21 18:42:52,238 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:42:52,238 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 18:42:52,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 18:42:52,238 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:42:52,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:42:52,239 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-21 18:42:52,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:42:52,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063144488] [2020-08-21 18:42:52,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:42:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,510 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-21 18:42:53,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:42:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:42:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 18:42:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 18:42:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 18:42:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 18:42:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 18:42:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-21 18:42:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:42:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 18:42:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-21 18:42:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-21 18:42:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-21 18:42:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 18:42:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-21 18:42:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-21 18:42:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:42:53,811 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 18:42:53,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063144488] [2020-08-21 18:42:53,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:42:53,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 18:42:53,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870073256] [2020-08-21 18:42:53,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 18:42:53,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:42:53,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 18:42:53,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-21 18:42:53,816 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states.