/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 false -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-eb0fd7c [2020-09-21 10:00:04,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:00:04,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:00:04,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:00:04,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:00:04,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:00:04,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:00:04,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:00:04,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:00:04,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:00:04,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:00:04,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:00:04,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:00:04,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:00:04,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:00:04,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:00:04,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:00:04,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:00:04,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:00:04,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:00:04,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:00:04,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:00:04,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:00:04,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:00:04,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 10:00:04,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 10:00:04,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 10:00:04,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 10:00:04,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 10:00:04,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 10:00:04,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 10:00:04,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 10:00:04,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 10:00:04,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 10:00:04,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 10:00:04,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 10:00:04,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 10:00:04,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 10:00:04,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:00:04,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:00:04,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:00:04,973 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 [2020-09-21 10:00:05,020 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:00:05,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:00:05,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:00:05,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:00:05,023 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:00:05,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:00:05,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:00:05,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:00:05,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:00:05,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:00:05,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:00:05,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:00:05,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:00:05,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:00:05,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:00:05,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:00:05,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:00:05,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:00:05,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:00:05,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:00:05,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:00:05,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:00:05,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:00:05,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:00:05,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:00:05,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:00:05,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:00:05,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:00:05,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:00:05,028 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 -> false [2020-09-21 10:00:06,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:00:06,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:00:06,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:00:06,077 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:00:06,077 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:00:06,079 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-09-21 10:00:06,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0074e3f6c/1cecac2607f840b39f0c471fe1adb76b/FLAG7c4df0dea [2020-09-21 10:00:06,910 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:00:06,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/email_spec11_product03.cil.c [2020-09-21 10:00:06,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0074e3f6c/1cecac2607f840b39f0c471fe1adb76b/FLAG7c4df0dea [2020-09-21 10:00:07,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0074e3f6c/1cecac2607f840b39f0c471fe1adb76b [2020-09-21 10:00:07,145 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:00:07,197 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:00:07,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:00:07,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:00:07,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:00:07,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:00:07" (1/1) ... [2020-09-21 10:00:07,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d3bbc71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:00:07, skipping insertion in model container [2020-09-21 10:00:07,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:00:07" (1/1) ... [2020-09-21 10:00:07,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:00:07,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:00:08,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:00:08,234 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:00:08,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:00:08,421 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:00:08,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:00:08 WrapperNode [2020-09-21 10:00:08,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:00:08,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:00:08,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:00:08,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:00:08,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:00:08" (1/1) ... [2020-09-21 10:00:08,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:00:08" (1/1) ... [2020-09-21 10:00:08,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:00:08" (1/1) ... [2020-09-21 10:00:08,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:00:08" (1/1) ... [2020-09-21 10:00:08,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:00:08" (1/1) ... [2020-09-21 10:00:08,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:00:08" (1/1) ... [2020-09-21 10:00:08,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:00:08" (1/1) ... [2020-09-21 10:00:08,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:00:08,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:00:08,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:00:08,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:00:08,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:00:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:00:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:00:08,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:00:08,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 10:00:08,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2020-09-21 10:00:08,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2020-09-21 10:00:08,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2020-09-21 10:00:08,667 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2020-09-21 10:00:08,667 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2020-09-21 10:00:08,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 10:00:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:00:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2020-09-21 10:00:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 10:00:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 10:00:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 10:00:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 10:00:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 10:00:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2020-09-21 10:00:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2020-09-21 10:00:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2020-09-21 10:00:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2020-09-21 10:00:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2020-09-21 10:00:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2020-09-21 10:00:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2020-09-21 10:00:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2020-09-21 10:00:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2020-09-21 10:00:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2020-09-21 10:00:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2020-09-21 10:00:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2020-09-21 10:00:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2020-09-21 10:00:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2020-09-21 10:00:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2020-09-21 10:00:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2020-09-21 10:00:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2020-09-21 10:00:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2020-09-21 10:00:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2020-09-21 10:00:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2020-09-21 10:00:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2020-09-21 10:00:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2020-09-21 10:00:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2020-09-21 10:00:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2020-09-21 10:00:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2020-09-21 10:00:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2020-09-21 10:00:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2020-09-21 10:00:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2020-09-21 10:00:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2020-09-21 10:00:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2020-09-21 10:00:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2020-09-21 10:00:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2020-09-21 10:00:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2020-09-21 10:00:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-09-21 10:00:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 10:00:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2020-09-21 10:00:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 10:00:08,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 10:00:08,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 10:00:08,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 10:00:08,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 10:00:08,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 10:00:08,677 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2020-09-21 10:00:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2020-09-21 10:00:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2020-09-21 10:00:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2020-09-21 10:00:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2020-09-21 10:00:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2020-09-21 10:00:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2020-09-21 10:00:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2020-09-21 10:00:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2020-09-21 10:00:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2020-09-21 10:00:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2020-09-21 10:00:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2020-09-21 10:00:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2020-09-21 10:00:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2020-09-21 10:00:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2020-09-21 10:00:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2020-09-21 10:00:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2020-09-21 10:00:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2020-09-21 10:00:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2020-09-21 10:00:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2020-09-21 10:00:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2020-09-21 10:00:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2020-09-21 10:00:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2020-09-21 10:00:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2020-09-21 10:00:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2020-09-21 10:00:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2020-09-21 10:00:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2020-09-21 10:00:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2020-09-21 10:00:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2020-09-21 10:00:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2020-09-21 10:00:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2020-09-21 10:00:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2020-09-21 10:00:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2020-09-21 10:00:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:00:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:00:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 10:00:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-21 10:00:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2020-09-21 10:00:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2020-09-21 10:00:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 10:00:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 10:00:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 10:00:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2020-09-21 10:00:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2020-09-21 10:00:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2020-09-21 10:00:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2020-09-21 10:00:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2020-09-21 10:00:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2020-09-21 10:00:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2020-09-21 10:00:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2020-09-21 10:00:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2020-09-21 10:00:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2020-09-21 10:00:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 10:00:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 10:00:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:00:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2020-09-21 10:00:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 10:00:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 10:00:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2020-09-21 10:00:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2020-09-21 10:00:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2020-09-21 10:00:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2020-09-21 10:00:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2020-09-21 10:00:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2020-09-21 10:00:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2020-09-21 10:00:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2020-09-21 10:00:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2020-09-21 10:00:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2020-09-21 10:00:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2020-09-21 10:00:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2020-09-21 10:00:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2020-09-21 10:00:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2020-09-21 10:00:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2020-09-21 10:00:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2020-09-21 10:00:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2020-09-21 10:00:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2020-09-21 10:00:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2020-09-21 10:00:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2020-09-21 10:00:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2020-09-21 10:00:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2020-09-21 10:00:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2020-09-21 10:00:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2020-09-21 10:00:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2020-09-21 10:00:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2020-09-21 10:00:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2020-09-21 10:00:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2020-09-21 10:00:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2020-09-21 10:00:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2020-09-21 10:00:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2020-09-21 10:00:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2020-09-21 10:00:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2020-09-21 10:00:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 10:00:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2020-09-21 10:00:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2020-09-21 10:00:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 10:00:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 10:00:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 10:00:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 10:00:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 10:00:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 10:00:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 10:00:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 10:00:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 10:00:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 10:00:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 10:00:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 10:00:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 10:00:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 10:00:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 10:00:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 10:00:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2020-09-21 10:00:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2020-09-21 10:00:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2020-09-21 10:00:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2020-09-21 10:00:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2020-09-21 10:00:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2020-09-21 10:00:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2020-09-21 10:00:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2020-09-21 10:00:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2020-09-21 10:00:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2020-09-21 10:00:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2020-09-21 10:00:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2020-09-21 10:00:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2020-09-21 10:00:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2020-09-21 10:00:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2020-09-21 10:00:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2020-09-21 10:00:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2020-09-21 10:00:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2020-09-21 10:00:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2020-09-21 10:00:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2020-09-21 10:00:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2020-09-21 10:00:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2020-09-21 10:00:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2020-09-21 10:00:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2020-09-21 10:00:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2020-09-21 10:00:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2020-09-21 10:00:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:00:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 10:00:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:00:10,550 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:00:10,550 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-21 10:00:10,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:00:10 BoogieIcfgContainer [2020-09-21 10:00:10,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:00:10,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:00:10,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:00:10,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:00:10,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:00:07" (1/3) ... [2020-09-21 10:00:10,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b7634a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:00:10, skipping insertion in model container [2020-09-21 10:00:10,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:00:08" (2/3) ... [2020-09-21 10:00:10,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b7634a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:00:10, skipping insertion in model container [2020-09-21 10:00:10,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:00:10" (3/3) ... [2020-09-21 10:00:10,569 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product03.cil.c [2020-09-21 10:00:10,582 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:00:10,593 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:00:10,616 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:00:10,651 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:00:10,651 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:00:10,651 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:00:10,652 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:00:10,652 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:00:10,652 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:00:10,652 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:00:10,652 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:00:10,682 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2020-09-21 10:00:10,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-21 10:00:10,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:00:10,701 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] [2020-09-21 10:00:10,702 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:00:10,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:00:10,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1055446932, now seen corresponding path program 1 times [2020-09-21 10:00:10,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:00:10,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192244573] [2020-09-21 10:00:10,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:00:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,023 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 499 [2020-09-21 10:00:13,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:00:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:00:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:00:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:00:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:00:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 10:00:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 10:00:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 10:00:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:00:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 10:00:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-21 10:00:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-21 10:00:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-09-21 10:00:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-21 10:00:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-21 10:00:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-21 10:00:13,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192244573] [2020-09-21 10:00:13,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:00:13,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 10:00:13,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195357791] [2020-09-21 10:00:13,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 10:00:13,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:00:13,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 10:00:13,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-21 10:00:13,650 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 13 states. [2020-09-21 10:00:16,037 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 502 [2020-09-21 10:00:17,921 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 501 [2020-09-21 10:00:19,511 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 504 [2020-09-21 10:00:21,166 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 504 [2020-09-21 10:00:27,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:00:27,711 INFO L93 Difference]: Finished difference Result 573 states and 804 transitions. [2020-09-21 10:00:27,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-21 10:00:27,713 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-09-21 10:00:27,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:00:27,732 INFO L225 Difference]: With dead ends: 573 [2020-09-21 10:00:27,733 INFO L226 Difference]: Without dead ends: 340 [2020-09-21 10:00:27,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=274, Invalid=916, Unknown=0, NotChecked=0, Total=1190 [2020-09-21 10:00:27,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-21 10:00:27,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 208. [2020-09-21 10:00:27,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-09-21 10:00:27,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 258 transitions. [2020-09-21 10:00:27,891 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 258 transitions. Word has length 125 [2020-09-21 10:00:27,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:00:27,892 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 258 transitions. [2020-09-21 10:00:27,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 10:00:27,892 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 258 transitions. [2020-09-21 10:00:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 10:00:27,896 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:00:27,896 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] [2020-09-21 10:00:27,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:00:27,897 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:00:27,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:00:27,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1286343955, now seen corresponding path program 1 times [2020-09-21 10:00:27,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:00:27,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148433628] [2020-09-21 10:00:27,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:00:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,482 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 499 [2020-09-21 10:00:29,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:00:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:00:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:00:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:00:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:00:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 10:00:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 10:00:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 10:00:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:00:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-21 10:00:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 10:00:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-21 10:00:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 10:00:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-09-21 10:00:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-21 10:00:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-21 10:00:29,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148433628] [2020-09-21 10:00:29,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:00:29,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-21 10:00:29,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798933516] [2020-09-21 10:00:29,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 10:00:29,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:00:29,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 10:00:29,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-21 10:00:29,979 INFO L87 Difference]: Start difference. First operand 208 states and 258 transitions. Second operand 13 states. [2020-09-21 10:00:32,013 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 502 [2020-09-21 10:00:33,986 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 501 [2020-09-21 10:00:35,533 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 504 [2020-09-21 10:00:37,069 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 504 [2020-09-21 10:00:41,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:00:41,984 INFO L93 Difference]: Finished difference Result 509 states and 668 transitions. [2020-09-21 10:00:41,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 10:00:41,985 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-09-21 10:00:41,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:00:41,990 INFO L225 Difference]: With dead ends: 509 [2020-09-21 10:00:41,991 INFO L226 Difference]: Without dead ends: 346 [2020-09-21 10:00:41,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-09-21 10:00:41,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-09-21 10:00:42,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 212. [2020-09-21 10:00:42,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-21 10:00:42,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2020-09-21 10:00:42,101 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 127 [2020-09-21 10:00:42,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:00:42,102 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2020-09-21 10:00:42,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 10:00:42,103 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2020-09-21 10:00:42,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-21 10:00:42,105 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:00:42,106 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] [2020-09-21 10:00:42,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:00:42,106 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:00:42,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:00:42,107 INFO L82 PathProgramCache]: Analyzing trace with hash -919207694, now seen corresponding path program 2 times [2020-09-21 10:00:42,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:00:42,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596649029] [2020-09-21 10:00:42,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:00:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,635 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 499 [2020-09-21 10:00:43,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:00:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:00:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:00:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:00:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:00:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 10:00:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 10:00:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 10:00:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:43,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:44,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:00:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:44,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-21 10:00:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:44,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-21 10:00:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:44,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 10:00:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:44,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-21 10:00:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:44,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:44,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-21 10:00:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:44,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-21 10:00:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:44,091 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-21 10:00:44,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596649029] [2020-09-21 10:00:44,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:00:44,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-21 10:00:44,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587262336] [2020-09-21 10:00:44,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 10:00:44,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:00:44,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 10:00:44,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-09-21 10:00:44,095 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand 13 states. [2020-09-21 10:00:46,442 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 502 [2020-09-21 10:00:48,434 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 501 [2020-09-21 10:00:49,931 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 504 [2020-09-21 10:00:51,517 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 504 [2020-09-21 10:00:56,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:00:56,745 INFO L93 Difference]: Finished difference Result 509 states and 667 transitions. [2020-09-21 10:00:56,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 10:00:56,746 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2020-09-21 10:00:56,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:00:56,753 INFO L225 Difference]: With dead ends: 509 [2020-09-21 10:00:56,753 INFO L226 Difference]: Without dead ends: 348 [2020-09-21 10:00:56,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2020-09-21 10:00:56,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-21 10:00:56,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 212. [2020-09-21 10:00:56,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-21 10:00:56,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 261 transitions. [2020-09-21 10:00:56,860 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 261 transitions. Word has length 128 [2020-09-21 10:00:56,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:00:56,861 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 261 transitions. [2020-09-21 10:00:56,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 10:00:56,861 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 261 transitions. [2020-09-21 10:00:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-21 10:00:56,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:00:56,864 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] [2020-09-21 10:00:56,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:00:56,864 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:00:56,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:00:56,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1494009384, now seen corresponding path program 1 times [2020-09-21 10:00:56,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:00:56,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919136846] [2020-09-21 10:00:56,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:00:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,777 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 499 [2020-09-21 10:00:58,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:00:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:00:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:00:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:00:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:00:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 10:00:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 10:00:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 10:00:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:00:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 10:00:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:58,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 10:00:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:59,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 10:00:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:59,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-21 10:00:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:59,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:00:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:59,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-21 10:00:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:59,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-21 10:00:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:00:59,063 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-21 10:00:59,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919136846] [2020-09-21 10:00:59,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:00:59,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 10:00:59,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914046476] [2020-09-21 10:00:59,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 10:00:59,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:00:59,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 10:00:59,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-21 10:00:59,068 INFO L87 Difference]: Start difference. First operand 212 states and 261 transitions. Second operand 9 states. [2020-09-21 10:01:01,744 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 502 [2020-09-21 10:01:06,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:01:06,347 INFO L93 Difference]: Finished difference Result 463 states and 594 transitions. [2020-09-21 10:01:06,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 10:01:06,348 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2020-09-21 10:01:06,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:01:06,351 INFO L225 Difference]: With dead ends: 463 [2020-09-21 10:01:06,351 INFO L226 Difference]: Without dead ends: 347 [2020-09-21 10:01:06,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2020-09-21 10:01:06,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-09-21 10:01:06,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 214. [2020-09-21 10:01:06,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-21 10:01:06,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 263 transitions. [2020-09-21 10:01:06,435 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 263 transitions. Word has length 129 [2020-09-21 10:01:06,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:01:06,436 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 263 transitions. [2020-09-21 10:01:06,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 10:01:06,436 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 263 transitions. [2020-09-21 10:01:06,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-09-21 10:01:06,438 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:01:06,438 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] [2020-09-21 10:01:06,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 10:01:06,439 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:01:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:01:06,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1709287427, now seen corresponding path program 1 times [2020-09-21 10:01:06,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:01:06,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278820205] [2020-09-21 10:01:06,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:01:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat