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 -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:03:39,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:03:39,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:03:39,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:03:39,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:03:39,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:03:39,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:03:39,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:03:39,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:03:39,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:03:39,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:03:39,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:03:39,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:03:39,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:03:39,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:03:39,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:03:39,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:03:39,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:03:39,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:03:39,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:03:39,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:03:39,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:03:39,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:03:39,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:03:39,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:03:39,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:03:39,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:03:39,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:03:39,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:03:39,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:03:39,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:03:39,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:03:39,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:03:39,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:03:39,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:03:39,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:03:39,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:03:39,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:03:39,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:03:39,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:03:39,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:03:39,400 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 [2019-09-20 13:03:39,415 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:03:39,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:03:39,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:03:39,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:03:39,417 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:03:39,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:03:39,417 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:03:39,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:03:39,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:03:39,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:03:39,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:03:39,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:03:39,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:03:39,419 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:03:39,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:03:39,419 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:03:39,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:03:39,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:03:39,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:03:39,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:03:39,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:03:39,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:03:39,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:03:39,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:03:39,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:03:39,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:03:39,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:03:39,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:03:39,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:03:39,461 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:03:39,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:03:39,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:03:39,479 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:03:39,479 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:03:39,480 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product24.cil.c [2019-09-20 13:03:39,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9efb638/65c578d9aae74e0bb0f86718e0d2390e/FLAGeb9b45c62 [2019-09-20 13:03:40,156 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:03:40,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product24.cil.c [2019-09-20 13:03:40,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9efb638/65c578d9aae74e0bb0f86718e0d2390e/FLAGeb9b45c62 [2019-09-20 13:03:40,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9efb638/65c578d9aae74e0bb0f86718e0d2390e [2019-09-20 13:03:40,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:03:40,397 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:03:40,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:03:40,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:03:40,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:03:40,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:03:40" (1/1) ... [2019-09-20 13:03:40,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b4adf6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:40, skipping insertion in model container [2019-09-20 13:03:40,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:03:40" (1/1) ... [2019-09-20 13:03:40,412 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:03:40,501 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:03:41,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:03:41,322 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:03:41,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:03:41,646 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:03:41,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:41 WrapperNode [2019-09-20 13:03:41,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:03:41,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:03:41,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:03:41,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:03:41,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:41" (1/1) ... [2019-09-20 13:03:41,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:41" (1/1) ... [2019-09-20 13:03:41,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:41" (1/1) ... [2019-09-20 13:03:41,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:41" (1/1) ... [2019-09-20 13:03:41,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:41" (1/1) ... [2019-09-20 13:03:41,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:41" (1/1) ... [2019-09-20 13:03:41,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:41" (1/1) ... [2019-09-20 13:03:41,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:03:41,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:03:41,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:03:41,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:03:41,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:41" (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 13:03:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:03:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:03:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:03:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-20 13:03:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-20 13:03:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-20 13:03:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-20 13:03:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-20 13:03:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-20 13:03:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-20 13:03:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-20 13:03:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-20 13:03:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-20 13:03:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-20 13:03:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-20 13:03:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-20 13:03:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-20 13:03:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-20 13:03:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-20 13:03:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-20 13:03:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-20 13:03:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-20 13:03:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-20 13:03:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-20 13:03:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:03:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-20 13:03:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-09-20 13:03:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-20 13:03:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-20 13:03:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-09-20 13:03:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-20 13:03:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-09-20 13:03:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-20 13:03:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-20 13:03:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-20 13:03:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-20 13:03:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-20 13:03:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-20 13:03:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-20 13:03:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-20 13:03:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-20 13:03:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-20 13:03:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-20 13:03:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-20 13:03:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-20 13:03:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-20 13:03:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-20 13:03:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-20 13:03:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-20 13:03:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-20 13:03:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-20 13:03:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-20 13:03:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-20 13:03:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:03:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:03:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-20 13:03:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-20 13:03:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-20 13:03:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-20 13:03:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-20 13:03:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-20 13:03:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-20 13:03:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-20 13:03:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-20 13:03:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-20 13:03:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-20 13:03:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:03:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:03:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:03:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:03:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:03:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:03:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:03:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-09-20 13:03:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-09-20 13:03:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-20 13:03:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-20 13:03:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-20 13:03:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-20 13:03:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-09-20 13:03:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:03:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:03:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:03:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:03:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-20 13:03:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-20 13:03:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-20 13:03:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-20 13:03:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-20 13:03:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-20 13:03:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-20 13:03:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-20 13:03:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-20 13:03:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-20 13:03:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-20 13:03:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-20 13:03:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-20 13:03:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-20 13:03:41,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-20 13:03:41,980 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-20 13:03:41,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-20 13:03:41,980 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-20 13:03:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-20 13:03:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-20 13:03:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-20 13:03:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-20 13:03:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-20 13:03:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-20 13:03:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-20 13:03:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-20 13:03:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-20 13:03:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-20 13:03:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-20 13:03:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-20 13:03:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:03:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:03:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-20 13:03:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-20 13:03:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-20 13:03:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-20 13:03:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-20 13:03:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-20 13:03:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-20 13:03:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-20 13:03:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-20 13:03:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-20 13:03:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-20 13:03:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-20 13:03:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-20 13:03:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-20 13:03:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-20 13:03:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-20 13:03:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-20 13:03:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-20 13:03:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-20 13:03:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-20 13:03:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-20 13:03:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-20 13:03:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-20 13:03:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-20 13:03:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-20 13:03:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-20 13:03:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-20 13:03:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-20 13:03:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-20 13:03:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-20 13:03:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-20 13:03:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:03:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:03:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-20 13:03:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-20 13:03:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-20 13:03:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-20 13:03:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-20 13:03:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-20 13:03:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-20 13:03:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-20 13:03:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-20 13:03:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-20 13:03:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-20 13:03:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-20 13:03:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-20 13:03:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-20 13:03:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-20 13:03:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-20 13:03:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-20 13:03:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-20 13:03:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-20 13:03:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-20 13:03:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-20 13:03:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-20 13:03:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-20 13:03:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-20 13:03:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-20 13:03:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-20 13:03:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-20 13:03:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:03:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-09-20 13:03:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-09-20 13:03:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-20 13:03:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-09-20 13:03:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-09-20 13:03:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-20 13:03:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-20 13:03:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-20 13:03:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-20 13:03:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-20 13:03:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-20 13:03:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-20 13:03:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-20 13:03:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:03:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:03:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:03:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-20 13:03:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-20 13:03:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-20 13:03:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-20 13:03:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:03:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:03:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-20 13:03:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-20 13:03:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-20 13:03:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-20 13:03:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-20 13:03:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:03:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:03:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:03:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:03:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:03:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:03:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:03:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:03:42,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:03:42,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:03:42,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:03:42,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:03:42,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:03:42,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:03:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:03:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:03:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:03:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-20 13:03:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-09-20 13:03:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-09-20 13:03:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:03:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-20 13:03:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-20 13:03:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-20 13:03:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-20 13:03:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-20 13:03:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-20 13:03:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-20 13:03:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-20 13:03:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-20 13:03:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-20 13:03:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-20 13:03:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-20 13:03:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-20 13:03:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-20 13:03:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-20 13:03:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:03:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:03:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:03:44,302 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:03:44,302 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 13:03:44,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:03:44 BoogieIcfgContainer [2019-09-20 13:03:44,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:03:44,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:03:44,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:03:44,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:03:44,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:03:40" (1/3) ... [2019-09-20 13:03:44,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497e4888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:03:44, skipping insertion in model container [2019-09-20 13:03:44,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:41" (2/3) ... [2019-09-20 13:03:44,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497e4888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:03:44, skipping insertion in model container [2019-09-20 13:03:44,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:03:44" (3/3) ... [2019-09-20 13:03:44,314 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product24.cil.c [2019-09-20 13:03:44,324 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:03:44,337 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:03:44,356 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:03:44,404 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:03:44,404 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:03:44,405 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:03:44,405 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:03:44,405 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:03:44,405 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:03:44,405 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:03:44,406 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:03:44,410 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:03:44,450 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states. [2019-09-20 13:03:44,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-20 13:03:44,486 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:44,488 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:03:44,495 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:44,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:44,502 INFO L82 PathProgramCache]: Analyzing trace with hash -294836604, now seen corresponding path program 1 times [2019-09-20 13:03:44,504 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:44,505 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:44,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:44,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:44,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:45,253 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 13:03:45,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:45,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:03:45,262 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:03:45,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:03:45,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:03:45,279 INFO L87 Difference]: Start difference. First operand 523 states. Second operand 2 states. [2019-09-20 13:03:45,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:45,368 INFO L93 Difference]: Finished difference Result 777 states and 1016 transitions. [2019-09-20 13:03:45,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:03:45,370 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 193 [2019-09-20 13:03:45,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:45,411 INFO L225 Difference]: With dead ends: 777 [2019-09-20 13:03:45,411 INFO L226 Difference]: Without dead ends: 500 [2019-09-20 13:03:45,423 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 13:03:45,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2019-09-20 13:03:45,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2019-09-20 13:03:45,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2019-09-20 13:03:45,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 658 transitions. [2019-09-20 13:03:45,563 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 658 transitions. Word has length 193 [2019-09-20 13:03:45,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:45,567 INFO L475 AbstractCegarLoop]: Abstraction has 500 states and 658 transitions. [2019-09-20 13:03:45,567 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:03:45,568 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 658 transitions. [2019-09-20 13:03:45,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-09-20 13:03:45,576 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:45,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:03:45,577 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:45,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:45,578 INFO L82 PathProgramCache]: Analyzing trace with hash -610147950, now seen corresponding path program 1 times [2019-09-20 13:03:45,578 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:45,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:45,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:45,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:45,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:45,894 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 13:03:45,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:45,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:03:45,903 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:03:45,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:03:45,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:03:45,905 INFO L87 Difference]: Start difference. First operand 500 states and 658 transitions. Second operand 3 states. [2019-09-20 13:03:45,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:45,968 INFO L93 Difference]: Finished difference Result 760 states and 982 transitions. [2019-09-20 13:03:45,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:03:45,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-09-20 13:03:45,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:45,973 INFO L225 Difference]: With dead ends: 760 [2019-09-20 13:03:45,973 INFO L226 Difference]: Without dead ends: 503 [2019-09-20 13:03:45,975 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 13:03:45,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2019-09-20 13:03:45,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 502. [2019-09-20 13:03:45,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2019-09-20 13:03:45,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 660 transitions. [2019-09-20 13:03:45,998 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 660 transitions. Word has length 194 [2019-09-20 13:03:45,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:45,998 INFO L475 AbstractCegarLoop]: Abstraction has 502 states and 660 transitions. [2019-09-20 13:03:45,998 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:03:45,999 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 660 transitions. [2019-09-20 13:03:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-09-20 13:03:46,003 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:46,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:03:46,004 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:46,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:46,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1302493868, now seen corresponding path program 1 times [2019-09-20 13:03:46,004 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:46,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:46,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:46,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:46,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:46,218 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 13:03:46,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:46,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:03:46,220 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:03:46,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:03:46,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:03:46,220 INFO L87 Difference]: Start difference. First operand 502 states and 660 transitions. Second operand 3 states. [2019-09-20 13:03:46,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:46,252 INFO L93 Difference]: Finished difference Result 982 states and 1321 transitions. [2019-09-20 13:03:46,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:03:46,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2019-09-20 13:03:46,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:46,257 INFO L225 Difference]: With dead ends: 982 [2019-09-20 13:03:46,257 INFO L226 Difference]: Without dead ends: 545 [2019-09-20 13:03:46,259 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 13:03:46,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2019-09-20 13:03:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 544. [2019-09-20 13:03:46,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2019-09-20 13:03:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 732 transitions. [2019-09-20 13:03:46,281 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 732 transitions. Word has length 206 [2019-09-20 13:03:46,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:46,282 INFO L475 AbstractCegarLoop]: Abstraction has 544 states and 732 transitions. [2019-09-20 13:03:46,282 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:03:46,282 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 732 transitions. [2019-09-20 13:03:46,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-09-20 13:03:46,288 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:46,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:03:46,289 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:46,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:46,289 INFO L82 PathProgramCache]: Analyzing trace with hash 2140310884, now seen corresponding path program 1 times [2019-09-20 13:03:46,290 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:46,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:46,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:46,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:46,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:46,457 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 13:03:46,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:46,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:03:46,460 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:03:46,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:03:46,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:03:46,461 INFO L87 Difference]: Start difference. First operand 544 states and 732 transitions. Second operand 3 states. [2019-09-20 13:03:46,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:46,525 INFO L93 Difference]: Finished difference Result 1105 states and 1532 transitions. [2019-09-20 13:03:46,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:03:46,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2019-09-20 13:03:46,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:46,539 INFO L225 Difference]: With dead ends: 1105 [2019-09-20 13:03:46,539 INFO L226 Difference]: Without dead ends: 626 [2019-09-20 13:03:46,542 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 13:03:46,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2019-09-20 13:03:46,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 625. [2019-09-20 13:03:46,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2019-09-20 13:03:46,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 870 transitions. [2019-09-20 13:03:46,590 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 870 transitions. Word has length 207 [2019-09-20 13:03:46,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:46,593 INFO L475 AbstractCegarLoop]: Abstraction has 625 states and 870 transitions. [2019-09-20 13:03:46,594 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:03:46,594 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 870 transitions. [2019-09-20 13:03:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-09-20 13:03:46,604 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:46,604 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:03:46,604 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:46,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:46,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1021102247, now seen corresponding path program 1 times [2019-09-20 13:03:46,605 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:46,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:46,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:46,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:46,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:47,064 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 13:03:47,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:03:47,065 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:03:47,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:47,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 2703 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-20 13:03:47,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:03:48,063 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-20 13:03:48,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:03:48,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2019-09-20 13:03:48,074 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-20 13:03:48,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-20 13:03:48,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2019-09-20 13:03:48,075 INFO L87 Difference]: Start difference. First operand 625 states and 870 transitions. Second operand 15 states. [2019-09-20 13:03:49,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:49,590 INFO L93 Difference]: Finished difference Result 1228 states and 1726 transitions. [2019-09-20 13:03:49,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-20 13:03:49,591 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 210 [2019-09-20 13:03:49,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:49,595 INFO L225 Difference]: With dead ends: 1228 [2019-09-20 13:03:49,595 INFO L226 Difference]: Without dead ends: 639 [2019-09-20 13:03:49,598 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2019-09-20 13:03:49,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2019-09-20 13:03:49,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2019-09-20 13:03:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2019-09-20 13:03:49,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 887 transitions. [2019-09-20 13:03:49,635 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 887 transitions. Word has length 210 [2019-09-20 13:03:49,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:49,635 INFO L475 AbstractCegarLoop]: Abstraction has 639 states and 887 transitions. [2019-09-20 13:03:49,635 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-20 13:03:49,636 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 887 transitions. [2019-09-20 13:03:49,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-09-20 13:03:49,640 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:49,641 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 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 13:03:49,641 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:49,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:49,642 INFO L82 PathProgramCache]: Analyzing trace with hash 774164000, now seen corresponding path program 1 times [2019-09-20 13:03:49,642 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:49,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:49,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:49,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:49,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:49,952 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 13:03:49,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:49,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-20 13:03:49,953 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-20 13:03:49,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-20 13:03:49,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:03:49,954 INFO L87 Difference]: Start difference. First operand 639 states and 887 transitions. Second operand 13 states. [2019-09-20 13:03:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:53,229 INFO L93 Difference]: Finished difference Result 1458 states and 2019 transitions. [2019-09-20 13:03:53,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-20 13:03:53,230 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2019-09-20 13:03:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:53,244 INFO L225 Difference]: With dead ends: 1458 [2019-09-20 13:03:53,245 INFO L226 Difference]: Without dead ends: 1214 [2019-09-20 13:03:53,247 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2019-09-20 13:03:53,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2019-09-20 13:03:53,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1206. [2019-09-20 13:03:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1206 states. [2019-09-20 13:03:53,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1693 transitions. [2019-09-20 13:03:53,333 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1693 transitions. Word has length 218 [2019-09-20 13:03:53,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:53,334 INFO L475 AbstractCegarLoop]: Abstraction has 1206 states and 1693 transitions. [2019-09-20 13:03:53,334 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-20 13:03:53,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1693 transitions. [2019-09-20 13:03:53,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-09-20 13:03:53,356 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:53,356 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 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 13:03:53,356 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:53,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:53,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1191910949, now seen corresponding path program 1 times [2019-09-20 13:03:53,357 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:53,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:53,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:53,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:53,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:53,528 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 13:03:53,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:53,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:03:53,531 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:03:53,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:03:53,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:03:53,532 INFO L87 Difference]: Start difference. First operand 1206 states and 1693 transitions. Second operand 3 states. [2019-09-20 13:03:53,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:53,603 INFO L93 Difference]: Finished difference Result 2647 states and 3835 transitions. [2019-09-20 13:03:53,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:03:53,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2019-09-20 13:03:53,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:53,627 INFO L225 Difference]: With dead ends: 2647 [2019-09-20 13:03:53,627 INFO L226 Difference]: Without dead ends: 1520 [2019-09-20 13:03:53,638 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 13:03:53,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2019-09-20 13:03:53,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1518. [2019-09-20 13:03:53,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2019-09-20 13:03:53,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2223 transitions. [2019-09-20 13:03:53,768 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2223 transitions. Word has length 216 [2019-09-20 13:03:53,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:53,771 INFO L475 AbstractCegarLoop]: Abstraction has 1518 states and 2223 transitions. [2019-09-20 13:03:53,771 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:03:53,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2223 transitions. [2019-09-20 13:03:53,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-09-20 13:03:53,780 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:53,781 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 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 13:03:53,781 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:53,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:53,782 INFO L82 PathProgramCache]: Analyzing trace with hash 651577147, now seen corresponding path program 1 times [2019-09-20 13:03:53,782 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:53,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:53,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:53,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:53,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-20 13:03:54,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:54,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:03:54,131 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:03:54,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:03:54,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:03:54,132 INFO L87 Difference]: Start difference. First operand 1518 states and 2223 transitions. Second operand 9 states. [2019-09-20 13:03:54,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:54,346 INFO L93 Difference]: Finished difference Result 2034 states and 2879 transitions. [2019-09-20 13:03:54,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:03:54,347 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 219 [2019-09-20 13:03:54,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:54,365 INFO L225 Difference]: With dead ends: 2034 [2019-09-20 13:03:54,365 INFO L226 Difference]: Without dead ends: 1541 [2019-09-20 13:03:54,368 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:03:54,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2019-09-20 13:03:54,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1529. [2019-09-20 13:03:54,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1529 states. [2019-09-20 13:03:54,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 2237 transitions. [2019-09-20 13:03:54,487 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 2237 transitions. Word has length 219 [2019-09-20 13:03:54,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:54,490 INFO L475 AbstractCegarLoop]: Abstraction has 1529 states and 2237 transitions. [2019-09-20 13:03:54,490 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:03:54,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 2237 transitions. [2019-09-20 13:03:54,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-09-20 13:03:54,505 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:54,505 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 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 13:03:54,506 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:54,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:54,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1818022278, now seen corresponding path program 1 times [2019-09-20 13:03:54,507 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:54,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:54,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:54,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:54,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:54,750 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-20 13:03:54,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:54,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:03:54,751 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:03:54,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:03:54,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:03:54,752 INFO L87 Difference]: Start difference. First operand 1529 states and 2237 transitions. Second operand 6 states. [2019-09-20 13:03:55,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:55,359 INFO L93 Difference]: Finished difference Result 3499 states and 5057 transitions. [2019-09-20 13:03:55,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:03:55,360 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2019-09-20 13:03:55,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:55,386 INFO L225 Difference]: With dead ends: 3499 [2019-09-20 13:03:55,386 INFO L226 Difference]: Without dead ends: 2995 [2019-09-20 13:03:55,390 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:03:55,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2019-09-20 13:03:55,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2984. [2019-09-20 13:03:55,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2984 states. [2019-09-20 13:03:55,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2984 states to 2984 states and 4409 transitions. [2019-09-20 13:03:55,717 INFO L78 Accepts]: Start accepts. Automaton has 2984 states and 4409 transitions. Word has length 219 [2019-09-20 13:03:55,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:55,718 INFO L475 AbstractCegarLoop]: Abstraction has 2984 states and 4409 transitions. [2019-09-20 13:03:55,718 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:03:55,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2984 states and 4409 transitions. [2019-09-20 13:03:55,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-09-20 13:03:55,749 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:55,750 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 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 13:03:55,750 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:55,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:55,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1476499884, now seen corresponding path program 1 times [2019-09-20 13:03:55,751 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:55,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:55,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:55,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:55,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:56,053 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-20 13:03:56,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:56,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:03:56,055 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:03:56,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:03:56,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:03:56,056 INFO L87 Difference]: Start difference. First operand 2984 states and 4409 transitions. Second operand 6 states. [2019-09-20 13:03:56,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:56,769 INFO L93 Difference]: Finished difference Result 6946 states and 10099 transitions. [2019-09-20 13:03:56,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:03:56,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 220 [2019-09-20 13:03:56,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:56,807 INFO L225 Difference]: With dead ends: 6946 [2019-09-20 13:03:56,807 INFO L226 Difference]: Without dead ends: 5933 [2019-09-20 13:03:56,815 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:03:56,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5933 states. [2019-09-20 13:03:57,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5933 to 5894. [2019-09-20 13:03:57,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5894 states. [2019-09-20 13:03:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 8771 transitions. [2019-09-20 13:03:57,184 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 8771 transitions. Word has length 220 [2019-09-20 13:03:57,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:57,185 INFO L475 AbstractCegarLoop]: Abstraction has 5894 states and 8771 transitions. [2019-09-20 13:03:57,185 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:03:57,186 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 8771 transitions. [2019-09-20 13:03:57,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-09-20 13:03:57,216 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:57,217 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:57,217 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:57,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:57,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1710298327, now seen corresponding path program 1 times [2019-09-20 13:03:57,218 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:57,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:57,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:57,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:57,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:57,482 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-20 13:03:57,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:57,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:03:57,483 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:03:57,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:03:57,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:03:57,484 INFO L87 Difference]: Start difference. First operand 5894 states and 8771 transitions. Second operand 9 states. [2019-09-20 13:03:57,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:57,748 INFO L93 Difference]: Finished difference Result 8045 states and 11517 transitions. [2019-09-20 13:03:57,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:03:57,749 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 221 [2019-09-20 13:03:57,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:57,782 INFO L225 Difference]: With dead ends: 8045 [2019-09-20 13:03:57,783 INFO L226 Difference]: Without dead ends: 6014 [2019-09-20 13:03:57,791 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:03:57,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2019-09-20 13:03:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 5974. [2019-09-20 13:03:58,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5974 states. [2019-09-20 13:03:58,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 8883 transitions. [2019-09-20 13:03:58,069 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 8883 transitions. Word has length 221 [2019-09-20 13:03:58,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:58,070 INFO L475 AbstractCegarLoop]: Abstraction has 5974 states and 8883 transitions. [2019-09-20 13:03:58,070 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:03:58,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 8883 transitions. [2019-09-20 13:03:58,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-09-20 13:03:58,094 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:58,094 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:58,094 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:58,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:58,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1677604962, now seen corresponding path program 1 times [2019-09-20 13:03:58,095 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:58,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:58,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:58,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:58,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-20 13:03:58,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:58,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:03:58,257 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:03:58,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:03:58,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:03:58,258 INFO L87 Difference]: Start difference. First operand 5974 states and 8883 transitions. Second operand 9 states. [2019-09-20 13:03:58,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:58,502 INFO L93 Difference]: Finished difference Result 8125 states and 11615 transitions. [2019-09-20 13:03:58,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:03:58,502 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 221 [2019-09-20 13:03:58,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:58,537 INFO L225 Difference]: With dead ends: 8125 [2019-09-20 13:03:58,537 INFO L226 Difference]: Without dead ends: 6014 [2019-09-20 13:03:58,548 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:03:58,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2019-09-20 13:03:58,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 5974. [2019-09-20 13:03:58,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5974 states. [2019-09-20 13:03:58,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 8861 transitions. [2019-09-20 13:03:58,940 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 8861 transitions. Word has length 221 [2019-09-20 13:03:58,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:58,941 INFO L475 AbstractCegarLoop]: Abstraction has 5974 states and 8861 transitions. [2019-09-20 13:03:58,941 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:03:58,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 8861 transitions. [2019-09-20 13:03:58,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-09-20 13:03:58,971 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:58,971 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:58,972 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:58,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:58,972 INFO L82 PathProgramCache]: Analyzing trace with hash 302789088, now seen corresponding path program 1 times [2019-09-20 13:03:58,972 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:58,972 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:58,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:58,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:58,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-20 13:03:59,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:59,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:03:59,146 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:03:59,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:03:59,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:03:59,147 INFO L87 Difference]: Start difference. First operand 5974 states and 8861 transitions. Second operand 6 states. [2019-09-20 13:03:59,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:59,926 INFO L93 Difference]: Finished difference Result 13936 states and 20297 transitions. [2019-09-20 13:03:59,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:03:59,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 222 [2019-09-20 13:03:59,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:59,989 INFO L225 Difference]: With dead ends: 13936 [2019-09-20 13:03:59,989 INFO L226 Difference]: Without dead ends: 11366 [2019-09-20 13:04:00,004 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:04:00,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2019-09-20 13:04:00,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 11305. [2019-09-20 13:04:00,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11305 states. [2019-09-20 13:04:00,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11305 states to 11305 states and 16959 transitions. [2019-09-20 13:04:00,829 INFO L78 Accepts]: Start accepts. Automaton has 11305 states and 16959 transitions. Word has length 222 [2019-09-20 13:04:00,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:04:00,830 INFO L475 AbstractCegarLoop]: Abstraction has 11305 states and 16959 transitions. [2019-09-20 13:04:00,830 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:04:00,830 INFO L276 IsEmpty]: Start isEmpty. Operand 11305 states and 16959 transitions. [2019-09-20 13:04:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-09-20 13:04:00,888 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:04:00,888 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:00,889 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:04:00,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:04:00,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1308839357, now seen corresponding path program 1 times [2019-09-20 13:04:00,889 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:04:00,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:04:00,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:04:00,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:04:00,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:04:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:04:01,034 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 13:04:01,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:04:01,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:04:01,035 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:04:01,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:04:01,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:04:01,036 INFO L87 Difference]: Start difference. First operand 11305 states and 16959 transitions. Second operand 3 states. [2019-09-20 13:04:01,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:04:01,561 INFO L93 Difference]: Finished difference Result 27347 states and 42211 transitions. [2019-09-20 13:04:01,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:04:01,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2019-09-20 13:04:01,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:04:01,645 INFO L225 Difference]: With dead ends: 27347 [2019-09-20 13:04:01,645 INFO L226 Difference]: Without dead ends: 16119 [2019-09-20 13:04:01,692 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 13:04:01,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16119 states. [2019-09-20 13:04:03,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16119 to 16105. [2019-09-20 13:04:03,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16105 states. [2019-09-20 13:04:03,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16105 states to 16105 states and 25199 transitions. [2019-09-20 13:04:03,195 INFO L78 Accepts]: Start accepts. Automaton has 16105 states and 25199 transitions. Word has length 224 [2019-09-20 13:04:03,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:04:03,195 INFO L475 AbstractCegarLoop]: Abstraction has 16105 states and 25199 transitions. [2019-09-20 13:04:03,196 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:04:03,196 INFO L276 IsEmpty]: Start isEmpty. Operand 16105 states and 25199 transitions. [2019-09-20 13:04:03,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-09-20 13:04:03,263 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:04:03,263 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:03,263 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:04:03,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:04:03,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1133947191, now seen corresponding path program 1 times [2019-09-20 13:04:03,264 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:04:03,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:04:03,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:04:03,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:04:03,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:04:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:04:03,416 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 13:04:03,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:04:03,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:04:03,417 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:04:03,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:04:03,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:04:03,418 INFO L87 Difference]: Start difference. First operand 16105 states and 25199 transitions. Second operand 3 states. [2019-09-20 13:04:04,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:04:04,370 INFO L93 Difference]: Finished difference Result 41363 states and 66291 transitions. [2019-09-20 13:04:04,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:04:04,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2019-09-20 13:04:04,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:04:04,476 INFO L225 Difference]: With dead ends: 41363 [2019-09-20 13:04:04,476 INFO L226 Difference]: Without dead ends: 25335 [2019-09-20 13:04:04,542 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 13:04:04,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25335 states. [2019-09-20 13:04:05,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25335 to 25321. [2019-09-20 13:04:05,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25321 states. [2019-09-20 13:04:05,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25321 states to 25321 states and 40911 transitions. [2019-09-20 13:04:05,640 INFO L78 Accepts]: Start accepts. Automaton has 25321 states and 40911 transitions. Word has length 225 [2019-09-20 13:04:05,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:04:05,641 INFO L475 AbstractCegarLoop]: Abstraction has 25321 states and 40911 transitions. [2019-09-20 13:04:05,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:04:05,641 INFO L276 IsEmpty]: Start isEmpty. Operand 25321 states and 40911 transitions. [2019-09-20 13:04:05,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-09-20 13:04:05,818 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:04:05,819 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:05,819 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:04:05,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:04:05,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1348893341, now seen corresponding path program 1 times [2019-09-20 13:04:05,820 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:04:05,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:04:05,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:04:05,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:04:05,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:04:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:04:06,199 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 13:04:06,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:04:06,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:04:06,202 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:04:06,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:04:06,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:04:06,203 INFO L87 Difference]: Start difference. First operand 25321 states and 40911 transitions. Second operand 8 states. [2019-09-20 13:04:06,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:04:06,735 INFO L93 Difference]: Finished difference Result 25321 states and 40911 transitions. [2019-09-20 13:04:06,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:04:06,735 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 226 [2019-09-20 13:04:06,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:04:06,736 INFO L225 Difference]: With dead ends: 25321 [2019-09-20 13:04:06,736 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:04:06,786 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:04:06,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:04:06,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:04:06,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:04:06,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:04:06,792 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2019-09-20 13:04:06,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:04:06,792 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:04:06,793 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:04:06,793 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:04:06,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:04:06,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 13:04:07,276 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 537 DAG size of output: 11 [2019-09-20 13:04:07,710 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 13 [2019-09-20 13:04:08,082 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 13 [2019-09-20 13:04:08,712 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-09-20 13:04:09,526 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 13