/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=HIGHLEXORDER -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 19:14:44,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 19:14:44,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 19:14:44,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 19:14:44,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 19:14:44,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 19:14:44,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 19:14:44,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 19:14:44,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 19:14:44,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 19:14:44,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 19:14:44,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 19:14:44,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 19:14:44,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 19:14:44,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 19:14:44,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 19:14:44,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 19:14:44,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 19:14:44,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 19:14:44,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 19:14:44,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 19:14:44,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 19:14:44,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 19:14:44,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 19:14:44,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 19:14:44,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 19:14:44,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 19:14:44,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 19:14:44,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 19:14:44,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 19:14:44,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 19:14:44,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 19:14:44,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 19:14:44,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 19:14:44,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 19:14:44,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 19:14:44,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 19:14:44,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 19:14:44,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 19:14:44,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 19:14:44,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 19:14:44,750 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 19:14:44,807 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 19:14:44,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 19:14:44,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 19:14:44,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 19:14:44,809 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 19:14:44,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 19:14:44,813 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 19:14:44,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 19:14:44,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 19:14:44,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 19:14:44,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 19:14:44,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 19:14:44,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 19:14:44,814 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 19:14:44,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 19:14:44,814 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 19:14:44,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 19:14:44,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 19:14:44,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 19:14:44,817 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 19:14:44,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 19:14:44,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 19:14:44,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 19:14:44,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 19:14:44,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 19:14:44,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 19:14:44,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 19:14:44,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 19:14:44,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 19:14:44,819 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=HIGHLEXORDER; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=HIGHLEXORDER; [2020-08-18 19:14:45,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 19:14:45,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 19:14:45,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 19:14:45,168 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 19:14:45,169 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 19:14:45,170 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 19:14:45,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28466ceee/e367e60e81ff4b2ca1b59869bdb51c1c/FLAGebac06e8f [2020-08-18 19:14:45,855 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 19:14:45,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-08-18 19:14:45,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28466ceee/e367e60e81ff4b2ca1b59869bdb51c1c/FLAGebac06e8f [2020-08-18 19:14:46,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28466ceee/e367e60e81ff4b2ca1b59869bdb51c1c [2020-08-18 19:14:46,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 19:14:46,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 19:14:46,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 19:14:46,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 19:14:46,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 19:14:46,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:14:46" (1/1) ... [2020-08-18 19:14:46,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:14:46, skipping insertion in model container [2020-08-18 19:14:46,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:14:46" (1/1) ... [2020-08-18 19:14:46,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 19:14:46,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 19:14:46,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:14:46,854 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 19:14:47,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:14:47,106 INFO L208 MainTranslator]: Completed translation [2020-08-18 19:14:47,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:14:47 WrapperNode [2020-08-18 19:14:47,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 19:14:47,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 19:14:47,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 19:14:47,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 19:14:47,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:14:47" (1/1) ... [2020-08-18 19:14:47,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:14:47" (1/1) ... [2020-08-18 19:14:47,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:14:47" (1/1) ... [2020-08-18 19:14:47,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:14:47" (1/1) ... [2020-08-18 19:14:47,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:14:47" (1/1) ... [2020-08-18 19:14:47,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:14:47" (1/1) ... [2020-08-18 19:14:47,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:14:47" (1/1) ... [2020-08-18 19:14:47,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 19:14:47,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 19:14:47,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 19:14:47,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 19:14:47,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:14:47" (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 19:14:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 19:14:47,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 19:14:47,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 19:14:47,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-08-18 19:14:47,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-08-18 19:14:47,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-08-18 19:14:47,368 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-08-18 19:14:47,368 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-08-18 19:14:47,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 19:14:47,369 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 19:14:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-08-18 19:14:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 19:14:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 19:14:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 19:14:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 19:14:47,371 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 19:14:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-08-18 19:14:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-08-18 19:14:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-08-18 19:14:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-08-18 19:14:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-08-18 19:14:47,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-08-18 19:14:47,373 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-08-18 19:14:47,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-08-18 19:14:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-08-18 19:14:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-08-18 19:14:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-08-18 19:14:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-08-18 19:14:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-08-18 19:14:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-08-18 19:14:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-08-18 19:14:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-08-18 19:14:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-08-18 19:14:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-08-18 19:14:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-08-18 19:14:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-08-18 19:14:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-08-18 19:14:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-08-18 19:14:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-08-18 19:14:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-08-18 19:14:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-08-18 19:14:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-08-18 19:14:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-08-18 19:14:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-08-18 19:14:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-08-18 19:14:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-08-18 19:14:47,378 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-08-18 19:14:47,378 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-08-18 19:14:47,379 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-08-18 19:14:47,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 19:14:47,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 19:14:47,379 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-08-18 19:14:47,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 19:14:47,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 19:14:47,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 19:14:47,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 19:14:47,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 19:14:47,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 19:14:47,381 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-08-18 19:14:47,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-08-18 19:14:47,381 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-08-18 19:14:47,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-08-18 19:14:47,381 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-08-18 19:14:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-08-18 19:14:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-08-18 19:14:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-08-18 19:14:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-08-18 19:14:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-08-18 19:14:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-08-18 19:14:47,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-08-18 19:14:47,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-08-18 19:14:47,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-08-18 19:14:47,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-08-18 19:14:47,384 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-08-18 19:14:47,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-08-18 19:14:47,385 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-08-18 19:14:47,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-08-18 19:14:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-08-18 19:14:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-08-18 19:14:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-08-18 19:14:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-08-18 19:14:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-08-18 19:14:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-08-18 19:14:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-08-18 19:14:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-08-18 19:14:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-08-18 19:14:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-08-18 19:14:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-08-18 19:14:47,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-08-18 19:14:47,388 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-08-18 19:14:47,388 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-08-18 19:14:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 19:14:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 19:14:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 19:14:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-18 19:14:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-08-18 19:14:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-08-18 19:14:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 19:14:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 19:14:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 19:14:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-08-18 19:14:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-08-18 19:14:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-08-18 19:14:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-08-18 19:14:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-08-18 19:14:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-08-18 19:14:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-08-18 19:14:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-08-18 19:14:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-08-18 19:14:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-08-18 19:14:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 19:14:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 19:14:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 19:14:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-08-18 19:14:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 19:14:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 19:14:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-08-18 19:14:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-08-18 19:14:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-08-18 19:14:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-08-18 19:14:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-08-18 19:14:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-08-18 19:14:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-08-18 19:14:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-08-18 19:14:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-08-18 19:14:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-08-18 19:14:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-08-18 19:14:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-08-18 19:14:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-08-18 19:14:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-08-18 19:14:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-08-18 19:14:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-08-18 19:14:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-08-18 19:14:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-08-18 19:14:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-08-18 19:14:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-08-18 19:14:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-08-18 19:14:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-08-18 19:14:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-08-18 19:14:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-08-18 19:14:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-08-18 19:14:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-08-18 19:14:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-08-18 19:14:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-08-18 19:14:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-08-18 19:14:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-08-18 19:14:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-08-18 19:14:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-08-18 19:14:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-08-18 19:14:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 19:14:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-08-18 19:14:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-08-18 19:14:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 19:14:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 19:14:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 19:14:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 19:14:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 19:14:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 19:14:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 19:14:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 19:14:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 19:14:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 19:14:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 19:14:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 19:14:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 19:14:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 19:14:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 19:14:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 19:14:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-08-18 19:14:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-08-18 19:14:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-08-18 19:14:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-08-18 19:14:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-08-18 19:14:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-08-18 19:14:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-08-18 19:14:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-08-18 19:14:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-08-18 19:14:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-08-18 19:14:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-08-18 19:14:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-08-18 19:14:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-08-18 19:14:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-08-18 19:14:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-08-18 19:14:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-08-18 19:14:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-08-18 19:14:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-08-18 19:14:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-08-18 19:14:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-08-18 19:14:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-08-18 19:14:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-08-18 19:14:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-08-18 19:14:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-08-18 19:14:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-08-18 19:14:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-08-18 19:14:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 19:14:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 19:14:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 19:14:49,215 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 19:14:49,215 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 19:14:49,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:14:49 BoogieIcfgContainer [2020-08-18 19:14:49,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 19:14:49,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 19:14:49,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 19:14:49,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 19:14:49,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 07:14:46" (1/3) ... [2020-08-18 19:14:49,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cafb1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:14:49, skipping insertion in model container [2020-08-18 19:14:49,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:14:47" (2/3) ... [2020-08-18 19:14:49,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cafb1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:14:49, skipping insertion in model container [2020-08-18 19:14:49,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:14:49" (3/3) ... [2020-08-18 19:14:49,232 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-08-18 19:14:49,245 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 19:14:49,255 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 19:14:49,271 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 19:14:49,300 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 19:14:49,300 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 19:14:49,300 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 19:14:49,300 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 19:14:49,300 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 19:14:49,301 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 19:14:49,301 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 19:14:49,301 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 19:14:49,326 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-08-18 19:14:49,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-08-18 19:14:49,340 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:14:49,342 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 19:14:49,343 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:14:49,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:14:49,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-08-18 19:14:49,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:14:49,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629574839] [2020-08-18 19:14:49,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:14:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,373 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 19:14:51,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:14:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:14:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:14:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:14:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:14:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:14:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:14:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 19:14:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:14:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-18 19:14:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:14:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-18 19:14:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:14:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:14:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-18 19:14:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-18 19:14:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-18 19:14:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 19:14:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:14:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-18 19:14:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-18 19:14:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:14:51,811 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 19:14:51,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629574839] [2020-08-18 19:14:51,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 19:14:51,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-18 19:14:51,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025854135] [2020-08-18 19:14:51,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 19:14:51,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:14:51,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 19:14:51,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 19:14:51,839 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-08-18 19:14:54,009 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 19:14:55,526 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 19:14:56,772 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 19:14:58,030 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 19:15:04,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:15:04,103 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-08-18 19:15:04,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-18 19:15:04,106 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-08-18 19:15:04,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:15:04,123 INFO L225 Difference]: With dead ends: 573 [2020-08-18 19:15:04,124 INFO L226 Difference]: Without dead ends: 340 [2020-08-18 19:15:04,134 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 19:15:04,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-08-18 19:15:04,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-08-18 19:15:04,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-08-18 19:15:04,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-08-18 19:15:04,289 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-08-18 19:15:04,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:15:04,290 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-08-18 19:15:04,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 19:15:04,290 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-08-18 19:15:04,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-08-18 19:15:04,294 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:15:04,294 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 19:15:04,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 19:15:04,295 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:15:04,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:15:04,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-08-18 19:15:04,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:15:04,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668017766] [2020-08-18 19:15:04,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:15:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,632 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 19:15:05,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:15:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:15:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:15:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:15:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:15:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 19:15:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 19:15:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 19:15:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:15:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-18 19:15:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-18 19:15:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 19:15:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 19:15:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-18 19:15:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:05,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-08-18 19:15:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:06,041 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 19:15:06,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668017766] [2020-08-18 19:15:06,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:15:06,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 19:15:06,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060574637] [2020-08-18 19:15:06,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 19:15:06,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:15:06,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 19:15:06,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 19:15:06,047 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-08-18 19:15:07,914 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 19:15:09,537 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 19:15:10,730 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 19:15:11,950 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 19:15:16,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:15:16,610 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-08-18 19:15:16,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 19:15:16,611 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-08-18 19:15:16,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:15:16,618 INFO L225 Difference]: With dead ends: 509 [2020-08-18 19:15:16,618 INFO L226 Difference]: Without dead ends: 346 [2020-08-18 19:15:16,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 19:15:16,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-08-18 19:15:16,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-08-18 19:15:16,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 19:15:16,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-08-18 19:15:16,736 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-08-18 19:15:16,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:15:16,737 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-08-18 19:15:16,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 19:15:16,737 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-08-18 19:15:16,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-18 19:15:16,740 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:15:16,740 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 19:15:16,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 19:15:16,741 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:15:16,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:15:16,741 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-08-18 19:15:16,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:15:16,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922828019] [2020-08-18 19:15:16,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:15:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:17,929 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 19:15:17,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:15:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:17,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:15:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:17,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:15:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:17,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:15:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:15:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 19:15:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 19:15:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 19:15:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:15:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-18 19:15:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 19:15:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 19:15:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-18 19:15:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 19:15:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 19:15:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:18,365 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 19:15:18,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922828019] [2020-08-18 19:15:18,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:15:18,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-18 19:15:18,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831208860] [2020-08-18 19:15:18,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 19:15:18,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:15:18,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 19:15:18,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-08-18 19:15:18,371 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-08-18 19:15:20,213 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 19:15:21,819 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 501 [2020-08-18 19:15:22,947 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 19:15:24,154 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 504 [2020-08-18 19:15:28,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:15:28,432 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-08-18 19:15:28,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-18 19:15:28,432 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-08-18 19:15:28,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:15:28,437 INFO L225 Difference]: With dead ends: 509 [2020-08-18 19:15:28,437 INFO L226 Difference]: Without dead ends: 348 [2020-08-18 19:15:28,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-08-18 19:15:28,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-18 19:15:28,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-08-18 19:15:28,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-18 19:15:28,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-08-18 19:15:28,546 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-08-18 19:15:28,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:15:28,546 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-08-18 19:15:28,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 19:15:28,547 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-08-18 19:15:28,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-08-18 19:15:28,549 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:15:28,549 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 19:15:28,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 19:15:28,549 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:15:28,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:15:28,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-08-18 19:15:28,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:15:28,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213133705] [2020-08-18 19:15:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:15:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,758 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 19:15:29,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:15:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:15:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:15:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:15:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:15:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 19:15:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 19:15:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-18 19:15:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:15:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 19:15:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 19:15:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 19:15:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 19:15:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-18 19:15:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-18 19:15:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:29,965 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 19:15:29,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213133705] [2020-08-18 19:15:29,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:15:29,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 19:15:29,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096586161] [2020-08-18 19:15:29,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 19:15:29,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:15:29,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 19:15:29,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-18 19:15:29,968 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-08-18 19:15:32,079 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 19:15:36,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:15:36,076 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-08-18 19:15:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 19:15:36,077 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-08-18 19:15:36,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:15:36,080 INFO L225 Difference]: With dead ends: 463 [2020-08-18 19:15:36,081 INFO L226 Difference]: Without dead ends: 347 [2020-08-18 19:15:36,082 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 19:15:36,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-08-18 19:15:36,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-08-18 19:15:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-18 19:15:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-08-18 19:15:36,162 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-08-18 19:15:36,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:15:36,163 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-08-18 19:15:36,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 19:15:36,163 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-08-18 19:15:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-18 19:15:36,165 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:15:36,165 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 19:15:36,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 19:15:36,166 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:15:36,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:15:36,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-08-18 19:15:36,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:15:36,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375061482] [2020-08-18 19:15:36,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:15:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,412 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 19:15:37,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:15:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:15:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:15:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:15:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:15:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 19:15:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 19:15:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 19:15:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:15:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 19:15:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 19:15:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-18 19:15:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-18 19:15:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-18 19:15:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-18 19:15:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:37,647 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 19:15:37,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375061482] [2020-08-18 19:15:37,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 19:15:37,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 19:15:37,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714305764] [2020-08-18 19:15:37,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 19:15:37,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:15:37,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 19:15:37,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-18 19:15:37,651 INFO L87 Difference]: Start difference. First operand 214 states and 263 transitions. Second operand 10 states. [2020-08-18 19:15:40,341 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 19:15:41,497 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 502 [2020-08-18 19:15:45,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:15:45,457 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-08-18 19:15:45,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 19:15:45,458 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-08-18 19:15:45,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:15:45,461 INFO L225 Difference]: With dead ends: 495 [2020-08-18 19:15:45,462 INFO L226 Difference]: Without dead ends: 379 [2020-08-18 19:15:45,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-08-18 19:15:45,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-08-18 19:15:45,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 241. [2020-08-18 19:15:45,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-18 19:15:45,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 313 transitions. [2020-08-18 19:15:45,560 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 313 transitions. Word has length 134 [2020-08-18 19:15:45,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:15:45,560 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 313 transitions. [2020-08-18 19:15:45,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 19:15:45,561 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 313 transitions. [2020-08-18 19:15:45,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-08-18 19:15:45,563 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:15:45,563 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 19:15:45,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 19:15:45,563 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:15:45,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:15:45,564 INFO L82 PathProgramCache]: Analyzing trace with hash 903324488, now seen corresponding path program 2 times [2020-08-18 19:15:45,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:15:45,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096387859] [2020-08-18 19:15:45,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:15:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:46,869 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 499 [2020-08-18 19:15:46,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:15:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:46,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:15:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:46,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:15:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:46,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:15:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:46,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:15:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:46,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:46,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:46,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 19:15:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:46,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:46,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 19:15:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:46,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:47,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 19:15:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:47,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:47,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:15:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:47,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 19:15:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:47,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-08-18 19:15:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:47,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-18 19:15:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:47,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-08-18 19:15:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:47,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 19:15:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:47,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-18 19:15:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:47,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-18 19:15:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:15:47,200 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 19:15:47,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096387859] [2020-08-18 19:15:47,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:15:47,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 19:15:47,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064660397] [2020-08-18 19:15:47,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 19:15:47,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:15:47,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 19:15:47,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-08-18 19:15:47,206 INFO L87 Difference]: Start difference. First operand 241 states and 313 transitions. Second operand 12 states.