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_spec7_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:50,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:50,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:50,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:50,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:50,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:50,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:50,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:50,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:50,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:50,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:50,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:50,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:50,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:50,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:50,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:50,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:50,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:50,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:50,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:50,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:50,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:50,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:50,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:50,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:50,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:50,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:50,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:50,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:50,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:50,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:50,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:50,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:50,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:50,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:50,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:50,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:50,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:50,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:50,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:50,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:50,900 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 [2019-10-13 21:17:50,914 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:50,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:50,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:50,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:50,916 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:50,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:50,916 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:50,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:50,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:50,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:50,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:50,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:50,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:50,917 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:50,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:50,918 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:50,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:50,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:50,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:50,919 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:50,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:50,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:50,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:50,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:50,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:50,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:50,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:50,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:50,920 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 [2019-10-13 21:17:51,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:51,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:51,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:51,197 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:51,198 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:51,198 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product29.cil.c [2019-10-13 21:17:51,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/145228e3b/a7c622904e3146a298ac4a8e64e8c4d8/FLAG9f47ef99d [2019-10-13 21:17:51,888 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:51,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product29.cil.c [2019-10-13 21:17:51,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/145228e3b/a7c622904e3146a298ac4a8e64e8c4d8/FLAG9f47ef99d [2019-10-13 21:17:52,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/145228e3b/a7c622904e3146a298ac4a8e64e8c4d8 [2019-10-13 21:17:52,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:52,179 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:52,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:52,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:52,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:52,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:52" (1/1) ... [2019-10-13 21:17:52,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa59513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:52, skipping insertion in model container [2019-10-13 21:17:52,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:52" (1/1) ... [2019-10-13 21:17:52,195 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:52,280 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:52,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:53,022 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:53,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:53,241 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:53,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53 WrapperNode [2019-10-13 21:17:53,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:53,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:53,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:53,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:53,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:53,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:53,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:53,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:53,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:53,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:53,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:53,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:53,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:53,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:53,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:53,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (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 [2019-10-13 21:17:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:53,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:53,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:53,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:53,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:53,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:53,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:53,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:53,525 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:53,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:53,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:53,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:53,527 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:53,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:53,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:53,530 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:53,531 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:53,531 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:53,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:53,531 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:53,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:53,532 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:53,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:53,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:53,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:53,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:53,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:53,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:53,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:53,534 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:53,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:53,535 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:53,535 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:53,535 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:53,536 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:53,536 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:53,536 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:53,536 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:53,536 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:53,537 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:53,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:53,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:53,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:53,542 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:53,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:53,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:53,545 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:17:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:53,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:53,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:53,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:53,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:53,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:53,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:53,550 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:53,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:53,550 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:53,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:53,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:53,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:53,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:53,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:53,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:53,563 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:53,563 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:53,563 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:53,564 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:53,565 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:53,580 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:53,581 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:53,583 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:53,583 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:53,583 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:53,583 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:53,583 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:53,583 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:53,583 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:53,584 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:53,584 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:53,584 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:53,584 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:53,584 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:53,584 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:53,584 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:53,585 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:17:53,585 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:53,585 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:53,585 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:53,585 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:53,585 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:53,586 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:53,586 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:53,586 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:53,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:53,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:53,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:53,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:55,689 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:55,690 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:55,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:55 BoogieIcfgContainer [2019-10-13 21:17:55,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:55,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:55,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:55,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:55,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:52" (1/3) ... [2019-10-13 21:17:55,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a681a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:55, skipping insertion in model container [2019-10-13 21:17:55,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (2/3) ... [2019-10-13 21:17:55,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a681a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:55, skipping insertion in model container [2019-10-13 21:17:55,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:55" (3/3) ... [2019-10-13 21:17:55,700 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product29.cil.c [2019-10-13 21:17:55,710 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:55,719 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:55,731 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:55,772 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:55,773 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:55,774 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:55,777 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:55,777 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:55,777 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:55,778 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:55,778 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:55,814 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-10-13 21:17:55,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:17:55,849 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:55,850 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:55,853 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:55,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:55,859 INFO L82 PathProgramCache]: Analyzing trace with hash 2048915059, now seen corresponding path program 1 times [2019-10-13 21:17:55,868 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:55,868 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409296137] [2019-10-13 21:17:55,868 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:55,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:55,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:56,524 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409296137] [2019-10-13 21:17:56,525 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:56,525 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:56,526 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939269285] [2019-10-13 21:17:56,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:56,532 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:56,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:56,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:56,549 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 2 states. [2019-10-13 21:17:56,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:56,666 INFO L93 Difference]: Finished difference Result 837 states and 1144 transitions. [2019-10-13 21:17:56,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:56,670 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 191 [2019-10-13 21:17:56,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:56,697 INFO L225 Difference]: With dead ends: 837 [2019-10-13 21:17:56,697 INFO L226 Difference]: Without dead ends: 541 [2019-10-13 21:17:56,704 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 [2019-10-13 21:17:56,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2019-10-13 21:17:56,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2019-10-13 21:17:56,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2019-10-13 21:17:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 742 transitions. [2019-10-13 21:17:56,806 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 742 transitions. Word has length 191 [2019-10-13 21:17:56,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:56,808 INFO L462 AbstractCegarLoop]: Abstraction has 541 states and 742 transitions. [2019-10-13 21:17:56,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:56,808 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 742 transitions. [2019-10-13 21:17:56,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:17:56,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:56,813 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:56,813 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:56,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:56,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1030093926, now seen corresponding path program 1 times [2019-10-13 21:17:56,814 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:56,814 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41447477] [2019-10-13 21:17:56,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:56,815 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:56,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:57,053 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41447477] [2019-10-13 21:17:57,054 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:57,054 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:57,054 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034192108] [2019-10-13 21:17:57,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:57,061 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:57,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:57,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:57,062 INFO L87 Difference]: Start difference. First operand 541 states and 742 transitions. Second operand 3 states. [2019-10-13 21:17:57,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:57,160 INFO L93 Difference]: Finished difference Result 820 states and 1106 transitions. [2019-10-13 21:17:57,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:57,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-13 21:17:57,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:57,170 INFO L225 Difference]: With dead ends: 820 [2019-10-13 21:17:57,170 INFO L226 Difference]: Without dead ends: 544 [2019-10-13 21:17:57,178 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 [2019-10-13 21:17:57,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-10-13 21:17:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 543. [2019-10-13 21:17:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-10-13 21:17:57,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 744 transitions. [2019-10-13 21:17:57,251 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 744 transitions. Word has length 192 [2019-10-13 21:17:57,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:57,252 INFO L462 AbstractCegarLoop]: Abstraction has 543 states and 744 transitions. [2019-10-13 21:17:57,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:57,253 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 744 transitions. [2019-10-13 21:17:57,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:17:57,262 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:57,263 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:57,263 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:57,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:57,264 INFO L82 PathProgramCache]: Analyzing trace with hash -369073018, now seen corresponding path program 1 times [2019-10-13 21:17:57,264 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:57,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953620027] [2019-10-13 21:17:57,265 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:57,265 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:57,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:57,564 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953620027] [2019-10-13 21:17:57,564 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:57,565 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:57,565 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947475152] [2019-10-13 21:17:57,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:57,570 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:57,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:57,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:57,571 INFO L87 Difference]: Start difference. First operand 543 states and 744 transitions. Second operand 3 states. [2019-10-13 21:17:57,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:57,617 INFO L93 Difference]: Finished difference Result 1062 states and 1486 transitions. [2019-10-13 21:17:57,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:57,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-13 21:17:57,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:57,622 INFO L225 Difference]: With dead ends: 1062 [2019-10-13 21:17:57,622 INFO L226 Difference]: Without dead ends: 584 [2019-10-13 21:17:57,624 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 [2019-10-13 21:17:57,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-13 21:17:57,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 583. [2019-10-13 21:17:57,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2019-10-13 21:17:57,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 813 transitions. [2019-10-13 21:17:57,649 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 813 transitions. Word has length 198 [2019-10-13 21:17:57,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:57,649 INFO L462 AbstractCegarLoop]: Abstraction has 583 states and 813 transitions. [2019-10-13 21:17:57,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:57,649 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 813 transitions. [2019-10-13 21:17:57,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 21:17:57,654 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:57,654 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:57,655 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:57,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:57,655 INFO L82 PathProgramCache]: Analyzing trace with hash -436885539, now seen corresponding path program 1 times [2019-10-13 21:17:57,655 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:57,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664728679] [2019-10-13 21:17:57,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:57,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:57,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:17:58,150 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664728679] [2019-10-13 21:17:58,150 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:58,151 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:17:58,151 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061271711] [2019-10-13 21:17:58,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:17:58,152 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:58,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:17:58,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:17:58,153 INFO L87 Difference]: Start difference. First operand 583 states and 813 transitions. Second operand 19 states. [2019-10-13 21:18:02,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:02,827 INFO L93 Difference]: Finished difference Result 1984 states and 2786 transitions. [2019-10-13 21:18:02,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-10-13 21:18:02,828 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 199 [2019-10-13 21:18:02,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:02,840 INFO L225 Difference]: With dead ends: 1984 [2019-10-13 21:18:02,840 INFO L226 Difference]: Without dead ends: 1721 [2019-10-13 21:18:02,843 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=267, Invalid=2385, Unknown=0, NotChecked=0, Total=2652 [2019-10-13 21:18:02,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2019-10-13 21:18:02,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1689. [2019-10-13 21:18:02,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1689 states. [2019-10-13 21:18:02,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2374 transitions. [2019-10-13 21:18:02,986 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2374 transitions. Word has length 199 [2019-10-13 21:18:02,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:02,987 INFO L462 AbstractCegarLoop]: Abstraction has 1689 states and 2374 transitions. [2019-10-13 21:18:02,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:18:02,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2374 transitions. [2019-10-13 21:18:02,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:02,994 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:02,994 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:02,994 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:02,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:02,995 INFO L82 PathProgramCache]: Analyzing trace with hash 603543550, now seen corresponding path program 1 times [2019-10-13 21:18:02,995 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:02,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384875592] [2019-10-13 21:18:02,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:02,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:02,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:03,298 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:03,298 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384875592] [2019-10-13 21:18:03,299 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:03,299 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:18:03,299 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244977724] [2019-10-13 21:18:03,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:18:03,300 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:03,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:18:03,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:18:03,300 INFO L87 Difference]: Start difference. First operand 1689 states and 2374 transitions. Second operand 15 states. [2019-10-13 21:18:06,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:06,491 INFO L93 Difference]: Finished difference Result 2889 states and 4042 transitions. [2019-10-13 21:18:06,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-13 21:18:06,492 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 200 [2019-10-13 21:18:06,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:06,503 INFO L225 Difference]: With dead ends: 2889 [2019-10-13 21:18:06,503 INFO L226 Difference]: Without dead ends: 1785 [2019-10-13 21:18:06,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=211, Invalid=1681, Unknown=0, NotChecked=0, Total=1892 [2019-10-13 21:18:06,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2019-10-13 21:18:06,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1748. [2019-10-13 21:18:06,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1748 states. [2019-10-13 21:18:06,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2470 transitions. [2019-10-13 21:18:06,597 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2470 transitions. Word has length 200 [2019-10-13 21:18:06,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:06,598 INFO L462 AbstractCegarLoop]: Abstraction has 1748 states and 2470 transitions. [2019-10-13 21:18:06,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:18:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2470 transitions. [2019-10-13 21:18:06,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:06,605 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:06,605 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:06,606 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:06,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:06,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1383640434, now seen corresponding path program 1 times [2019-10-13 21:18:06,607 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:06,607 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856603021] [2019-10-13 21:18:06,607 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,607 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:06,923 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856603021] [2019-10-13 21:18:06,923 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:06,923 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:18:06,924 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72140854] [2019-10-13 21:18:06,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:18:06,924 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:06,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:18:06,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:18:06,925 INFO L87 Difference]: Start difference. First operand 1748 states and 2470 transitions. Second operand 18 states. [2019-10-13 21:18:07,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:07,479 INFO L93 Difference]: Finished difference Result 3105 states and 4386 transitions. [2019-10-13 21:18:07,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:18:07,480 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 200 [2019-10-13 21:18:07,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:07,493 INFO L225 Difference]: With dead ends: 3105 [2019-10-13 21:18:07,493 INFO L226 Difference]: Without dead ends: 1926 [2019-10-13 21:18:07,498 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:18:07,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2019-10-13 21:18:07,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1926. [2019-10-13 21:18:07,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1926 states. [2019-10-13 21:18:07,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2726 transitions. [2019-10-13 21:18:07,591 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2726 transitions. Word has length 200 [2019-10-13 21:18:07,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:07,592 INFO L462 AbstractCegarLoop]: Abstraction has 1926 states and 2726 transitions. [2019-10-13 21:18:07,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:18:07,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2726 transitions. [2019-10-13 21:18:07,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:07,598 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:07,599 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:07,599 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:07,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:07,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1967915888, now seen corresponding path program 1 times [2019-10-13 21:18:07,600 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:07,600 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405066823] [2019-10-13 21:18:07,600 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:07,600 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:07,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:07,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405066823] [2019-10-13 21:18:07,774 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:07,774 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:07,774 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471384323] [2019-10-13 21:18:07,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:07,775 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:07,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:07,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:07,776 INFO L87 Difference]: Start difference. First operand 1926 states and 2726 transitions. Second operand 5 states. [2019-10-13 21:18:08,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:08,872 INFO L93 Difference]: Finished difference Result 4821 states and 6878 transitions. [2019-10-13 21:18:08,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:18:08,873 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2019-10-13 21:18:08,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:08,901 INFO L225 Difference]: With dead ends: 4821 [2019-10-13 21:18:08,902 INFO L226 Difference]: Without dead ends: 4168 [2019-10-13 21:18:08,907 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 [2019-10-13 21:18:08,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4168 states. [2019-10-13 21:18:09,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4168 to 4150. [2019-10-13 21:18:09,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4150 states. [2019-10-13 21:18:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4150 states to 4150 states and 5916 transitions. [2019-10-13 21:18:09,151 INFO L78 Accepts]: Start accepts. Automaton has 4150 states and 5916 transitions. Word has length 200 [2019-10-13 21:18:09,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:09,152 INFO L462 AbstractCegarLoop]: Abstraction has 4150 states and 5916 transitions. [2019-10-13 21:18:09,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:09,152 INFO L276 IsEmpty]: Start isEmpty. Operand 4150 states and 5916 transitions. [2019-10-13 21:18:09,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:09,165 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:09,166 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:09,166 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:09,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:09,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1947578513, now seen corresponding path program 1 times [2019-10-13 21:18:09,167 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:09,167 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424788205] [2019-10-13 21:18:09,168 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:09,168 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:09,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:09,429 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424788205] [2019-10-13 21:18:09,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:09,430 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:18:09,430 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959797698] [2019-10-13 21:18:09,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:18:09,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:09,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:18:09,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:09,432 INFO L87 Difference]: Start difference. First operand 4150 states and 5916 transitions. Second operand 7 states. [2019-10-13 21:18:11,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:11,356 INFO L93 Difference]: Finished difference Result 13937 states and 21260 transitions. [2019-10-13 21:18:11,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:11,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2019-10-13 21:18:11,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:11,429 INFO L225 Difference]: With dead ends: 13937 [2019-10-13 21:18:11,430 INFO L226 Difference]: Without dead ends: 10728 [2019-10-13 21:18:11,452 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:11,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10728 states. [2019-10-13 21:18:12,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10728 to 10722. [2019-10-13 21:18:12,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10722 states. [2019-10-13 21:18:12,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10722 states to 10722 states and 16164 transitions. [2019-10-13 21:18:12,106 INFO L78 Accepts]: Start accepts. Automaton has 10722 states and 16164 transitions. Word has length 200 [2019-10-13 21:18:12,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:12,106 INFO L462 AbstractCegarLoop]: Abstraction has 10722 states and 16164 transitions. [2019-10-13 21:18:12,107 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:18:12,107 INFO L276 IsEmpty]: Start isEmpty. Operand 10722 states and 16164 transitions. [2019-10-13 21:18:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 21:18:12,116 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:12,116 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:12,116 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:12,117 INFO L82 PathProgramCache]: Analyzing trace with hash 212373713, now seen corresponding path program 1 times [2019-10-13 21:18:12,117 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:12,117 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121441272] [2019-10-13 21:18:12,117 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:12,117 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:12,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:12,664 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:12,665 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121441272] [2019-10-13 21:18:12,665 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:12,665 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 21:18:12,665 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683854834] [2019-10-13 21:18:12,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 21:18:12,666 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:12,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 21:18:12,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-10-13 21:18:12,667 INFO L87 Difference]: Start difference. First operand 10722 states and 16164 transitions. Second operand 28 states. [2019-10-13 21:18:14,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:14,522 INFO L93 Difference]: Finished difference Result 20934 states and 32261 transitions. [2019-10-13 21:18:14,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-13 21:18:14,523 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 201 [2019-10-13 21:18:14,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:14,590 INFO L225 Difference]: With dead ends: 20934 [2019-10-13 21:18:14,590 INFO L226 Difference]: Without dead ends: 11153 [2019-10-13 21:18:14,638 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:18:14,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11153 states. [2019-10-13 21:18:15,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11153 to 11132. [2019-10-13 21:18:15,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11132 states. [2019-10-13 21:18:15,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11132 states to 11132 states and 16776 transitions. [2019-10-13 21:18:15,147 INFO L78 Accepts]: Start accepts. Automaton has 11132 states and 16776 transitions. Word has length 201 [2019-10-13 21:18:15,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:15,149 INFO L462 AbstractCegarLoop]: Abstraction has 11132 states and 16776 transitions. [2019-10-13 21:18:15,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 21:18:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 11132 states and 16776 transitions. [2019-10-13 21:18:15,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-13 21:18:15,159 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:15,160 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:15,160 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:15,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:15,160 INFO L82 PathProgramCache]: Analyzing trace with hash -469886620, now seen corresponding path program 1 times [2019-10-13 21:18:15,161 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:15,161 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547602637] [2019-10-13 21:18:15,161 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:15,161 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:15,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:15,400 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:15,401 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547602637] [2019-10-13 21:18:15,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:15,402 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:18:15,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466891470] [2019-10-13 21:18:15,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:18:15,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:15,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:18:15,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:18:15,405 INFO L87 Difference]: Start difference. First operand 11132 states and 16776 transitions. Second operand 10 states. [2019-10-13 21:18:15,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:15,642 INFO L93 Difference]: Finished difference Result 11255 states and 16978 transitions. [2019-10-13 21:18:15,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:18:15,642 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2019-10-13 21:18:15,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:15,704 INFO L225 Difference]: With dead ends: 11255 [2019-10-13 21:18:15,704 INFO L226 Difference]: Without dead ends: 11252 [2019-10-13 21:18:15,830 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:18:15,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2019-10-13 21:18:16,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 11252. [2019-10-13 21:18:16,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11252 states. [2019-10-13 21:18:16,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11252 states to 11252 states and 16936 transitions. [2019-10-13 21:18:16,313 INFO L78 Accepts]: Start accepts. Automaton has 11252 states and 16936 transitions. Word has length 205 [2019-10-13 21:18:16,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:16,313 INFO L462 AbstractCegarLoop]: Abstraction has 11252 states and 16936 transitions. [2019-10-13 21:18:16,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:18:16,314 INFO L276 IsEmpty]: Start isEmpty. Operand 11252 states and 16936 transitions. [2019-10-13 21:18:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 21:18:16,324 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:16,324 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:16,324 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:16,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:16,325 INFO L82 PathProgramCache]: Analyzing trace with hash -208674281, now seen corresponding path program 1 times [2019-10-13 21:18:16,325 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:16,325 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43622510] [2019-10-13 21:18:16,325 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:16,325 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:16,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:16,487 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:16,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43622510] [2019-10-13 21:18:16,488 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:16,488 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:16,488 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185913027] [2019-10-13 21:18:16,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:16,489 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:16,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:16,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:16,489 INFO L87 Difference]: Start difference. First operand 11252 states and 16936 transitions. Second operand 5 states. [2019-10-13 21:18:16,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:16,810 INFO L93 Difference]: Finished difference Result 21960 states and 33556 transitions. [2019-10-13 21:18:16,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:18:16,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2019-10-13 21:18:16,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:16,866 INFO L225 Difference]: With dead ends: 21960 [2019-10-13 21:18:16,866 INFO L226 Difference]: Without dead ends: 11649 [2019-10-13 21:18:16,911 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:16,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11649 states. [2019-10-13 21:18:17,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11649 to 11452. [2019-10-13 21:18:17,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11452 states. [2019-10-13 21:18:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11452 states to 11452 states and 17224 transitions. [2019-10-13 21:18:17,543 INFO L78 Accepts]: Start accepts. Automaton has 11452 states and 17224 transitions. Word has length 210 [2019-10-13 21:18:17,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:17,544 INFO L462 AbstractCegarLoop]: Abstraction has 11452 states and 17224 transitions. [2019-10-13 21:18:17,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 11452 states and 17224 transitions. [2019-10-13 21:18:17,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 21:18:17,554 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:17,555 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:17,555 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:17,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:17,555 INFO L82 PathProgramCache]: Analyzing trace with hash 952522831, now seen corresponding path program 1 times [2019-10-13 21:18:17,555 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:17,556 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051212638] [2019-10-13 21:18:17,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:17,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:17,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:17,822 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:17,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051212638] [2019-10-13 21:18:17,823 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:17,824 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:18:17,824 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350624281] [2019-10-13 21:18:17,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:18:17,825 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:17,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:18:17,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:17,826 INFO L87 Difference]: Start difference. First operand 11452 states and 17224 transitions. Second operand 13 states. [2019-10-13 21:18:18,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:18,643 INFO L93 Difference]: Finished difference Result 21991 states and 33124 transitions. [2019-10-13 21:18:18,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:18,644 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 210 [2019-10-13 21:18:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:18,698 INFO L225 Difference]: With dead ends: 21991 [2019-10-13 21:18:18,698 INFO L226 Difference]: Without dead ends: 11480 [2019-10-13 21:18:18,726 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:18:18,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11480 states. [2019-10-13 21:18:19,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11480 to 11440. [2019-10-13 21:18:19,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11440 states. [2019-10-13 21:18:19,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11440 states to 11440 states and 17203 transitions. [2019-10-13 21:18:19,381 INFO L78 Accepts]: Start accepts. Automaton has 11440 states and 17203 transitions. Word has length 210 [2019-10-13 21:18:19,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:19,382 INFO L462 AbstractCegarLoop]: Abstraction has 11440 states and 17203 transitions. [2019-10-13 21:18:19,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:18:19,382 INFO L276 IsEmpty]: Start isEmpty. Operand 11440 states and 17203 transitions. [2019-10-13 21:18:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-13 21:18:19,393 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:19,393 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:19,393 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:19,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:19,394 INFO L82 PathProgramCache]: Analyzing trace with hash 414900094, now seen corresponding path program 1 times [2019-10-13 21:18:19,394 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:19,394 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266573194] [2019-10-13 21:18:19,394 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:19,394 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:19,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:19,528 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266573194] [2019-10-13 21:18:19,528 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:19,528 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:19,528 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758493934] [2019-10-13 21:18:19,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:19,529 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:19,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:19,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:19,530 INFO L87 Difference]: Start difference. First operand 11440 states and 17203 transitions. Second operand 5 states. [2019-10-13 21:18:19,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:19,796 INFO L93 Difference]: Finished difference Result 19784 states and 29582 transitions. [2019-10-13 21:18:19,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:18:19,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2019-10-13 21:18:19,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:19,840 INFO L225 Difference]: With dead ends: 19784 [2019-10-13 21:18:19,840 INFO L226 Difference]: Without dead ends: 9216 [2019-10-13 21:18:19,868 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:19,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9216 states. [2019-10-13 21:18:20,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9216 to 9206. [2019-10-13 21:18:20,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9206 states. [2019-10-13 21:18:20,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9206 states to 9206 states and 13770 transitions. [2019-10-13 21:18:20,262 INFO L78 Accepts]: Start accepts. Automaton has 9206 states and 13770 transitions. Word has length 212 [2019-10-13 21:18:20,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:20,263 INFO L462 AbstractCegarLoop]: Abstraction has 9206 states and 13770 transitions. [2019-10-13 21:18:20,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 9206 states and 13770 transitions. [2019-10-13 21:18:20,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 21:18:20,270 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:20,270 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:20,270 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:20,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:20,271 INFO L82 PathProgramCache]: Analyzing trace with hash -438718559, now seen corresponding path program 1 times [2019-10-13 21:18:20,271 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:20,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195681670] [2019-10-13 21:18:20,272 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:20,272 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:20,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:20,574 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:20,574 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195681670] [2019-10-13 21:18:20,574 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:20,574 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:18:20,575 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107416214] [2019-10-13 21:18:20,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:18:20,576 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:20,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:18:20,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:20,576 INFO L87 Difference]: Start difference. First operand 9206 states and 13770 transitions. Second operand 6 states. [2019-10-13 21:18:21,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:21,316 INFO L93 Difference]: Finished difference Result 26844 states and 40607 transitions. [2019-10-13 21:18:21,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:18:21,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2019-10-13 21:18:21,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:21,403 INFO L225 Difference]: With dead ends: 26844 [2019-10-13 21:18:21,403 INFO L226 Difference]: Without dead ends: 18541 [2019-10-13 21:18:21,434 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:18:21,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18541 states. [2019-10-13 21:18:22,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18541 to 18189. [2019-10-13 21:18:22,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18189 states. [2019-10-13 21:18:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18189 states to 18189 states and 27203 transitions. [2019-10-13 21:18:22,217 INFO L78 Accepts]: Start accepts. Automaton has 18189 states and 27203 transitions. Word has length 211 [2019-10-13 21:18:22,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:22,218 INFO L462 AbstractCegarLoop]: Abstraction has 18189 states and 27203 transitions. [2019-10-13 21:18:22,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:18:22,218 INFO L276 IsEmpty]: Start isEmpty. Operand 18189 states and 27203 transitions. [2019-10-13 21:18:22,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-13 21:18:22,235 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:22,235 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:22,235 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:22,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:22,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1807527184, now seen corresponding path program 1 times [2019-10-13 21:18:22,236 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:22,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343121669] [2019-10-13 21:18:22,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:22,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:22,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat