/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=SHALLOWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 20:03:02,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 20:03:02,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 20:03:02,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 20:03:02,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 20:03:02,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 20:03:02,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 20:03:02,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 20:03:02,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 20:03:02,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 20:03:02,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 20:03:02,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 20:03:02,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 20:03:02,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 20:03:02,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 20:03:02,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 20:03:02,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 20:03:02,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 20:03:02,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 20:03:02,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 20:03:02,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 20:03:02,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 20:03:02,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 20:03:02,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 20:03:02,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 20:03:02,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 20:03:02,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 20:03:02,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 20:03:02,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 20:03:02,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 20:03:02,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 20:03:02,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 20:03:02,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 20:03:02,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 20:03:02,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 20:03:02,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 20:03:02,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 20:03:02,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 20:03:02,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 20:03:02,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 20:03:02,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 20:03:02,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 20:03:02,854 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 20:03:02,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 20:03:02,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 20:03:02,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 20:03:02,857 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 20:03:02,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 20:03:02,857 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 20:03:02,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 20:03:02,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 20:03:02,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 20:03:02,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 20:03:02,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 20:03:02,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 20:03:02,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 20:03:02,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 20:03:02,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 20:03:02,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 20:03:02,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 20:03:02,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 20:03:02,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 20:03:02,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 20:03:02,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:03:02,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 20:03:02,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 20:03:02,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 20:03:02,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 20:03:02,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 20:03:02,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 20:03:02,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 20:03:02,864 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=SHALLOWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; [2020-08-18 20:03:03,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 20:03:03,172 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 20:03:03,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 20:03:03,177 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 20:03:03,177 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 20:03:03,178 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 20:03:03,238 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c17b8bc07/4361e26bcfe249fd857ed8671f23ec10/FLAGf765c622b [2020-08-18 20:03:03,845 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 20:03:03,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 20:03:03,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c17b8bc07/4361e26bcfe249fd857ed8671f23ec10/FLAGf765c622b [2020-08-18 20:03:04,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c17b8bc07/4361e26bcfe249fd857ed8671f23ec10 [2020-08-18 20:03:04,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 20:03:04,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 20:03:04,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 20:03:04,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 20:03:04,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 20:03:04,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:03:04" (1/1) ... [2020-08-18 20:03:04,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0619bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:03:04, skipping insertion in model container [2020-08-18 20:03:04,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:03:04" (1/1) ... [2020-08-18 20:03:04,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 20:03:04,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 20:03:04,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:03:04,845 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 20:03:04,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:03:05,026 INFO L208 MainTranslator]: Completed translation [2020-08-18 20:03:05,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:03:05 WrapperNode [2020-08-18 20:03:05,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 20:03:05,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 20:03:05,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 20:03:05,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 20:03:05,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:03:05" (1/1) ... [2020-08-18 20:03:05,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:03:05" (1/1) ... [2020-08-18 20:03:05,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:03:05" (1/1) ... [2020-08-18 20:03:05,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:03:05" (1/1) ... [2020-08-18 20:03:05,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:03:05" (1/1) ... [2020-08-18 20:03:05,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:03:05" (1/1) ... [2020-08-18 20:03:05,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:03:05" (1/1) ... [2020-08-18 20:03:05,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 20:03:05,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 20:03:05,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 20:03:05,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 20:03:05,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:03:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:03:05,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 20:03:05,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 20:03:05,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 20:03:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-18 20:03:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-18 20:03:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-18 20:03:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-18 20:03:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-18 20:03:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 20:03:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 20:03:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-18 20:03:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 20:03:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 20:03:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 20:03:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 20:03:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 20:03:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-18 20:03:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-18 20:03:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-18 20:03:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-18 20:03:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-18 20:03:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-18 20:03:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-18 20:03:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-18 20:03:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-18 20:03:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-18 20:03:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-18 20:03:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-18 20:03:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-18 20:03:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-18 20:03:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-18 20:03:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-18 20:03:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-18 20:03:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-18 20:03:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-18 20:03:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-18 20:03:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-18 20:03:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-18 20:03:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-18 20:03:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-18 20:03:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-18 20:03:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-18 20:03:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-18 20:03:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-18 20:03:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-18 20:03:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-18 20:03:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-18 20:03:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-18 20:03:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-18 20:03:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 20:03:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 20:03:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-18 20:03:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 20:03:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 20:03:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 20:03:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 20:03:05,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 20:03:05,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 20:03:05,298 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-18 20:03:05,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-18 20:03:05,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-18 20:03:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-18 20:03:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-18 20:03:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-18 20:03:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-18 20:03:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-18 20:03:05,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-18 20:03:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-18 20:03:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-18 20:03:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-18 20:03:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-18 20:03:05,300 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-18 20:03:05,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-18 20:03:05,302 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-18 20:03:05,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-18 20:03:05,302 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-18 20:03:05,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-18 20:03:05,304 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-18 20:03:05,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-18 20:03:05,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-18 20:03:05,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-18 20:03:05,304 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-18 20:03:05,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-18 20:03:05,305 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-18 20:03:05,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-18 20:03:05,305 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-18 20:03:05,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-18 20:03:05,306 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-18 20:03:05,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-18 20:03:05,306 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-18 20:03:05,306 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-18 20:03:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 20:03:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 20:03:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 20:03:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-18 20:03:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-18 20:03:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-18 20:03:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 20:03:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 20:03:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 20:03:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-18 20:03:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-18 20:03:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-18 20:03:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-18 20:03:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-18 20:03:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-18 20:03:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-18 20:03:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-18 20:03:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-18 20:03:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-18 20:03:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 20:03:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 20:03:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 20:03:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-18 20:03:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 20:03:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 20:03:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-18 20:03:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-18 20:03:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-18 20:03:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-18 20:03:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-18 20:03:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-18 20:03:05,314 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-18 20:03:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-18 20:03:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-18 20:03:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-18 20:03:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-18 20:03:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-18 20:03:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-18 20:03:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-18 20:03:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-18 20:03:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-18 20:03:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-18 20:03:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-18 20:03:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-18 20:03:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-18 20:03:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-18 20:03:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-18 20:03:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-18 20:03:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-18 20:03:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-18 20:03:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-18 20:03:05,324 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-18 20:03:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-18 20:03:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-18 20:03:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-18 20:03:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-18 20:03:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-18 20:03:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 20:03:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 20:03:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-18 20:03:05,333 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-18 20:03:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 20:03:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 20:03:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 20:03:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 20:03:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 20:03:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 20:03:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 20:03:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 20:03:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 20:03:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 20:03:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 20:03:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 20:03:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 20:03:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 20:03:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 20:03:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 20:03:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-18 20:03:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-18 20:03:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-18 20:03:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-18 20:03:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-18 20:03:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-18 20:03:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-18 20:03:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-18 20:03:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-18 20:03:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-18 20:03:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-18 20:03:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-18 20:03:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-18 20:03:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-18 20:03:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-18 20:03:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-18 20:03:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-18 20:03:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-18 20:03:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-18 20:03:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-18 20:03:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-18 20:03:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-18 20:03:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-18 20:03:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-18 20:03:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-18 20:03:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-18 20:03:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 20:03:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 20:03:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 20:03:07,127 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 20:03:07,127 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 20:03:07,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:03:07 BoogieIcfgContainer [2020-08-18 20:03:07,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 20:03:07,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 20:03:07,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 20:03:07,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 20:03:07,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 08:03:04" (1/3) ... [2020-08-18 20:03:07,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab36d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:03:07, skipping insertion in model container [2020-08-18 20:03:07,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:03:05" (2/3) ... [2020-08-18 20:03:07,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab36d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:03:07, skipping insertion in model container [2020-08-18 20:03:07,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:03:07" (3/3) ... [2020-08-18 20:03:07,142 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-18 20:03:07,152 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 20:03:07,161 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 20:03:07,176 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 20:03:07,203 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 20:03:07,204 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 20:03:07,204 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 20:03:07,204 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 20:03:07,204 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 20:03:07,204 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 20:03:07,204 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 20:03:07,204 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 20:03:07,227 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-18 20:03:07,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-18 20:03:07,241 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:03:07,242 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:03:07,243 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:03:07,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:03:07,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-18 20:03:07,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:03:07,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805779108] [2020-08-18 20:03:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:03:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,305 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 20:03:09,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:03:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:03:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:03:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:03:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:03:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 20:03:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 20:03:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-18 20:03:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:03:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-18 20:03:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-18 20:03:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-18 20:03:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 20:03:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-18 20:03:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-18 20:03:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:09,783 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 20:03:09,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805779108] [2020-08-18 20:03:09,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:03:09,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-18 20:03:09,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583424916] [2020-08-18 20:03:09,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 20:03:09,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:03:09,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 20:03:09,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 20:03:09,812 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-18 20:03:11,839 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 20:03:13,370 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 20:03:14,609 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 20:03:15,845 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 20:03:21,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:03:21,792 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-18 20:03:21,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-18 20:03:21,794 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-18 20:03:21,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:03:21,812 INFO L225 Difference]: With dead ends: 573 [2020-08-18 20:03:21,813 INFO L226 Difference]: Without dead ends: 340 [2020-08-18 20:03:21,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-08-18 20:03:21,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-18 20:03:21,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-18 20:03:21,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-18 20:03:21,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-18 20:03:21,976 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-18 20:03:21,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:03:21,977 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-18 20:03:21,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 20:03:21,977 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-18 20:03:21,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-18 20:03:21,981 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:03:21,981 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:03:21,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 20:03:21,982 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:03:21,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:03:21,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-18 20:03:21,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:03:21,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052996904] [2020-08-18 20:03:21,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:03:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,212 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 20:03:23,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:03:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:03:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:03:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:03:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:03:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 20:03:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:03:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 20:03:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:03:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-18 20:03:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-18 20:03:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 20:03:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 20:03:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-18 20:03:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-18 20:03:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:23,543 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 20:03:23,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052996904] [2020-08-18 20:03:23,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:03:23,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 20:03:23,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811927577] [2020-08-18 20:03:23,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 20:03:23,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:03:23,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 20:03:23,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 20:03:23,547 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-18 20:03:25,167 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 20:03:26,725 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 20:03:27,902 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 20:03:29,131 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 20:03:33,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:03:33,693 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-18 20:03:33,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 20:03:33,693 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-18 20:03:33,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:03:33,702 INFO L225 Difference]: With dead ends: 509 [2020-08-18 20:03:33,702 INFO L226 Difference]: Without dead ends: 346 [2020-08-18 20:03:33,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 20:03:33,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-18 20:03:33,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-18 20:03:33,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 20:03:33,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-18 20:03:33,821 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-18 20:03:33,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:03:33,821 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-18 20:03:33,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 20:03:33,822 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-18 20:03:33,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-18 20:03:33,825 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:03:33,825 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:03:33,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 20:03:33,826 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:03:33,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:03:33,826 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-18 20:03:33,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:03:33,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006763330] [2020-08-18 20:03:33,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:03:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,076 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 20:03:35,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:03:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:03:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:03:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:03:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:03:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 20:03:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:03:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 20:03:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:03:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-18 20:03:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 20:03:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 20:03:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-18 20:03:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 20:03:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 20:03:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:35,452 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-08-18 20:03:35,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006763330] [2020-08-18 20:03:35,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:03:35,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 20:03:35,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050284839] [2020-08-18 20:03:35,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 20:03:35,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:03:35,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 20:03:35,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 20:03:35,456 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-18 20:03:37,344 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 20:03:38,924 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 20:03:40,088 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 20:03:41,221 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 20:03:45,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:03:45,484 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-18 20:03:45,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 20:03:45,486 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-18 20:03:45,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:03:45,489 INFO L225 Difference]: With dead ends: 509 [2020-08-18 20:03:45,489 INFO L226 Difference]: Without dead ends: 348 [2020-08-18 20:03:45,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 20:03:45,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-18 20:03:45,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-18 20:03:45,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 20:03:45,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-18 20:03:45,595 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-18 20:03:45,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:03:45,596 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-18 20:03:45,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 20:03:45,596 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-18 20:03:45,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-18 20:03:45,598 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:03:45,598 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:03:45,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 20:03:45,599 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:03:45,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:03:45,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-18 20:03:45,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:03:45,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580415632] [2020-08-18 20:03:45,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:03:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,744 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 20:03:46,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:03:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:03:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:03:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:03:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:03:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 20:03:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:03:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-18 20:03:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:03:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 20:03:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 20:03:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 20:03:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 20:03:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-18 20:03:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-18 20:03:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:46,960 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 20:03:46,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580415632] [2020-08-18 20:03:46,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:03:46,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 20:03:46,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706076031] [2020-08-18 20:03:46,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 20:03:46,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:03:46,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 20:03:46,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-18 20:03:46,963 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-18 20:03:49,504 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 20:03:53,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:03:53,529 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-18 20:03:53,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 20:03:53,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-18 20:03:53,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:03:53,532 INFO L225 Difference]: With dead ends: 463 [2020-08-18 20:03:53,532 INFO L226 Difference]: Without dead ends: 347 [2020-08-18 20:03:53,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-08-18 20:03:53,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-18 20:03:53,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-18 20:03:53,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-18 20:03:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-18 20:03:53,608 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-18 20:03:53,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:03:53,609 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-18 20:03:53,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 20:03:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-18 20:03:53,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-18 20:03:53,611 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:03:53,611 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:03:53,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 20:03:53,612 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:03:53,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:03:53,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-18 20:03:53,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:03:53,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723986631] [2020-08-18 20:03:53,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:03:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:54,865 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 20:03:54,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:03:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:54,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:03:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:54,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:03:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:54,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:03:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:54,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:03:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:54,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:54,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:54,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 20:03:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:54,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:54,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:03:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:54,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:55,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 20:03:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:55,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:55,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:03:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:55,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 20:03:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:55,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 20:03:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:55,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-18 20:03:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:55,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-18 20:03:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:55,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:03:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:55,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-18 20:03:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:55,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-18 20:03:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:03:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 20:03:55,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723986631] [2020-08-18 20:03:55,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:03:55,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 20:03:55,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923252070] [2020-08-18 20:03:55,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 20:03:55,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:03:55,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 20:03:55,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-18 20:03:55,162 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-18 20:03:57,468 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 20:03:58,660 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 20:04:02,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:04:02,627 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-18 20:04:02,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 20:04:02,627 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-18 20:04:02,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:04:02,630 INFO L225 Difference]: With dead ends: 495 [2020-08-18 20:04:02,631 INFO L226 Difference]: Without dead ends: 379 [2020-08-18 20:04:02,632 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 [2020-08-18 20:04:02,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-18 20:04:02,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-18 20:04:02,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-18 20:04:02,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-18 20:04:02,729 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-18 20:04:02,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:04:02,729 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-18 20:04:02,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 20:04:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-18 20:04:02,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-18 20:04:02,731 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:04:02,732 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:04:02,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 20:04:02,732 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:04:02,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:04:02,733 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-18 20:04:02,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:04:02,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788996642] [2020-08-18 20:04:02,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:04:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:03,949 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 20:04:03,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:04:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:03,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:04:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:03,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:04:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:03,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:04:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:04:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:04:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:04:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 20:04:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:04:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:04:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:04:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 20:04:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:04:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:04:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 20:04:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-18 20:04:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-18 20:04:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-18 20:04:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:04:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 20:04:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-18 20:04:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:04:04,241 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-08-18 20:04:04,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788996642] [2020-08-18 20:04:04,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:04:04,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 20:04:04,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138341890] [2020-08-18 20:04:04,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 20:04:04,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:04:04,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 20:04:04,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-18 20:04:04,245 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states.