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 -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:12,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:12,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:12,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:12,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:12,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:12,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:12,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:12,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:12,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:12,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:12,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:12,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:12,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:12,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:12,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:12,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:12,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:12,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:12,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:12,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:12,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:12,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:12,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:12,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:12,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:12,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:12,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:12,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:12,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:12,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:12,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:12,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:12,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:12,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:12,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:12,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:12,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:12,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:12,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:12,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:12,295 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:29:12,311 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:12,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:12,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:12,312 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:12,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:12,312 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:12,313 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:12,313 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:12,313 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:12,313 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:12,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:12,314 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:12,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:12,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:12,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:12,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:12,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:12,315 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:12,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:12,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:12,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:12,316 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:12,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:12,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:12,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:12,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:12,317 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:12,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:12,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:12,318 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:12,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:12,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:12,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:12,364 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:12,365 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:12,366 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product19.cil.c [2019-09-20 13:29:12,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f458fc101/6d3222b0299e45b2b943f0bdcf860bba/FLAG06a3bf5f1 [2019-09-20 13:29:13,021 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:13,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product19.cil.c [2019-09-20 13:29:13,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f458fc101/6d3222b0299e45b2b943f0bdcf860bba/FLAG06a3bf5f1 [2019-09-20 13:29:13,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f458fc101/6d3222b0299e45b2b943f0bdcf860bba [2019-09-20 13:29:13,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:13,269 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:13,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:13,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:13,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:13,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c21ab41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13, skipping insertion in model container [2019-09-20 13:29:13,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,289 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:13,382 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:14,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:14,197 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:14,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:14,482 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:14,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14 WrapperNode [2019-09-20 13:29:14,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:14,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:14,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:14,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:14,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... [2019-09-20 13:29:14,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:14,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:14,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:14,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:14,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-09-20 13:29:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-20 13:29:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-09-20 13:29:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-20 13:29:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-20 13:29:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-20 13:29:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-20 13:29:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-20 13:29:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-20 13:29:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-20 13:29:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-20 13:29:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-20 13:29:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-09-20 13:29:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-20 13:29:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-20 13:29:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-20 13:29:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-20 13:29:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-20 13:29:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-20 13:29:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-20 13:29:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-20 13:29:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-20 13:29:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-20 13:29:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-20 13:29:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-20 13:29:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-20 13:29:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-20 13:29:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-20 13:29:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-20 13:29:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-20 13:29:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-20 13:29:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-20 13:29:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-20 13:29:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-20 13:29:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-20 13:29:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-20 13:29:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-20 13:29:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-20 13:29:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-20 13:29:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-20 13:29:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-20 13:29:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-20 13:29:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-20 13:29:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-20 13:29:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-20 13:29:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-20 13:29:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-20 13:29:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-20 13:29:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-20 13:29:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-20 13:29:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-20 13:29:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-20 13:29:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-20 13:29:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-20 13:29:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-20 13:29:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-20 13:29:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-20 13:29:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-20 13:29:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-20 13:29:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-20 13:29:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-20 13:29:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-20 13:29:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-20 13:29:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-20 13:29:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-20 13:29:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-20 13:29:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-20 13:29:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-20 13:29:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-20 13:29:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-20 13:29:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-20 13:29:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-20 13:29:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-20 13:29:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-09-20 13:29:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-20 13:29:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-20 13:29:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-20 13:29:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-20 13:29:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-20 13:29:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-20 13:29:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-20 13:29:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-20 13:29:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-20 13:29:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-20 13:29:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-20 13:29:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-20 13:29:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-20 13:29:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-20 13:29:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-20 13:29:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-20 13:29:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-20 13:29:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-20 13:29:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-20 13:29:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-20 13:29:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-20 13:29:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-20 13:29:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-20 13:29:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-20 13:29:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-20 13:29:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-20 13:29:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-20 13:29:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-20 13:29:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-20 13:29:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-20 13:29:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-20 13:29:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-20 13:29:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-20 13:29:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-20 13:29:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-09-20 13:29:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-20 13:29:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-20 13:29:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-20 13:29:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-20 13:29:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-20 13:29:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-20 13:29:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-20 13:29:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-20 13:29:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-20 13:29:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-20 13:29:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-20 13:29:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-20 13:29:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-20 13:29:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-20 13:29:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-20 13:29:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-20 13:29:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-20 13:29:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-20 13:29:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-20 13:29:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-20 13:29:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-20 13:29:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-20 13:29:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-20 13:29:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-20 13:29:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-20 13:29:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-20 13:29:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-20 13:29:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-09-20 13:29:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-09-20 13:29:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-20 13:29:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-20 13:29:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-20 13:29:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-20 13:29:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-20 13:29:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-20 13:29:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-20 13:29:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-20 13:29:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-20 13:29:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-20 13:29:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-20 13:29:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-20 13:29:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-20 13:29:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-20 13:29:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-20 13:29:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-20 13:29:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-20 13:29:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-20 13:29:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-20 13:29:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-20 13:29:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-20 13:29:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-20 13:29:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-20 13:29:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-20 13:29:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-20 13:29:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-20 13:29:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-20 13:29:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-20 13:29:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-20 13:29:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-20 13:29:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-20 13:29:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-20 13:29:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-20 13:29:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-20 13:29:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-20 13:29:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-20 13:29:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-20 13:29:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-20 13:29:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-20 13:29:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-20 13:29:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-20 13:29:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-20 13:29:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-20 13:29:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-20 13:29:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-20 13:29:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-20 13:29:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-20 13:29:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-20 13:29:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-20 13:29:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-20 13:29:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-20 13:29:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-20 13:29:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:16,833 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:16,833 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 13:29:16,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:16 BoogieIcfgContainer [2019-09-20 13:29:16,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:16,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:16,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:16,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:16,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:13" (1/3) ... [2019-09-20 13:29:16,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4a5061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:16, skipping insertion in model container [2019-09-20 13:29:16,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:14" (2/3) ... [2019-09-20 13:29:16,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4a5061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:16, skipping insertion in model container [2019-09-20 13:29:16,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:16" (3/3) ... [2019-09-20 13:29:16,844 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product19.cil.c [2019-09-20 13:29:16,854 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:16,867 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:16,884 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:16,920 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:16,920 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:16,920 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:16,921 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:16,921 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:16,921 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:16,921 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:16,921 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:16,958 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states. [2019-09-20 13:29:16,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-09-20 13:29:17,000 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:17,003 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:17,005 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:17,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:17,013 INFO L82 PathProgramCache]: Analyzing trace with hash -274357697, now seen corresponding path program 1 times [2019-09-20 13:29:17,015 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:17,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:17,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:17,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:17,086 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-09-20 13:29:17,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:17,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:17,684 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:17,690 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:17,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:17,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:17,709 INFO L87 Difference]: Start difference. First operand 491 states. Second operand 2 states. [2019-09-20 13:29:17,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:17,757 INFO L93 Difference]: Finished difference Result 477 states and 627 transitions. [2019-09-20 13:29:17,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:17,759 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 182 [2019-09-20 13:29:17,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:17,781 INFO L225 Difference]: With dead ends: 477 [2019-09-20 13:29:17,782 INFO L226 Difference]: Without dead ends: 468 [2019-09-20 13:29:17,783 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:17,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-09-20 13:29:17,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2019-09-20 13:29:17,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2019-09-20 13:29:17,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 616 transitions. [2019-09-20 13:29:17,910 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 616 transitions. Word has length 182 [2019-09-20 13:29:17,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:17,915 INFO L475 AbstractCegarLoop]: Abstraction has 468 states and 616 transitions. [2019-09-20 13:29:17,915 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:17,916 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 616 transitions. [2019-09-20 13:29:17,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-09-20 13:29:17,921 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:17,922 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:17,922 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:17,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:17,923 INFO L82 PathProgramCache]: Analyzing trace with hash -692158586, now seen corresponding path program 1 times [2019-09-20 13:29:17,923 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:17,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:17,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:17,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:17,928 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-09-20 13:29:18,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:18,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:18,182 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:18,183 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:18,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:18,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:18,184 INFO L87 Difference]: Start difference. First operand 468 states and 616 transitions. Second operand 3 states. [2019-09-20 13:29:18,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:18,240 INFO L93 Difference]: Finished difference Result 471 states and 619 transitions. [2019-09-20 13:29:18,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:18,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-09-20 13:29:18,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:18,255 INFO L225 Difference]: With dead ends: 471 [2019-09-20 13:29:18,255 INFO L226 Difference]: Without dead ends: 471 [2019-09-20 13:29:18,256 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:18,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2019-09-20 13:29:18,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 470. [2019-09-20 13:29:18,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2019-09-20 13:29:18,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 618 transitions. [2019-09-20 13:29:18,305 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 618 transitions. Word has length 183 [2019-09-20 13:29:18,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:18,307 INFO L475 AbstractCegarLoop]: Abstraction has 470 states and 618 transitions. [2019-09-20 13:29:18,307 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:18,307 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 618 transitions. [2019-09-20 13:29:18,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-09-20 13:29:18,314 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:18,315 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:18,315 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:18,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:18,315 INFO L82 PathProgramCache]: Analyzing trace with hash 389169114, now seen corresponding path program 1 times [2019-09-20 13:29:18,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:18,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:18,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,321 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-09-20 13:29:18,527 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:18,527 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:18,528 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:18,528 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:18,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:18,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:18,529 INFO L87 Difference]: Start difference. First operand 470 states and 618 transitions. Second operand 3 states. [2019-09-20 13:29:18,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:18,569 INFO L93 Difference]: Finished difference Result 511 states and 688 transitions. [2019-09-20 13:29:18,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:18,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-09-20 13:29:18,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:18,636 INFO L225 Difference]: With dead ends: 511 [2019-09-20 13:29:18,636 INFO L226 Difference]: Without dead ends: 511 [2019-09-20 13:29:18,637 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:18,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2019-09-20 13:29:18,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 510. [2019-09-20 13:29:18,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2019-09-20 13:29:18,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 687 transitions. [2019-09-20 13:29:18,676 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 687 transitions. Word has length 189 [2019-09-20 13:29:18,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:18,677 INFO L475 AbstractCegarLoop]: Abstraction has 510 states and 687 transitions. [2019-09-20 13:29:18,677 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:18,677 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 687 transitions. [2019-09-20 13:29:18,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-09-20 13:29:18,683 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:18,684 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:18,684 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:18,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:18,684 INFO L82 PathProgramCache]: Analyzing trace with hash -505587563, now seen corresponding path program 1 times [2019-09-20 13:29:18,685 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:18,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:18,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,689 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:18,918 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-09-20 13:29:18,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:29:18,919 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:29:18,920 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2019-09-20 13:29:18,922 INFO L207 CegarAbsIntRunner]: [44], [47], [50], [72], [75], [85], [123], [139], [142], [156], [157], [159], [269], [271], [275], [278], [279], [280], [283], [289], [311], [313], [314], [317], [326], [337], [338], [339], [341], [342], [345], [355], [356], [357], [384], [386], [398], [420], [515], [611], [613], [614], [615], [633], [635], [640], [664], [667], [681], [720], [722], [725], [726], [737], [739], [742], [746], [770], [774], [777], [785], [788], [806], [809], [819], [820], [826], [835], [839], [841], [843], [846], [853], [860], [863], [1124], [1178], [1200], [1211], [1214], [1253], [1255], [1368], [1371], [1385], [1391], [1394], [1403], [1592], [1594], [1596], [1598], [1599], [1611], [1612], [1613], [1614], [1615], [1616], [1617], [1629], [1639], [1640], [1641], [1642], [1643], [1644], [1647], [1648], [1649], [1650], [1651], [1653], [1654], [1655], [1656], [1663], [1664], [1669], [1670], [1675], [1676], [1695], [1711], [1712], [1721], [1722], [1723], [1731], [1732], [1733], [1735], [1736], [1741], [1742], [1743], [1744], [1745], [1746], [1747], [1748], [1749], [1751], [1752], [1753], [1754], [1769], [1770], [1771], [1793], [1795], [1796], [1797], [1799], [1800], [1801], [1802], [1803], [1804], [1805], [1817], [1818], [1819], [1820], [1821], [1822], [1823], [1824], [1825] [2019-09-20 13:29:19,025 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:29:19,026 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:29:19,201 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:29:19,204 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 196 root evaluator evaluations with a maximum evaluation depth of 0. Performed 196 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 364 variables. [2019-09-20 13:29:19,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:19,216 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:29:19,355 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:29:19,355 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:29:19,371 INFO L420 sIntCurrentIteration]: We unified 189 AI predicates to 189 [2019-09-20 13:29:19,371 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:29:19,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:29:19,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-09-20 13:29:19,373 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:19,375 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:19,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:19,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:19,376 INFO L87 Difference]: Start difference. First operand 510 states and 687 transitions. Second operand 2 states. [2019-09-20 13:29:19,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:19,376 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:29:19,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:19,377 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 190 [2019-09-20 13:29:19,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:19,378 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:29:19,378 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:19,379 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:19,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:19,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:19,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:19,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:19,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2019-09-20 13:29:19,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:19,381 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:19,381 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:19,382 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:19,382 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:19,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:19 BoogieIcfgContainer [2019-09-20 13:29:19,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:19,394 INFO L168 Benchmark]: Toolchain (without parser) took 6122.51 ms. Allocated memory was 132.6 MB in the beginning and 340.8 MB in the end (delta: 208.1 MB). Free memory was 85.6 MB in the beginning and 179.5 MB in the end (delta: -93.9 MB). Peak memory consumption was 114.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:19,396 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 132.6 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:19,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1213.08 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 85.1 MB in the beginning and 135.9 MB in the end (delta: -50.8 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:19,400 INFO L168 Benchmark]: Boogie Preprocessor took 217.53 ms. Allocated memory is still 200.3 MB. Free memory was 135.9 MB in the beginning and 127.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:19,402 INFO L168 Benchmark]: RCFGBuilder took 2133.98 ms. Allocated memory was 200.3 MB in the beginning and 265.8 MB in the end (delta: 65.5 MB). Free memory was 127.3 MB in the beginning and 172.4 MB in the end (delta: -45.1 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:19,405 INFO L168 Benchmark]: TraceAbstraction took 2553.18 ms. Allocated memory was 265.8 MB in the beginning and 340.8 MB in the end (delta: 75.0 MB). Free memory was 172.4 MB in the beginning and 179.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:19,419 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 132.6 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1213.08 ms. Allocated memory was 132.6 MB in the beginning and 200.3 MB in the end (delta: 67.6 MB). Free memory was 85.1 MB in the beginning and 135.9 MB in the end (delta: -50.8 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 217.53 ms. Allocated memory is still 200.3 MB. Free memory was 135.9 MB in the beginning and 127.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2133.98 ms. Allocated memory was 200.3 MB in the beginning and 265.8 MB in the end (delta: 65.5 MB). Free memory was 127.3 MB in the beginning and 172.4 MB in the end (delta: -45.1 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2553.18 ms. Allocated memory was 265.8 MB in the beginning and 340.8 MB in the end (delta: 75.0 MB). Free memory was 172.4 MB in the beginning and 179.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1859]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 111 procedures, 745 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1869 SDtfs, 53 SDslu, 1221 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=510occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.185185185185185 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 744 NumberOfCodeBlocks, 744 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 740 ConstructedInterpolants, 0 QuantifiedInterpolants, 142206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 142/144 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...