java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:13:08,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:13:08,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:13:08,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:13:08,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:13:08,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:13:08,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:13:08,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:13:08,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:13:08,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:13:08,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:13:08,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:13:08,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:13:08,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:13:08,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:13:08,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:13:08,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:13:08,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:13:08,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:13:08,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:13:08,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:13:08,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:13:08,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:13:08,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:13:08,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:13:08,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:13:08,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:13:08,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:13:08,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:13:08,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:13:08,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:13:08,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:13:08,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:13:08,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:13:08,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:13:08,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:13:08,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:13:08,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:13:08,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:13:08,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:13:08,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:13:08,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:13:08,533 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:13:08,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:13:08,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:13:08,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:13:08,535 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:13:08,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:13:08,536 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:13:08,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:13:08,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:13:08,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:13:08,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:13:08,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:13:08,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:13:08,537 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:13:08,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:13:08,537 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:13:08,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:13:08,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:13:08,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:13:08,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:13:08,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:13:08,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:08,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:13:08,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:13:08,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:13:08,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:13:08,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:13:08,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:13:08,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:13:08,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:13:08,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:13:08,840 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:13:08,842 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:13:08,842 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:13:08,843 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product22.cil.c [2019-10-15 01:13:08,914 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fde1005c/36ef3e45b1b54ae086a5ce2e46bbb08c/FLAG172f6e315 [2019-10-15 01:13:09,538 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:13:09,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product22.cil.c [2019-10-15 01:13:09,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fde1005c/36ef3e45b1b54ae086a5ce2e46bbb08c/FLAG172f6e315 [2019-10-15 01:13:09,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fde1005c/36ef3e45b1b54ae086a5ce2e46bbb08c [2019-10-15 01:13:09,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:13:09,754 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:13:09,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:09,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:13:09,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:13:09,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:09" (1/1) ... [2019-10-15 01:13:09,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18048b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:09, skipping insertion in model container [2019-10-15 01:13:09,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:09" (1/1) ... [2019-10-15 01:13:09,771 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:13:09,845 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:13:10,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:10,604 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:13:10,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:10,805 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:13:10,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10 WrapperNode [2019-10-15 01:13:10,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:10,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:13:10,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:13:10,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:13:10,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10" (1/1) ... [2019-10-15 01:13:10,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10" (1/1) ... [2019-10-15 01:13:10,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10" (1/1) ... [2019-10-15 01:13:10,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10" (1/1) ... [2019-10-15 01:13:10,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10" (1/1) ... [2019-10-15 01:13:10,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10" (1/1) ... [2019-10-15 01:13:10,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10" (1/1) ... [2019-10-15 01:13:11,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:13:11,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:13:11,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:13:11,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:13:11,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:13:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:13:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:11,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:13:11,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:13:11,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:13:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:13:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:13:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:13:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:13:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:13:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:13:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:13:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:13:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:13:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:13:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:13:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:13:11,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:13:11,087 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:13:11,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:13:11,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:13:11,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:13:11,089 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:13:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:13:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:13:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:13:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:13:11,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:13:11,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:13:11,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:13:11,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:13:11,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:13:11,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:13:11,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:13:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:13:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:13:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:13:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:13:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:13:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:13:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:13:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:13:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:13:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:13:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:13:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:13:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:13:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:13:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:13:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:13:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:13:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:13:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:13:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:13:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:13:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:13:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:13:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:13:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:13:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:13:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:13:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:13:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:13:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:13:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:13:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:13:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:13:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:13:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:13:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:13:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:13:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:13:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:13:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:13:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:13:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:13:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:13:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:13:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:13:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:13:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:13:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:13:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:13:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:13:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:13:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:13:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:13:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:13:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:13:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:13:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:13:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-15 01:13:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:13:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:13:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:13:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:13:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:13:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:13:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:13:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:13:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:13:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:13:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:13:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:13:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:13:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:13:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:13:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:13:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:13:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:13:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:13:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:13:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:13:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:13:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:13:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:13:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:13:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:13:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:13:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:13:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:13:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:13:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:13:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:13:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:13:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:13:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:13:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:13:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:13:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:13:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:13:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:13:11,128 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:13:11,129 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:13:11,129 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:13:11,129 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:13:11,129 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:13:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:13:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:13:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:13:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:13:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:13:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:13:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:13:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:13:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:13:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:13:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:13:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:13:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:13:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:13:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:13:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:13:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:13:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:13:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:13:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:13:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:13:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:13:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:13:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:13:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:13:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:13:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:13:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:13:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:13:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:13:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:13:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:13:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:13:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:13:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:13:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:13:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:13:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:13:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:13:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:13:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:13:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:13:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:13:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:13:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:13:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:13:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:13:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:13:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:13:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:13:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:13:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:13:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:13:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:13:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:13:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:13:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:13:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:13:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:13:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:13:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:13:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:13:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:13:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:13:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:13:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:13:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:13:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:13:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:13:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:13:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:13:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:13:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:13:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:13:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:13:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:13:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:13:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:13:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:13:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:13:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:13:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-15 01:13:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:13:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:13:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:13:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:13:13,069 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:13:13,070 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:13:13,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:13 BoogieIcfgContainer [2019-10-15 01:13:13,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:13:13,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:13:13,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:13:13,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:13:13,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:13:09" (1/3) ... [2019-10-15 01:13:13,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a52657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:13, skipping insertion in model container [2019-10-15 01:13:13,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10" (2/3) ... [2019-10-15 01:13:13,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a52657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:13, skipping insertion in model container [2019-10-15 01:13:13,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:13" (3/3) ... [2019-10-15 01:13:13,080 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product22.cil.c [2019-10-15 01:13:13,089 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:13:13,098 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:13:13,109 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:13:13,137 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:13:13,137 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:13:13,137 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:13:13,137 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:13:13,137 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:13:13,138 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:13:13,138 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:13:13,138 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:13:13,171 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states. [2019-10-15 01:13:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 01:13:13,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:13,197 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:13,199 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:13,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:13,203 INFO L82 PathProgramCache]: Analyzing trace with hash -262488185, now seen corresponding path program 1 times [2019-10-15 01:13:13,211 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:13,211 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068536346] [2019-10-15 01:13:13,211 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:13,212 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:13,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:13,820 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068536346] [2019-10-15 01:13:13,820 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:13,821 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:13:13,822 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481540865] [2019-10-15 01:13:13,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:13:13,832 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:13,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:13:13,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:13,850 INFO L87 Difference]: Start difference. First operand 508 states. Second operand 2 states. [2019-10-15 01:13:13,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:13,961 INFO L93 Difference]: Finished difference Result 747 states and 983 transitions. [2019-10-15 01:13:13,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:13:13,962 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-15 01:13:13,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:13,993 INFO L225 Difference]: With dead ends: 747 [2019-10-15 01:13:13,994 INFO L226 Difference]: Without dead ends: 485 [2019-10-15 01:13:14,005 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:14,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-10-15 01:13:14,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2019-10-15 01:13:14,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-10-15 01:13:14,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 643 transitions. [2019-10-15 01:13:14,107 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 643 transitions. Word has length 145 [2019-10-15 01:13:14,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:14,109 INFO L462 AbstractCegarLoop]: Abstraction has 485 states and 643 transitions. [2019-10-15 01:13:14,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:13:14,109 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 643 transitions. [2019-10-15 01:13:14,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 01:13:14,116 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:14,117 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:14,117 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:14,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:14,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1163189320, now seen corresponding path program 1 times [2019-10-15 01:13:14,118 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:14,118 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288886793] [2019-10-15 01:13:14,118 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,118 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:14,358 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:14,358 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288886793] [2019-10-15 01:13:14,359 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:14,359 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:14,359 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47521749] [2019-10-15 01:13:14,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:14,364 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:14,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:14,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:14,366 INFO L87 Difference]: Start difference. First operand 485 states and 643 transitions. Second operand 3 states. [2019-10-15 01:13:14,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:14,430 INFO L93 Difference]: Finished difference Result 730 states and 952 transitions. [2019-10-15 01:13:14,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:14,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-15 01:13:14,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:14,437 INFO L225 Difference]: With dead ends: 730 [2019-10-15 01:13:14,437 INFO L226 Difference]: Without dead ends: 488 [2019-10-15 01:13:14,440 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:14,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2019-10-15 01:13:14,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 487. [2019-10-15 01:13:14,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2019-10-15 01:13:14,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 645 transitions. [2019-10-15 01:13:14,499 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 645 transitions. Word has length 146 [2019-10-15 01:13:14,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:14,500 INFO L462 AbstractCegarLoop]: Abstraction has 487 states and 645 transitions. [2019-10-15 01:13:14,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:14,500 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 645 transitions. [2019-10-15 01:13:14,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-15 01:13:14,505 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:14,505 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:14,505 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:14,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:14,506 INFO L82 PathProgramCache]: Analyzing trace with hash -180533913, now seen corresponding path program 1 times [2019-10-15 01:13:14,506 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:14,506 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200895609] [2019-10-15 01:13:14,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:14,698 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:14,698 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200895609] [2019-10-15 01:13:14,699 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:14,699 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:14,699 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657800158] [2019-10-15 01:13:14,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:14,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:14,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:14,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:14,701 INFO L87 Difference]: Start difference. First operand 487 states and 645 transitions. Second operand 3 states. [2019-10-15 01:13:14,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:14,736 INFO L93 Difference]: Finished difference Result 952 states and 1291 transitions. [2019-10-15 01:13:14,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:14,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-10-15 01:13:14,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:14,740 INFO L225 Difference]: With dead ends: 952 [2019-10-15 01:13:14,740 INFO L226 Difference]: Without dead ends: 530 [2019-10-15 01:13:14,742 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:14,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2019-10-15 01:13:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 529. [2019-10-15 01:13:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2019-10-15 01:13:14,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 717 transitions. [2019-10-15 01:13:14,766 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 717 transitions. Word has length 158 [2019-10-15 01:13:14,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:14,767 INFO L462 AbstractCegarLoop]: Abstraction has 529 states and 717 transitions. [2019-10-15 01:13:14,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:14,767 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 717 transitions. [2019-10-15 01:13:14,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-15 01:13:14,771 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:14,771 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:14,772 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:14,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:14,772 INFO L82 PathProgramCache]: Analyzing trace with hash 541479896, now seen corresponding path program 1 times [2019-10-15 01:13:14,772 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:14,773 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641949236] [2019-10-15 01:13:14,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:14,929 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641949236] [2019-10-15 01:13:14,929 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:14,930 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:14,930 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722142483] [2019-10-15 01:13:14,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:14,931 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:14,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:14,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:14,932 INFO L87 Difference]: Start difference. First operand 529 states and 717 transitions. Second operand 3 states. [2019-10-15 01:13:14,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:14,971 INFO L93 Difference]: Finished difference Result 1075 states and 1502 transitions. [2019-10-15 01:13:14,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:14,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-15 01:13:14,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:14,977 INFO L225 Difference]: With dead ends: 1075 [2019-10-15 01:13:14,977 INFO L226 Difference]: Without dead ends: 611 [2019-10-15 01:13:14,980 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:14,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2019-10-15 01:13:15,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 610. [2019-10-15 01:13:15,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 610 states. [2019-10-15 01:13:15,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 855 transitions. [2019-10-15 01:13:15,011 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 855 transitions. Word has length 159 [2019-10-15 01:13:15,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:15,012 INFO L462 AbstractCegarLoop]: Abstraction has 610 states and 855 transitions. [2019-10-15 01:13:15,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:15,012 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 855 transitions. [2019-10-15 01:13:15,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 01:13:15,016 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:15,016 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:15,016 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:15,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:15,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1088431641, now seen corresponding path program 1 times [2019-10-15 01:13:15,017 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:15,018 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45941017] [2019-10-15 01:13:15,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:15,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:15,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:15,201 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:15,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45941017] [2019-10-15 01:13:15,202 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:15,202 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:15,202 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647233470] [2019-10-15 01:13:15,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:15,203 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:15,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:15,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:15,204 INFO L87 Difference]: Start difference. First operand 610 states and 855 transitions. Second operand 3 states. [2019-10-15 01:13:15,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:15,248 INFO L93 Difference]: Finished difference Result 1312 states and 1906 transitions. [2019-10-15 01:13:15,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:15,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-15 01:13:15,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:15,254 INFO L225 Difference]: With dead ends: 1312 [2019-10-15 01:13:15,255 INFO L226 Difference]: Without dead ends: 767 [2019-10-15 01:13:15,257 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:15,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2019-10-15 01:13:15,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 766. [2019-10-15 01:13:15,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2019-10-15 01:13:15,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1119 transitions. [2019-10-15 01:13:15,363 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1119 transitions. Word has length 160 [2019-10-15 01:13:15,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:15,364 INFO L462 AbstractCegarLoop]: Abstraction has 766 states and 1119 transitions. [2019-10-15 01:13:15,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:15,364 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1119 transitions. [2019-10-15 01:13:15,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 01:13:15,368 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:15,369 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:15,369 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:15,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:15,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1690260276, now seen corresponding path program 1 times [2019-10-15 01:13:15,370 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:15,370 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569920901] [2019-10-15 01:13:15,370 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:15,370 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:15,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-15 01:13:16,314 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569920901] [2019-10-15 01:13:16,315 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:16,315 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2019-10-15 01:13:16,316 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103071029] [2019-10-15 01:13:16,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-10-15 01:13:16,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:16,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-10-15 01:13:16,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1105, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:13:16,320 INFO L87 Difference]: Start difference. First operand 766 states and 1119 transitions. Second operand 35 states. [2019-10-15 01:13:21,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:21,490 INFO L93 Difference]: Finished difference Result 2240 states and 3350 transitions. [2019-10-15 01:13:21,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-15 01:13:21,491 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 162 [2019-10-15 01:13:21,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:21,502 INFO L225 Difference]: With dead ends: 2240 [2019-10-15 01:13:21,502 INFO L226 Difference]: Without dead ends: 1506 [2019-10-15 01:13:21,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=298, Invalid=4124, Unknown=0, NotChecked=0, Total=4422 [2019-10-15 01:13:21,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2019-10-15 01:13:21,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1239. [2019-10-15 01:13:21,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1239 states. [2019-10-15 01:13:21,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1916 transitions. [2019-10-15 01:13:21,585 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1916 transitions. Word has length 162 [2019-10-15 01:13:21,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:21,587 INFO L462 AbstractCegarLoop]: Abstraction has 1239 states and 1916 transitions. [2019-10-15 01:13:21,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-10-15 01:13:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1916 transitions. [2019-10-15 01:13:21,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 01:13:21,594 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:21,594 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:21,594 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:21,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:21,595 INFO L82 PathProgramCache]: Analyzing trace with hash 490161090, now seen corresponding path program 1 times [2019-10-15 01:13:21,595 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:21,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801686133] [2019-10-15 01:13:21,595 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:21,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:21,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:21,712 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:21,712 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801686133] [2019-10-15 01:13:21,713 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:21,713 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:21,713 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853088612] [2019-10-15 01:13:21,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:21,714 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:21,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:21,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:21,715 INFO L87 Difference]: Start difference. First operand 1239 states and 1916 transitions. Second operand 3 states. [2019-10-15 01:13:21,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:21,802 INFO L93 Difference]: Finished difference Result 3000 states and 4794 transitions. [2019-10-15 01:13:21,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:21,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-15 01:13:21,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:21,818 INFO L225 Difference]: With dead ends: 3000 [2019-10-15 01:13:21,818 INFO L226 Difference]: Without dead ends: 1840 [2019-10-15 01:13:21,824 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:21,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2019-10-15 01:13:21,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1839. [2019-10-15 01:13:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1839 states. [2019-10-15 01:13:21,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2952 transitions. [2019-10-15 01:13:21,961 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2952 transitions. Word has length 162 [2019-10-15 01:13:21,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:21,962 INFO L462 AbstractCegarLoop]: Abstraction has 1839 states and 2952 transitions. [2019-10-15 01:13:21,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:21,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2952 transitions. [2019-10-15 01:13:21,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 01:13:21,977 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:21,978 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:21,978 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:21,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:21,979 INFO L82 PathProgramCache]: Analyzing trace with hash -449351993, now seen corresponding path program 1 times [2019-10-15 01:13:21,979 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:21,979 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783755297] [2019-10-15 01:13:21,980 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:21,980 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:21,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:13:22,733 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783755297] [2019-10-15 01:13:22,733 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125882541] [2019-10-15 01:13:22,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:23,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 2446 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:13:23,246 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:23,531 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:13:23,532 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:23,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:23,973 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:24,035 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:13:24,036 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-15 01:13:24,037 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808690540] [2019-10-15 01:13:24,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:13:24,038 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:24,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:13:24,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-15 01:13:24,039 INFO L87 Difference]: Start difference. First operand 1839 states and 2952 transitions. Second operand 7 states. [2019-10-15 01:13:25,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:25,244 INFO L93 Difference]: Finished difference Result 3631 states and 5869 transitions. [2019-10-15 01:13:25,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:25,245 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2019-10-15 01:13:25,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:25,260 INFO L225 Difference]: With dead ends: 3631 [2019-10-15 01:13:25,260 INFO L226 Difference]: Without dead ends: 1843 [2019-10-15 01:13:25,270 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:13:25,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2019-10-15 01:13:25,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1843. [2019-10-15 01:13:25,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1843 states. [2019-10-15 01:13:25,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2957 transitions. [2019-10-15 01:13:25,377 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2957 transitions. Word has length 164 [2019-10-15 01:13:25,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:25,377 INFO L462 AbstractCegarLoop]: Abstraction has 1843 states and 2957 transitions. [2019-10-15 01:13:25,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:25,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2957 transitions. [2019-10-15 01:13:25,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:13:25,387 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:25,387 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:13:25,594 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:25,595 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:25,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:25,595 INFO L82 PathProgramCache]: Analyzing trace with hash 925448506, now seen corresponding path program 1 times [2019-10-15 01:13:25,596 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:25,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37341530] [2019-10-15 01:13:25,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:25,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:25,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:26,387 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:26,388 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37341530] [2019-10-15 01:13:26,388 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:26,388 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:13:26,389 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372721692] [2019-10-15 01:13:26,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:13:26,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:26,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:13:26,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:13:26,390 INFO L87 Difference]: Start difference. First operand 1843 states and 2957 transitions. Second operand 26 states. [2019-10-15 01:13:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:33,961 INFO L93 Difference]: Finished difference Result 4632 states and 7133 transitions. [2019-10-15 01:13:33,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-15 01:13:33,962 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 165 [2019-10-15 01:13:33,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:33,990 INFO L225 Difference]: With dead ends: 4632 [2019-10-15 01:13:33,990 INFO L226 Difference]: Without dead ends: 4399 [2019-10-15 01:13:33,995 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1516 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=724, Invalid=5596, Unknown=0, NotChecked=0, Total=6320 [2019-10-15 01:13:34,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4399 states. [2019-10-15 01:13:34,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4399 to 3874. [2019-10-15 01:13:34,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3874 states. [2019-10-15 01:13:34,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 6175 transitions. [2019-10-15 01:13:34,199 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 6175 transitions. Word has length 165 [2019-10-15 01:13:34,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:34,200 INFO L462 AbstractCegarLoop]: Abstraction has 3874 states and 6175 transitions. [2019-10-15 01:13:34,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:13:34,200 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 6175 transitions. [2019-10-15 01:13:34,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 01:13:34,224 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:34,224 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:13:34,225 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:34,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:34,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1756664070, now seen corresponding path program 1 times [2019-10-15 01:13:34,225 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:34,226 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432576321] [2019-10-15 01:13:34,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:34,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:34,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:13:34,418 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432576321] [2019-10-15 01:13:34,419 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:34,419 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:13:34,419 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648612471] [2019-10-15 01:13:34,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:13:34,420 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:34,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:13:34,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:13:34,420 INFO L87 Difference]: Start difference. First operand 3874 states and 6175 transitions. Second operand 9 states. [2019-10-15 01:13:34,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:34,836 INFO L93 Difference]: Finished difference Result 4618 states and 7150 transitions. [2019-10-15 01:13:34,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:13:34,837 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 166 [2019-10-15 01:13:34,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:34,874 INFO L225 Difference]: With dead ends: 4618 [2019-10-15 01:13:34,874 INFO L226 Difference]: Without dead ends: 3914 [2019-10-15 01:13:34,878 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:13:34,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2019-10-15 01:13:35,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3909. [2019-10-15 01:13:35,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3909 states. [2019-10-15 01:13:35,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 6229 transitions. [2019-10-15 01:13:35,113 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 6229 transitions. Word has length 166 [2019-10-15 01:13:35,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:35,114 INFO L462 AbstractCegarLoop]: Abstraction has 3909 states and 6229 transitions. [2019-10-15 01:13:35,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:13:35,114 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 6229 transitions. [2019-10-15 01:13:35,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 01:13:35,131 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:35,131 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:13:35,131 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:35,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:35,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1089317603, now seen corresponding path program 1 times [2019-10-15 01:13:35,132 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:35,132 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752486997] [2019-10-15 01:13:35,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:35,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:35,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:35,289 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:13:35,290 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752486997] [2019-10-15 01:13:35,290 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:35,290 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:13:35,290 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648921574] [2019-10-15 01:13:35,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:13:35,291 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:35,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:13:35,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:35,292 INFO L87 Difference]: Start difference. First operand 3909 states and 6229 transitions. Second operand 5 states. [2019-10-15 01:13:36,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:36,392 INFO L93 Difference]: Finished difference Result 7639 states and 11874 transitions. [2019-10-15 01:13:36,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:36,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2019-10-15 01:13:36,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:36,447 INFO L225 Difference]: With dead ends: 7639 [2019-10-15 01:13:36,447 INFO L226 Difference]: Without dead ends: 6922 [2019-10-15 01:13:36,453 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:13:36,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6922 states. [2019-10-15 01:13:36,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6922 to 6143. [2019-10-15 01:13:36,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6143 states. [2019-10-15 01:13:36,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6143 states to 6143 states and 9531 transitions. [2019-10-15 01:13:36,892 INFO L78 Accepts]: Start accepts. Automaton has 6143 states and 9531 transitions. Word has length 166 [2019-10-15 01:13:36,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:36,892 INFO L462 AbstractCegarLoop]: Abstraction has 6143 states and 9531 transitions. [2019-10-15 01:13:36,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:13:36,893 INFO L276 IsEmpty]: Start isEmpty. Operand 6143 states and 9531 transitions. [2019-10-15 01:13:36,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 01:13:36,922 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:36,922 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:13:36,923 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:36,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:36,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1359879993, now seen corresponding path program 1 times [2019-10-15 01:13:36,923 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:36,923 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767325450] [2019-10-15 01:13:36,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:36,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:36,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:37,113 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:13:37,113 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767325450] [2019-10-15 01:13:37,113 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:37,114 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:13:37,114 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64143205] [2019-10-15 01:13:37,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:13:37,115 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:37,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:13:37,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:13:37,115 INFO L87 Difference]: Start difference. First operand 6143 states and 9531 transitions. Second operand 10 states. [2019-10-15 01:13:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:37,393 INFO L93 Difference]: Finished difference Result 8272 states and 12291 transitions. [2019-10-15 01:13:37,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:13:37,393 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2019-10-15 01:13:37,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:37,430 INFO L225 Difference]: With dead ends: 8272 [2019-10-15 01:13:37,430 INFO L226 Difference]: Without dead ends: 6136 [2019-10-15 01:13:37,438 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:13:37,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6136 states. [2019-10-15 01:13:37,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6136 to 6132. [2019-10-15 01:13:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6132 states. [2019-10-15 01:13:37,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6132 states to 6132 states and 9503 transitions. [2019-10-15 01:13:37,787 INFO L78 Accepts]: Start accepts. Automaton has 6132 states and 9503 transitions. Word has length 166 [2019-10-15 01:13:37,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:37,789 INFO L462 AbstractCegarLoop]: Abstraction has 6132 states and 9503 transitions. [2019-10-15 01:13:37,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:13:37,789 INFO L276 IsEmpty]: Start isEmpty. Operand 6132 states and 9503 transitions. [2019-10-15 01:13:37,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 01:13:37,815 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:37,816 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:13:37,816 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:37,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:37,816 INFO L82 PathProgramCache]: Analyzing trace with hash -920786238, now seen corresponding path program 1 times [2019-10-15 01:13:37,817 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:37,817 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003411156] [2019-10-15 01:13:37,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:37,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:37,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:38,064 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:38,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003411156] [2019-10-15 01:13:38,065 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:38,065 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:13:38,065 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807204995] [2019-10-15 01:13:38,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:13:38,066 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:38,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:13:38,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:13:38,067 INFO L87 Difference]: Start difference. First operand 6132 states and 9503 transitions. Second operand 9 states. [2019-10-15 01:13:38,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:38,400 INFO L93 Difference]: Finished difference Result 6622 states and 10130 transitions. [2019-10-15 01:13:38,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:13:38,401 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 166 [2019-10-15 01:13:38,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:38,412 INFO L225 Difference]: With dead ends: 6622 [2019-10-15 01:13:38,412 INFO L226 Difference]: Without dead ends: 2353 [2019-10-15 01:13:38,428 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:13:38,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2019-10-15 01:13:38,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 2351. [2019-10-15 01:13:38,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2351 states. [2019-10-15 01:13:38,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 3610 transitions. [2019-10-15 01:13:38,541 INFO L78 Accepts]: Start accepts. Automaton has 2351 states and 3610 transitions. Word has length 166 [2019-10-15 01:13:38,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:38,541 INFO L462 AbstractCegarLoop]: Abstraction has 2351 states and 3610 transitions. [2019-10-15 01:13:38,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:13:38,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2351 states and 3610 transitions. [2019-10-15 01:13:38,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 01:13:38,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:38,551 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:13:38,551 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:38,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:38,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1797759892, now seen corresponding path program 2 times [2019-10-15 01:13:38,552 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:38,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544773256] [2019-10-15 01:13:38,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:38,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:38,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:38,926 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 01:13:38,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544773256] [2019-10-15 01:13:38,927 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:38,927 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 01:13:38,927 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975459322] [2019-10-15 01:13:38,927 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 01:13:38,928 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:38,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 01:13:38,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:13:38,928 INFO L87 Difference]: Start difference. First operand 2351 states and 3610 transitions. Second operand 24 states.