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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:14:52,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:14:52,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:14:52,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:14:52,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:14:52,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:14:52,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:14:52,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:14:52,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:14:52,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:14:52,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:14:52,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:14:52,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:14:52,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:14:52,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:14:52,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:14:52,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:14:52,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:14:52,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:14:52,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:14:52,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:14:52,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:14:52,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:14:52,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:14:52,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:14:52,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:14:52,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:14:52,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:14:52,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:14:52,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:14:52,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:14:52,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:14:52,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:14:52,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:14:52,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:14:52,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:14:52,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:14:52,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:14:52,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:14:52,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:14:52,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:14:52,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:14:52,511 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:14:52,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:14:52,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:14:52,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:14:52,515 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:14:52,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:14:52,516 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:14:52,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:14:52,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:14:52,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:14:52,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:14:52,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:14:52,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:14:52,517 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:14:52,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:14:52,518 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:14:52,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:14:52,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:14:52,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:14:52,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:14:52,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:14:52,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:52,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:14:52,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:14:52,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:14:52,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:14:52,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:14:52,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:14:52,521 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:14:52,795 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:14:52,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:14:52,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:14:52,812 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:14:52,812 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:14:52,813 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product27.cil.c [2019-10-15 01:14:52,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529dd662a/4f8e40c132214adb83d43ff4b0dba8bc/FLAG361db0413 [2019-10-15 01:14:53,497 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:14:53,497 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product27.cil.c [2019-10-15 01:14:53,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529dd662a/4f8e40c132214adb83d43ff4b0dba8bc/FLAG361db0413 [2019-10-15 01:14:53,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529dd662a/4f8e40c132214adb83d43ff4b0dba8bc [2019-10-15 01:14:53,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:14:53,753 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:14:53,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:53,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:14:53,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:14:53,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:53" (1/1) ... [2019-10-15 01:14:53,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321e043c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:53, skipping insertion in model container [2019-10-15 01:14:53,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:53" (1/1) ... [2019-10-15 01:14:53,770 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:14:53,850 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:14:54,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:54,696 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:14:54,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:54,917 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:14:54,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:54 WrapperNode [2019-10-15 01:14:54,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:54,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:14:54,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:14:54,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:14:54,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:54" (1/1) ... [2019-10-15 01:14:54,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:54" (1/1) ... [2019-10-15 01:14:54,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:54" (1/1) ... [2019-10-15 01:14:54,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:54" (1/1) ... [2019-10-15 01:14:55,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:54" (1/1) ... [2019-10-15 01:14:55,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:54" (1/1) ... [2019-10-15 01:14:55,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:54" (1/1) ... [2019-10-15 01:14:55,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:14:55,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:14:55,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:14:55,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:14:55,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:54" (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 [2019-10-15 01:14:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:14:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:14:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:14:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:14:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:14:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:14:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:14:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:14:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:14:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:14:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:14:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:14:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:14:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:14:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:14:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:14:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:14:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:14:55,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:14:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:14:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:14:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:14:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:14:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:14:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:14:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:14:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:14:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:14:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:14:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:14:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:14:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:14:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:14:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:14:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:14:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:14:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:14:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:14:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:14:55,212 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:14:55,212 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-15 01:14:55,212 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:14:55,212 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:14:55,212 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:14:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:14:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:14:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:14:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:14:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:14:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:14:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:14:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:14:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:14:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:14:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:14:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:14:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:14:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:14:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:14:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:14:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:14:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:14:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:14:55,217 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:14:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:14:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:14:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:14:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:14:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:14:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:14:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:14:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:14:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:14:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:14:55,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:14:55,221 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:14:55,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:14:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:14:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:14:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:14:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:14:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:14:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:14:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:14:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:14:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:14:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:14:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:14:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:14:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:14:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:14:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:14:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:14:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:14:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:14:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:14:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:14:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:14:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:14:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:14:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:14:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:14:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:14:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:14:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:14:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:14:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:14:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:14:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:14:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:14:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:14:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:14:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:14:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:14:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:14:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:14:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:14:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:14:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:14:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:14:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:14:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:14:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:14:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:14:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:14:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:14:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:14:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:14:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:14:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:14:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:14:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:14:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:14:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:14:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:14:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:14:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:14:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:14:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:14:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:14:55,238 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:14:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:14:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:14:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:14:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:14:55,239 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:14:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:14:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:14:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:14:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:14:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:14:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:14:55,240 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:14:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:14:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:14:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:14:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:14:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:14:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:14:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:14:55,241 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:14:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:14:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:14:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:14:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:14:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:14:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:14:55,242 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:14:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:14:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:14:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:14:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:14:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:14:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:14:55,243 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:14:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:14:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:14:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:14:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:14:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:14:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:14:55,244 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:14:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:14:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:14:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-15 01:14:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:14:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:14:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:14:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:14:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:14:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:14:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:14:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:14:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:14:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:14:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:14:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:14:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:14:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:14:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:14:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:14:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:14:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:14:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:14:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:14:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:14:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:14:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:14:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:14:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:14:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:14:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:14:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:14:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:14:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:14:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:14:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:14:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:14:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:14:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:14:55,250 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:14:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:14:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:14:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:14:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:14:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:14:55,251 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:14:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:14:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:14:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:14:55,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:14:57,431 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:14:57,432 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:14:57,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:57 BoogieIcfgContainer [2019-10-15 01:14:57,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:14:57,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:14:57,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:14:57,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:14:57,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:14:53" (1/3) ... [2019-10-15 01:14:57,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eca9045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:57, skipping insertion in model container [2019-10-15 01:14:57,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:54" (2/3) ... [2019-10-15 01:14:57,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eca9045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:57, skipping insertion in model container [2019-10-15 01:14:57,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:57" (3/3) ... [2019-10-15 01:14:57,442 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product27.cil.c [2019-10-15 01:14:57,451 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:14:57,460 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:14:57,472 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:14:57,513 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:14:57,513 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:14:57,514 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:14:57,514 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:14:57,514 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:14:57,523 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:14:57,523 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:14:57,523 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:14:57,564 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states. [2019-10-15 01:14:57,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-15 01:14:57,587 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:57,588 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:57,590 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:57,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:57,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1666435030, now seen corresponding path program 1 times [2019-10-15 01:14:57,604 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:57,605 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875026218] [2019-10-15 01:14:57,605 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:57,605 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:57,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:58,309 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:58,309 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875026218] [2019-10-15 01:14:58,310 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:58,311 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:14:58,311 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672723353] [2019-10-15 01:14:58,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:14:58,320 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:58,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:14:58,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:14:58,340 INFO L87 Difference]: Start difference. First operand 631 states. Second operand 2 states. [2019-10-15 01:14:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:58,448 INFO L93 Difference]: Finished difference Result 937 states and 1264 transitions. [2019-10-15 01:14:58,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:14:58,449 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 179 [2019-10-15 01:14:58,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:58,480 INFO L225 Difference]: With dead ends: 937 [2019-10-15 01:14:58,481 INFO L226 Difference]: Without dead ends: 602 [2019-10-15 01:14:58,496 INFO L600 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 [2019-10-15 01:14:58,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-15 01:14:58,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-10-15 01:14:58,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-10-15 01:14:58,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 816 transitions. [2019-10-15 01:14:58,674 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 816 transitions. Word has length 179 [2019-10-15 01:14:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:58,678 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 816 transitions. [2019-10-15 01:14:58,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:14:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 816 transitions. [2019-10-15 01:14:58,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 01:14:58,691 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:58,691 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:58,692 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:58,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:58,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1122498688, now seen corresponding path program 1 times [2019-10-15 01:14:58,694 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:58,694 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300045736] [2019-10-15 01:14:58,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:58,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:58,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:59,066 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:59,067 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300045736] [2019-10-15 01:14:59,067 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:59,067 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:59,068 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456748901] [2019-10-15 01:14:59,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:59,076 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:59,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:59,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:59,077 INFO L87 Difference]: Start difference. First operand 602 states and 816 transitions. Second operand 3 states. [2019-10-15 01:14:59,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:59,148 INFO L93 Difference]: Finished difference Result 920 states and 1226 transitions. [2019-10-15 01:14:59,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:59,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-15 01:14:59,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:59,154 INFO L225 Difference]: With dead ends: 920 [2019-10-15 01:14:59,154 INFO L226 Difference]: Without dead ends: 605 [2019-10-15 01:14:59,156 INFO L600 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 [2019-10-15 01:14:59,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2019-10-15 01:14:59,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 604. [2019-10-15 01:14:59,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2019-10-15 01:14:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 818 transitions. [2019-10-15 01:14:59,201 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 818 transitions. Word has length 180 [2019-10-15 01:14:59,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:59,202 INFO L462 AbstractCegarLoop]: Abstraction has 604 states and 818 transitions. [2019-10-15 01:14:59,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 818 transitions. [2019-10-15 01:14:59,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:14:59,206 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:59,206 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:59,207 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:59,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:59,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1965541329, now seen corresponding path program 1 times [2019-10-15 01:14:59,207 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:59,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590894260] [2019-10-15 01:14:59,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:59,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:59,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:59,434 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590894260] [2019-10-15 01:14:59,435 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:59,435 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:59,435 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536038937] [2019-10-15 01:14:59,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:59,441 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:59,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:59,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:59,442 INFO L87 Difference]: Start difference. First operand 604 states and 818 transitions. Second operand 3 states. [2019-10-15 01:14:59,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:59,523 INFO L93 Difference]: Finished difference Result 1188 states and 1640 transitions. [2019-10-15 01:14:59,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:59,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-15 01:14:59,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:59,533 INFO L225 Difference]: With dead ends: 1188 [2019-10-15 01:14:59,533 INFO L226 Difference]: Without dead ends: 649 [2019-10-15 01:14:59,536 INFO L600 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 [2019-10-15 01:14:59,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2019-10-15 01:14:59,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 648. [2019-10-15 01:14:59,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2019-10-15 01:14:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 893 transitions. [2019-10-15 01:14:59,574 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 893 transitions. Word has length 192 [2019-10-15 01:14:59,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:59,575 INFO L462 AbstractCegarLoop]: Abstraction has 648 states and 893 transitions. [2019-10-15 01:14:59,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:59,575 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 893 transitions. [2019-10-15 01:14:59,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-15 01:14:59,579 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:59,579 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:59,579 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:59,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:59,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1219929251, now seen corresponding path program 1 times [2019-10-15 01:14:59,580 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:59,580 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583736852] [2019-10-15 01:14:59,581 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:59,581 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:59,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:59,898 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583736852] [2019-10-15 01:14:59,898 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:59,899 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:59,899 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510475005] [2019-10-15 01:14:59,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:59,900 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:59,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:59,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:59,901 INFO L87 Difference]: Start difference. First operand 648 states and 893 transitions. Second operand 3 states. [2019-10-15 01:14:59,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:59,957 INFO L93 Difference]: Finished difference Result 1317 states and 1860 transitions. [2019-10-15 01:14:59,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:59,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-10-15 01:14:59,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:59,967 INFO L225 Difference]: With dead ends: 1317 [2019-10-15 01:14:59,967 INFO L226 Difference]: Without dead ends: 734 [2019-10-15 01:14:59,970 INFO L600 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 [2019-10-15 01:14:59,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2019-10-15 01:15:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 733. [2019-10-15 01:15:00,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2019-10-15 01:15:00,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1037 transitions. [2019-10-15 01:15:00,022 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1037 transitions. Word has length 193 [2019-10-15 01:15:00,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:00,023 INFO L462 AbstractCegarLoop]: Abstraction has 733 states and 1037 transitions. [2019-10-15 01:15:00,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1037 transitions. [2019-10-15 01:15:00,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:15:00,032 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:00,032 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:00,033 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:00,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:00,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1851782167, now seen corresponding path program 1 times [2019-10-15 01:15:00,034 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:00,034 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441150054] [2019-10-15 01:15:00,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:00,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:00,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:00,427 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:15:00,428 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441150054] [2019-10-15 01:15:00,428 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:00,429 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 01:15:00,429 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589857123] [2019-10-15 01:15:00,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:15:00,430 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:00,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:15:00,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:15:00,431 INFO L87 Difference]: Start difference. First operand 733 states and 1037 transitions. Second operand 12 states. [2019-10-15 01:15:15,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:15,142 INFO L93 Difference]: Finished difference Result 3396 states and 4677 transitions. [2019-10-15 01:15:15,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-15 01:15:15,143 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 196 [2019-10-15 01:15:15,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:15,186 INFO L225 Difference]: With dead ends: 3396 [2019-10-15 01:15:15,186 INFO L226 Difference]: Without dead ends: 3082 [2019-10-15 01:15:15,190 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=377, Invalid=1515, Unknown=0, NotChecked=0, Total=1892 [2019-10-15 01:15:15,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2019-10-15 01:15:15,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 3057. [2019-10-15 01:15:15,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3057 states. [2019-10-15 01:15:15,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4147 transitions. [2019-10-15 01:15:15,423 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4147 transitions. Word has length 196 [2019-10-15 01:15:15,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:15,425 INFO L462 AbstractCegarLoop]: Abstraction has 3057 states and 4147 transitions. [2019-10-15 01:15:15,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:15:15,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4147 transitions. [2019-10-15 01:15:15,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:15:15,434 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:15,435 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:15,435 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:15,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:15,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1899215644, now seen corresponding path program 1 times [2019-10-15 01:15:15,436 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:15,436 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680288082] [2019-10-15 01:15:15,437 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:15,437 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:15,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:15,961 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:15:15,962 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680288082] [2019-10-15 01:15:15,963 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:15,963 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:15:15,964 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806986146] [2019-10-15 01:15:15,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:15:15,964 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:15,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:15:15,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:15:15,965 INFO L87 Difference]: Start difference. First operand 3057 states and 4147 transitions. Second operand 18 states. [2019-10-15 01:15:16,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:16,507 INFO L93 Difference]: Finished difference Result 5479 states and 7449 transitions. [2019-10-15 01:15:16,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:15:16,508 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 197 [2019-10-15 01:15:16,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:16,536 INFO L225 Difference]: With dead ends: 5479 [2019-10-15 01:15:16,537 INFO L226 Difference]: Without dead ends: 2823 [2019-10-15 01:15:16,548 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:15:16,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2019-10-15 01:15:16,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 2821. [2019-10-15 01:15:16,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2821 states. [2019-10-15 01:15:16,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 3828 transitions. [2019-10-15 01:15:16,740 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 3828 transitions. Word has length 197 [2019-10-15 01:15:16,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:16,743 INFO L462 AbstractCegarLoop]: Abstraction has 2821 states and 3828 transitions. [2019-10-15 01:15:16,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:15:16,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 3828 transitions. [2019-10-15 01:15:16,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-15 01:15:16,753 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:16,754 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:16,754 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:16,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:16,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1034670512, now seen corresponding path program 1 times [2019-10-15 01:15:16,755 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:16,755 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218422806] [2019-10-15 01:15:16,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:16,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:16,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:15:19,251 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218422806] [2019-10-15 01:15:19,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333510616] [2019-10-15 01:15:19,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:19,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 2974 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:19,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:15:20,378 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:20,835 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:20,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:21,197 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:21,551 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:15:21,552 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:21,552 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [55, 9] total 67 [2019-10-15 01:15:21,552 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539174458] [2019-10-15 01:15:21,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:15:21,554 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:21,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:15:21,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=4248, Unknown=0, NotChecked=0, Total=4422 [2019-10-15 01:15:21,556 INFO L87 Difference]: Start difference. First operand 2821 states and 3828 transitions. Second operand 9 states. [2019-10-15 01:15:24,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:24,482 INFO L93 Difference]: Finished difference Result 5620 states and 7636 transitions. [2019-10-15 01:15:24,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:15:24,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 206 [2019-10-15 01:15:24,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:24,508 INFO L225 Difference]: With dead ends: 5620 [2019-10-15 01:15:24,509 INFO L226 Difference]: Without dead ends: 2835 [2019-10-15 01:15:24,524 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 400 SyntacticMatches, 7 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=201, Invalid=4629, Unknown=0, NotChecked=0, Total=4830 [2019-10-15 01:15:24,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2019-10-15 01:15:24,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 2835. [2019-10-15 01:15:24,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2835 states. [2019-10-15 01:15:24,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 3846 transitions. [2019-10-15 01:15:24,738 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 3846 transitions. Word has length 206 [2019-10-15 01:15:24,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:24,739 INFO L462 AbstractCegarLoop]: Abstraction has 2835 states and 3846 transitions. [2019-10-15 01:15:24,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:15:24,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 3846 transitions. [2019-10-15 01:15:24,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:15:24,747 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:24,748 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:24,969 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:24,970 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:24,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:24,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1932089805, now seen corresponding path program 1 times [2019-10-15 01:15:24,971 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:24,971 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417330698] [2019-10-15 01:15:24,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:24,972 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:24,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat