/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 00:05:06,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 00:05:06,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 00:05:06,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 00:05:06,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 00:05:06,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 00:05:06,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 00:05:06,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 00:05:06,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 00:05:06,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 00:05:06,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 00:05:06,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 00:05:06,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 00:05:06,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 00:05:06,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 00:05:06,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 00:05:06,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 00:05:06,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 00:05:06,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 00:05:06,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 00:05:06,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 00:05:06,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 00:05:06,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 00:05:06,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 00:05:06,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 00:05:06,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 00:05:06,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 00:05:06,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 00:05:06,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 00:05:06,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 00:05:06,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 00:05:06,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 00:05:06,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 00:05:06,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 00:05:06,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 00:05:06,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 00:05:06,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 00:05:06,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 00:05:06,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 00:05:06,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 00:05:06,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 00:05:06,591 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 00:05:06,633 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 00:05:06,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 00:05:06,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 00:05:06,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 00:05:06,636 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 00:05:06,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 00:05:06,636 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 00:05:06,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 00:05:06,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 00:05:06,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 00:05:06,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 00:05:06,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 00:05:06,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 00:05:06,638 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 00:05:06,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 00:05:06,638 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 00:05:06,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 00:05:06,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 00:05:06,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 00:05:06,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 00:05:06,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 00:05:06,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:05:06,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 00:05:06,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 00:05:06,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 00:05:06,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 00:05:06,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 00:05:06,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 00:05:06,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 00:05:06,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; [2020-08-19 00:05:06,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 00:05:06,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 00:05:06,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 00:05:06,957 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 00:05:06,958 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 00:05:06,958 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-19 00:05:07,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a1bedb75/57a2284cb97841ffb3db4fae581b9c0b/FLAGc5c981e6f [2020-08-19 00:05:07,662 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 00:05:07,663 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-19 00:05:07,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a1bedb75/57a2284cb97841ffb3db4fae581b9c0b/FLAGc5c981e6f [2020-08-19 00:05:07,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a1bedb75/57a2284cb97841ffb3db4fae581b9c0b [2020-08-19 00:05:07,929 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 00:05:07,931 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 00:05:07,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 00:05:07,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 00:05:07,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 00:05:07,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:05:07" (1/1) ... [2020-08-19 00:05:07,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20abf48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:05:07, skipping insertion in model container [2020-08-19 00:05:07,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:05:07" (1/1) ... [2020-08-19 00:05:07,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 00:05:08,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 00:05:08,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:05:08,731 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 00:05:08,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:05:08,929 INFO L208 MainTranslator]: Completed translation [2020-08-19 00:05:08,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:05:08 WrapperNode [2020-08-19 00:05:08,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 00:05:08,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 00:05:08,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 00:05:08,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 00:05:08,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:05:08" (1/1) ... [2020-08-19 00:05:08,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:05:08" (1/1) ... [2020-08-19 00:05:08,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:05:08" (1/1) ... [2020-08-19 00:05:08,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:05:08" (1/1) ... [2020-08-19 00:05:09,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:05:08" (1/1) ... [2020-08-19 00:05:09,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:05:08" (1/1) ... [2020-08-19 00:05:09,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:05:08" (1/1) ... [2020-08-19 00:05:09,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 00:05:09,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 00:05:09,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 00:05:09,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 00:05:09,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:05:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:05:09,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 00:05:09,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 00:05:09,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 00:05:09,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-19 00:05:09,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-19 00:05:09,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-19 00:05:09,209 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-19 00:05:09,210 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-19 00:05:09,210 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 00:05:09,211 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 00:05:09,211 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-19 00:05:09,211 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 00:05:09,212 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 00:05:09,212 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 00:05:09,212 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 00:05:09,213 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 00:05:09,214 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-19 00:05:09,214 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-19 00:05:09,214 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-19 00:05:09,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-19 00:05:09,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-19 00:05:09,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-19 00:05:09,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-19 00:05:09,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-19 00:05:09,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-19 00:05:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-19 00:05:09,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-19 00:05:09,219 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-19 00:05:09,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-19 00:05:09,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-19 00:05:09,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-19 00:05:09,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-19 00:05:09,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-19 00:05:09,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-19 00:05:09,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-19 00:05:09,222 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-19 00:05:09,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-19 00:05:09,222 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-19 00:05:09,222 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-19 00:05:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-19 00:05:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-19 00:05:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-19 00:05:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-19 00:05:09,223 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-19 00:05:09,225 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-19 00:05:09,225 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-19 00:05:09,225 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-19 00:05:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-19 00:05:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-19 00:05:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-19 00:05:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 00:05:09,226 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-19 00:05:09,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 00:05:09,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 00:05:09,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 00:05:09,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 00:05:09,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 00:05:09,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 00:05:09,229 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-19 00:05:09,229 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-19 00:05:09,229 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-19 00:05:09,230 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-19 00:05:09,230 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-19 00:05:09,230 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-19 00:05:09,230 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-19 00:05:09,231 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-19 00:05:09,231 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-19 00:05:09,231 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-19 00:05:09,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-19 00:05:09,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-19 00:05:09,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-19 00:05:09,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-19 00:05:09,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-19 00:05:09,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-19 00:05:09,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-19 00:05:09,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-19 00:05:09,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-19 00:05:09,236 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-19 00:05:09,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-19 00:05:09,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-19 00:05:09,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-19 00:05:09,237 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-19 00:05:09,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-19 00:05:09,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-19 00:05:09,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-19 00:05:09,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-19 00:05:09,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-19 00:05:09,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-19 00:05:09,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-19 00:05:09,239 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-19 00:05:09,239 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-19 00:05:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 00:05:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 00:05:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 00:05:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-19 00:05:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-19 00:05:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-19 00:05:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 00:05:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 00:05:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 00:05:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-19 00:05:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-19 00:05:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-19 00:05:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-19 00:05:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-19 00:05:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-19 00:05:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-19 00:05:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-19 00:05:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-19 00:05:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-19 00:05:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 00:05:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 00:05:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 00:05:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-19 00:05:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 00:05:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 00:05:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-19 00:05:09,245 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-19 00:05:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-19 00:05:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-19 00:05:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-19 00:05:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-19 00:05:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-19 00:05:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-19 00:05:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-19 00:05:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-19 00:05:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-19 00:05:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-19 00:05:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-19 00:05:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-19 00:05:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-19 00:05:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-19 00:05:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-19 00:05:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-19 00:05:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-19 00:05:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-19 00:05:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-19 00:05:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-19 00:05:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-19 00:05:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-19 00:05:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-19 00:05:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-19 00:05:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-19 00:05:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-19 00:05:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-19 00:05:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-19 00:05:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-19 00:05:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-19 00:05:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-19 00:05:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 00:05:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-19 00:05:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-19 00:05:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 00:05:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 00:05:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 00:05:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 00:05:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 00:05:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 00:05:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 00:05:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 00:05:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 00:05:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 00:05:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 00:05:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 00:05:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 00:05:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 00:05:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 00:05:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 00:05:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-19 00:05:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-19 00:05:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-19 00:05:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-19 00:05:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-19 00:05:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-19 00:05:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-19 00:05:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-19 00:05:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-19 00:05:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-19 00:05:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-19 00:05:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-19 00:05:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-19 00:05:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-19 00:05:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-19 00:05:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-19 00:05:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-19 00:05:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-19 00:05:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-19 00:05:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-19 00:05:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-19 00:05:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-19 00:05:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-19 00:05:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-19 00:05:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-19 00:05:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-19 00:05:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 00:05:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 00:05:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 00:05:11,479 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 00:05:11,479 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 00:05:11,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:05:11 BoogieIcfgContainer [2020-08-19 00:05:11,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 00:05:11,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 00:05:11,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 00:05:11,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 00:05:11,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 12:05:07" (1/3) ... [2020-08-19 00:05:11,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78028e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:05:11, skipping insertion in model container [2020-08-19 00:05:11,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:05:08" (2/3) ... [2020-08-19 00:05:11,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78028e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:05:11, skipping insertion in model container [2020-08-19 00:05:11,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:05:11" (3/3) ... [2020-08-19 00:05:11,495 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-19 00:05:11,506 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 00:05:11,516 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 00:05:11,532 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 00:05:11,560 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 00:05:11,561 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 00:05:11,561 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 00:05:11,561 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 00:05:11,561 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 00:05:11,562 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 00:05:11,562 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 00:05:11,562 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 00:05:11,587 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-19 00:05:11,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-19 00:05:11,602 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:05:11,604 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:05:11,604 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:05:11,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:05:11,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-19 00:05:11,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:05:11,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715777879] [2020-08-19 00:05:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:05:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,605 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 00:05:13,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:05:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:05:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:05:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:05:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:05:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 00:05:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-19 00:05:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-19 00:05:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:13,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:14,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:05:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:14,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-19 00:05:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:14,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-19 00:05:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:14,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-19 00:05:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:14,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 00:05:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:14,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:14,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 00:05:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:14,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-19 00:05:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:14,113 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-19 00:05:14,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715777879] [2020-08-19 00:05:14,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:05:14,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 00:05:14,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074790979] [2020-08-19 00:05:14,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 00:05:14,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:05:14,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 00:05:14,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-19 00:05:14,141 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-19 00:05:16,189 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 00:05:17,706 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-19 00:05:18,920 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 00:05:20,173 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 00:05:26,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:05:26,024 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-19 00:05:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-19 00:05:26,027 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-19 00:05:26,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:05:26,044 INFO L225 Difference]: With dead ends: 573 [2020-08-19 00:05:26,044 INFO L226 Difference]: Without dead ends: 340 [2020-08-19 00:05:26,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-19 00:05:26,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-19 00:05:26,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-19 00:05:26,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-19 00:05:26,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-19 00:05:26,220 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-19 00:05:26,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:05:26,220 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-19 00:05:26,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 00:05:26,221 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-19 00:05:26,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-19 00:05:26,224 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:05:26,225 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:05:26,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 00:05:26,225 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:05:26,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:05:26,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-19 00:05:26,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:05:26,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766579218] [2020-08-19 00:05:26,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:05:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,475 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 00:05:27,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:05:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:05:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:05:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:05:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:05:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 00:05:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 00:05:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-19 00:05:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:05:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-19 00:05:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-19 00:05:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-19 00:05:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 00:05:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 00:05:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-19 00:05:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:27,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-19 00:05:27,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766579218] [2020-08-19 00:05:27,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:05:27,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-19 00:05:27,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985770152] [2020-08-19 00:05:27,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 00:05:27,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:05:27,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 00:05:27,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-19 00:05:27,859 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-19 00:05:29,569 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 00:05:31,103 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-19 00:05:32,338 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 00:05:33,537 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 00:05:38,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:05:38,138 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-19 00:05:38,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-19 00:05:38,139 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-19 00:05:38,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:05:38,145 INFO L225 Difference]: With dead ends: 509 [2020-08-19 00:05:38,145 INFO L226 Difference]: Without dead ends: 346 [2020-08-19 00:05:38,148 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 [2020-08-19 00:05:38,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-19 00:05:38,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-19 00:05:38,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-19 00:05:38,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-19 00:05:38,248 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-19 00:05:38,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:05:38,248 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-19 00:05:38,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 00:05:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-19 00:05:38,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-19 00:05:38,252 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:05:38,252 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:05:38,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 00:05:38,252 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:05:38,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:05:38,253 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-19 00:05:38,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:05:38,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947139749] [2020-08-19 00:05:38,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:05:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,490 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 00:05:39,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:05:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:05:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:05:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:05:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:05:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 00:05:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 00:05:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 00:05:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:05:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-19 00:05:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 00:05:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 00:05:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-19 00:05:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 00:05:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-19 00:05:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-19 00:05:39,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947139749] [2020-08-19 00:05:39,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:05:39,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-19 00:05:39,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226028967] [2020-08-19 00:05:39,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 00:05:39,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:05:39,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 00:05:39,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-19 00:05:39,866 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-19 00:05:41,930 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 00:05:43,515 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-19 00:05:44,645 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 00:05:45,792 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-19 00:05:50,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:05:50,112 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-19 00:05:50,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-19 00:05:50,112 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-19 00:05:50,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:05:50,116 INFO L225 Difference]: With dead ends: 509 [2020-08-19 00:05:50,116 INFO L226 Difference]: Without dead ends: 348 [2020-08-19 00:05:50,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-19 00:05:50,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-19 00:05:50,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-19 00:05:50,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-19 00:05:50,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-19 00:05:50,239 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-19 00:05:50,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:05:50,239 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-19 00:05:50,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 00:05:50,240 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-19 00:05:50,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-19 00:05:50,241 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:05:50,242 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:05:50,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 00:05:50,242 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:05:50,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:05:50,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-19 00:05:50,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:05:50,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341717373] [2020-08-19 00:05:50,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:05:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:51,964 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 00:05:51,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:05:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:05:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:05:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:05:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:05:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 00:05:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 00:05:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-19 00:05:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:05:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 00:05:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 00:05:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-19 00:05:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 00:05:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-19 00:05:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 00:05:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 00:05:52,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341717373] [2020-08-19 00:05:52,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:05:52,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 00:05:52,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875151661] [2020-08-19 00:05:52,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 00:05:52,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:05:52,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 00:05:52,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-19 00:05:52,231 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-19 00:05:54,354 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 00:05:58,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:05:58,468 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-19 00:05:58,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 00:05:58,469 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-19 00:05:58,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:05:58,472 INFO L225 Difference]: With dead ends: 463 [2020-08-19 00:05:58,473 INFO L226 Difference]: Without dead ends: 347 [2020-08-19 00:05:58,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-19 00:05:58,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-19 00:05:58,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-19 00:05:58,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-19 00:05:58,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-19 00:05:58,557 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-19 00:05:58,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:05:58,557 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-19 00:05:58,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 00:05:58,558 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-19 00:05:58,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-19 00:05:58,560 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:05:58,560 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:05:58,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 00:05:58,560 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:05:58,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:05:58,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-19 00:05:58,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:05:58,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001319894] [2020-08-19 00:05:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:05:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:59,871 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 00:05:59,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:05:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:59,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:05:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:59,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:05:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:59,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:05:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:59,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:05:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:59,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:59,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:59,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 00:05:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:59,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:59,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 00:05:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:05:59,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:05:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:00,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-19 00:06:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:00,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:06:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:00,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:06:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:00,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-19 00:06:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:00,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-19 00:06:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:00,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 00:06:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:00,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-19 00:06:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:00,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:06:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:00,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-19 00:06:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:00,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-19 00:06:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 00:06:00,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001319894] [2020-08-19 00:06:00,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:06:00,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 00:06:00,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979173558] [2020-08-19 00:06:00,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 00:06:00,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:06:00,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 00:06:00,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-19 00:06:00,108 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-19 00:06:02,339 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 00:06:03,465 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-19 00:06:07,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:06:07,424 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-19 00:06:07,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 00:06:07,425 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-19 00:06:07,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:06:07,428 INFO L225 Difference]: With dead ends: 495 [2020-08-19 00:06:07,428 INFO L226 Difference]: Without dead ends: 379 [2020-08-19 00:06:07,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-19 00:06:07,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-19 00:06:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-19 00:06:07,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-19 00:06:07,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-19 00:06:07,526 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-19 00:06:07,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:06:07,527 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-19 00:06:07,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 00:06:07,527 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-19 00:06:07,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-19 00:06:07,529 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:06:07,529 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:06:07,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 00:06:07,530 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:06:07,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:06:07,530 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-19 00:06:07,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:06:07,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248576263] [2020-08-19 00:06:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:06:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,779 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-19 00:06:08,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:06:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:06:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:06:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:06:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:06:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:06:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:06:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 00:06:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:06:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 00:06:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:06:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 00:06:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:06:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:06:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 00:06:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-19 00:06:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 00:06:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-19 00:06:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:06:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-19 00:06:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:08,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-19 00:06:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:06:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-19 00:06:09,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248576263] [2020-08-19 00:06:09,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:06:09,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 00:06:09,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802558242] [2020-08-19 00:06:09,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 00:06:09,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:06:09,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 00:06:09,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-19 00:06:09,027 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states.