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_spec9_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:19:25,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:19:25,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:19:25,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:19:25,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:19:25,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:19:25,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:19:25,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:19:25,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:19:25,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:19:25,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:19:25,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:19:25,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:19:25,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:19:25,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:19:25,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:19:25,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:19:25,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:19:25,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:19:25,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:19:25,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:19:25,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:19:25,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:19:25,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:19:25,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:19:25,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:19:25,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:19:25,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:19:25,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:19:25,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:19:25,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:19:25,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:19:25,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:19:25,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:19:25,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:19:25,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:19:25,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:19:25,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:19:25,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:19:25,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:19:25,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:19:25,767 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 21:19:25,781 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:19:25,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:19:25,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:19:25,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:19:25,783 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:19:25,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:19:25,783 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:19:25,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:19:25,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:19:25,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:19:25,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:19:25,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:19:25,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:19:25,784 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:19:25,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:19:25,785 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:19:25,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:19:25,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:19:25,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:19:25,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:19:25,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:19:25,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:19:25,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:19:25,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:19:25,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:19:25,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:19:25,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:19:25,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:19:25,791 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 21:19:26,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:19:26,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:19:26,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:19:26,119 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:19:26,119 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:19:26,120 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product35.cil.c [2019-10-13 21:19:26,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c9fbaebc/42330858331542698ceb2a090e5bb6c6/FLAGed9f570ef [2019-10-13 21:19:26,892 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:19:26,893 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product35.cil.c [2019-10-13 21:19:26,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c9fbaebc/42330858331542698ceb2a090e5bb6c6/FLAGed9f570ef [2019-10-13 21:19:27,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c9fbaebc/42330858331542698ceb2a090e5bb6c6 [2019-10-13 21:19:27,041 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:19:27,043 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:19:27,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:19:27,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:19:27,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:19:27,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:19:27" (1/1) ... [2019-10-13 21:19:27,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18136a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:27, skipping insertion in model container [2019-10-13 21:19:27,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:19:27" (1/1) ... [2019-10-13 21:19:27,061 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:19:27,133 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:19:27,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:19:27,948 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:19:28,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:19:28,209 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:19:28,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:28 WrapperNode [2019-10-13 21:19:28,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:19:28,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:19:28,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:19:28,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:19:28,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:28" (1/1) ... [2019-10-13 21:19:28,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:28" (1/1) ... [2019-10-13 21:19:28,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:28" (1/1) ... [2019-10-13 21:19:28,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:28" (1/1) ... [2019-10-13 21:19:28,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:28" (1/1) ... [2019-10-13 21:19:28,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:28" (1/1) ... [2019-10-13 21:19:28,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:28" (1/1) ... [2019-10-13 21:19:28,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:19:28,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:19:28,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:19:28,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:19:28,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:28" (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 21:19:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:19:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:19:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:19:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:19:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:19:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:19:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:19:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:19:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:19:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:19:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:19:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:19:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:19:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:19:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:19:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:19:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:19:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:19:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:19:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:19:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:19:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:19:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:19:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:19:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:19:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:19:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:19:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:19:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:19:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:19:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:19:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:19:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:19:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:19:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:19:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:19:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:19:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:19:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:19:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:19:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:19:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:19:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:19:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:19:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:19:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:19:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:19:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:19:28,537 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:19:28,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:19:28,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:19:28,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:19:28,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:19:28,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:19:28,538 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:19:28,538 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:19:28,538 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:19:28,538 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:19:28,538 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:19:28,538 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:19:28,538 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:19:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:19:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:19:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:19:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:19:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:19:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 21:19:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 21:19:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:19:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:19:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:19:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:19:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:19:28,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:19:28,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:19:28,541 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:19:28,541 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:19:28,541 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:19:28,541 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:19:28,541 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:19:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:19:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:19:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:19:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:19:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:19:28,542 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:19:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:19:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:19:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:19:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:19:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:19:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:19:28,543 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:19:28,544 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:19:28,544 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:19:28,544 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:19:28,544 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:19:28,544 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:19:28,544 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:19:28,544 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:19:28,545 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:19:28,545 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:19:28,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:19:28,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:19:28,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:19:28,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:19:28,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:19:28,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:19:28,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:19:28,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:19:28,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:19:28,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:19:28,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:19:28,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:19:28,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:19:28,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:19:28,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:19:28,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:19:28,547 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:19:28,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:19:28,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:19:28,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:19:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:19:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:19:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:19:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:19:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:19:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:19:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:19:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:19:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:19:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:19:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:19:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:19:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:19:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:19:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:19:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:19:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:19:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:19:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:19:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:19:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:19:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:19:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:19:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:19:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:19:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:19:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:19:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:19:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:19:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:19:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:19:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:19:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:19:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:19:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:19:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:19:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:19:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:19:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:19:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:19:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:19:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:19:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:19:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:19:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:19:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:19:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:19:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:19:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:19:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:19:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:19:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:19:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:19:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:19:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:19:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:19:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:19:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:19:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:19:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:19:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:19:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:19:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:19:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:19:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:19:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:19:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:19:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:19:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:19:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:19:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:19:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:19:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:19:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:19:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:19:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:19:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:19:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:19:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:19:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:19:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:19:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:19:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:19:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:19:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:19:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:19:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 21:19:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 21:19:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:19:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:19:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:19:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:19:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:19:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:19:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:19:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:19:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:19:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:19:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:19:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:19:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:19:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:19:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:19:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:19:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:19:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:19:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:19:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:19:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:19:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:19:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:19:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:19:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:19:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:19:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:19:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:19:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:19:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:19:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:19:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:19:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:19:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:19:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:19:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:19:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:19:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:19:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:19:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:19:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:19:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:19:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:19:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:19:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:19:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:19:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:19:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:19:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:19:30,845 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:19:30,846 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:19:30,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:19:30 BoogieIcfgContainer [2019-10-13 21:19:30,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:19:30,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:19:30,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:19:30,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:19:30,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:19:27" (1/3) ... [2019-10-13 21:19:30,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d02fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:19:30, skipping insertion in model container [2019-10-13 21:19:30,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:28" (2/3) ... [2019-10-13 21:19:30,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d02fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:19:30, skipping insertion in model container [2019-10-13 21:19:30,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:19:30" (3/3) ... [2019-10-13 21:19:30,861 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product35.cil.c [2019-10-13 21:19:30,872 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:19:30,882 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:19:30,893 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:19:30,932 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:19:30,932 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:19:30,933 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:19:30,933 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:19:30,933 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:19:30,933 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:19:30,933 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:19:30,933 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:19:30,976 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states. [2019-10-13 21:19:31,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 21:19:31,011 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:31,012 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:31,015 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:31,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:31,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1796376026, now seen corresponding path program 1 times [2019-10-13 21:19:31,032 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:31,032 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292299692] [2019-10-13 21:19:31,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:31,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:31,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:19:31,770 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292299692] [2019-10-13 21:19:31,771 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:31,771 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:19:31,771 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038703823] [2019-10-13 21:19:31,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:19:31,778 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:31,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:19:31,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:19:31,796 INFO L87 Difference]: Start difference. First operand 687 states. Second operand 2 states. [2019-10-13 21:19:31,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:31,881 INFO L93 Difference]: Finished difference Result 1049 states and 1409 transitions. [2019-10-13 21:19:31,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:19:31,882 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 167 [2019-10-13 21:19:31,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:31,908 INFO L225 Difference]: With dead ends: 1049 [2019-10-13 21:19:31,908 INFO L226 Difference]: Without dead ends: 658 [2019-10-13 21:19:31,916 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 21:19:31,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2019-10-13 21:19:32,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2019-10-13 21:19:32,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2019-10-13 21:19:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 890 transitions. [2019-10-13 21:19:32,026 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 890 transitions. Word has length 167 [2019-10-13 21:19:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:32,029 INFO L462 AbstractCegarLoop]: Abstraction has 658 states and 890 transitions. [2019-10-13 21:19:32,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:19:32,029 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 890 transitions. [2019-10-13 21:19:32,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 21:19:32,034 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:32,034 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:32,034 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:32,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:32,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1669127173, now seen corresponding path program 1 times [2019-10-13 21:19:32,035 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:32,035 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533972929] [2019-10-13 21:19:32,036 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:32,036 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:32,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:32,368 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:19:32,369 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533972929] [2019-10-13 21:19:32,369 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:32,369 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:32,370 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100234289] [2019-10-13 21:19:32,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:32,377 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:32,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:32,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:32,378 INFO L87 Difference]: Start difference. First operand 658 states and 890 transitions. Second operand 3 states. [2019-10-13 21:19:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:32,475 INFO L93 Difference]: Finished difference Result 1032 states and 1374 transitions. [2019-10-13 21:19:32,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:32,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-13 21:19:32,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:32,482 INFO L225 Difference]: With dead ends: 1032 [2019-10-13 21:19:32,482 INFO L226 Difference]: Without dead ends: 661 [2019-10-13 21:19:32,485 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 21:19:32,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2019-10-13 21:19:32,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 660. [2019-10-13 21:19:32,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2019-10-13 21:19:32,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 892 transitions. [2019-10-13 21:19:32,525 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 892 transitions. Word has length 168 [2019-10-13 21:19:32,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:32,526 INFO L462 AbstractCegarLoop]: Abstraction has 660 states and 892 transitions. [2019-10-13 21:19:32,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:32,526 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 892 transitions. [2019-10-13 21:19:32,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 21:19:32,530 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:32,531 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:32,531 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:32,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:32,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1780408052, now seen corresponding path program 1 times [2019-10-13 21:19:32,532 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:32,532 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854861828] [2019-10-13 21:19:32,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:32,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:32,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:19:32,709 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854861828] [2019-10-13 21:19:32,709 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:32,709 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:32,709 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503728552] [2019-10-13 21:19:32,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:32,714 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:32,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:32,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:32,714 INFO L87 Difference]: Start difference. First operand 660 states and 892 transitions. Second operand 3 states. [2019-10-13 21:19:32,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:32,792 INFO L93 Difference]: Finished difference Result 1300 states and 1788 transitions. [2019-10-13 21:19:32,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:32,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-13 21:19:32,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:32,807 INFO L225 Difference]: With dead ends: 1300 [2019-10-13 21:19:32,807 INFO L226 Difference]: Without dead ends: 705 [2019-10-13 21:19:32,811 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 21:19:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2019-10-13 21:19:32,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 704. [2019-10-13 21:19:32,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2019-10-13 21:19:32,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 967 transitions. [2019-10-13 21:19:32,880 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 967 transitions. Word has length 180 [2019-10-13 21:19:32,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:32,881 INFO L462 AbstractCegarLoop]: Abstraction has 704 states and 967 transitions. [2019-10-13 21:19:32,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 967 transitions. [2019-10-13 21:19:32,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-13 21:19:32,897 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:32,897 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:32,897 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:32,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:32,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1102871673, now seen corresponding path program 1 times [2019-10-13 21:19:32,899 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:32,899 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328189613] [2019-10-13 21:19:32,899 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:32,900 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:32,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:19:33,259 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328189613] [2019-10-13 21:19:33,259 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:33,259 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:33,260 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164860912] [2019-10-13 21:19:33,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:33,262 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:33,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:33,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:33,263 INFO L87 Difference]: Start difference. First operand 704 states and 967 transitions. Second operand 3 states. [2019-10-13 21:19:33,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:33,311 INFO L93 Difference]: Finished difference Result 1429 states and 2008 transitions. [2019-10-13 21:19:33,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:33,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-13 21:19:33,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:33,321 INFO L225 Difference]: With dead ends: 1429 [2019-10-13 21:19:33,322 INFO L226 Difference]: Without dead ends: 790 [2019-10-13 21:19:33,325 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 21:19:33,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-13 21:19:33,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 789. [2019-10-13 21:19:33,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-13 21:19:33,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1111 transitions. [2019-10-13 21:19:33,360 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1111 transitions. Word has length 181 [2019-10-13 21:19:33,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:33,361 INFO L462 AbstractCegarLoop]: Abstraction has 789 states and 1111 transitions. [2019-10-13 21:19:33,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:33,361 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1111 transitions. [2019-10-13 21:19:33,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-13 21:19:33,365 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:33,365 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:33,366 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:33,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:33,366 INFO L82 PathProgramCache]: Analyzing trace with hash -441168396, now seen corresponding path program 1 times [2019-10-13 21:19:33,366 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:33,367 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837092075] [2019-10-13 21:19:33,367 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:33,368 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:33,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:33,552 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:19:33,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837092075] [2019-10-13 21:19:33,553 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:33,553 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:33,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362349505] [2019-10-13 21:19:33,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:33,554 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:33,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:33,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:33,555 INFO L87 Difference]: Start difference. First operand 789 states and 1111 transitions. Second operand 3 states. [2019-10-13 21:19:33,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:33,606 INFO L93 Difference]: Finished difference Result 1678 states and 2430 transitions. [2019-10-13 21:19:33,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:33,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2019-10-13 21:19:33,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:33,613 INFO L225 Difference]: With dead ends: 1678 [2019-10-13 21:19:33,613 INFO L226 Difference]: Without dead ends: 954 [2019-10-13 21:19:33,615 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 21:19:33,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2019-10-13 21:19:33,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 953. [2019-10-13 21:19:33,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2019-10-13 21:19:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1387 transitions. [2019-10-13 21:19:33,665 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1387 transitions. Word has length 182 [2019-10-13 21:19:33,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:33,665 INFO L462 AbstractCegarLoop]: Abstraction has 953 states and 1387 transitions. [2019-10-13 21:19:33,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:33,665 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1387 transitions. [2019-10-13 21:19:33,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-13 21:19:33,670 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:33,670 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:33,671 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:33,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:33,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1717289379, now seen corresponding path program 1 times [2019-10-13 21:19:33,671 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:33,672 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740315343] [2019-10-13 21:19:33,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:33,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:33,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:19:33,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740315343] [2019-10-13 21:19:33,981 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:33,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:33,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635999100] [2019-10-13 21:19:33,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:33,982 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:33,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:33,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:33,983 INFO L87 Difference]: Start difference. First operand 953 states and 1387 transitions. Second operand 3 states. [2019-10-13 21:19:34,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:34,046 INFO L93 Difference]: Finished difference Result 1452 states and 2059 transitions. [2019-10-13 21:19:34,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:34,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-10-13 21:19:34,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:34,056 INFO L225 Difference]: With dead ends: 1452 [2019-10-13 21:19:34,056 INFO L226 Difference]: Without dead ends: 1094 [2019-10-13 21:19:34,058 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 21:19:34,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2019-10-13 21:19:34,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1093. [2019-10-13 21:19:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2019-10-13 21:19:34,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1584 transitions. [2019-10-13 21:19:34,113 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1584 transitions. Word has length 184 [2019-10-13 21:19:34,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:34,115 INFO L462 AbstractCegarLoop]: Abstraction has 1093 states and 1584 transitions. [2019-10-13 21:19:34,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:34,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1584 transitions. [2019-10-13 21:19:34,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2019-10-13 21:19:34,130 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:34,131 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 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 21:19:34,131 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:34,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:34,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1766872220, now seen corresponding path program 1 times [2019-10-13 21:19:34,132 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:34,132 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788714856] [2019-10-13 21:19:34,133 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:34,133 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:34,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:34,459 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:19:34,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788714856] [2019-10-13 21:19:34,459 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:34,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:19:34,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932759441] [2019-10-13 21:19:34,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:19:34,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:34,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:19:34,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:19:34,462 INFO L87 Difference]: Start difference. First operand 1093 states and 1584 transitions. Second operand 6 states. [2019-10-13 21:19:35,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:35,470 INFO L93 Difference]: Finished difference Result 2597 states and 3733 transitions. [2019-10-13 21:19:35,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:19:35,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 340 [2019-10-13 21:19:35,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:35,492 INFO L225 Difference]: With dead ends: 2597 [2019-10-13 21:19:35,493 INFO L226 Difference]: Without dead ends: 2137 [2019-10-13 21:19:35,495 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 21:19:35,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2019-10-13 21:19:35,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 2126. [2019-10-13 21:19:35,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2126 states. [2019-10-13 21:19:35,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 3110 transitions. [2019-10-13 21:19:35,632 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 3110 transitions. Word has length 340 [2019-10-13 21:19:35,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:35,634 INFO L462 AbstractCegarLoop]: Abstraction has 2126 states and 3110 transitions. [2019-10-13 21:19:35,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:19:35,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 3110 transitions. [2019-10-13 21:19:35,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2019-10-13 21:19:35,658 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:35,659 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 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 21:19:35,659 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:35,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:35,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1623250226, now seen corresponding path program 1 times [2019-10-13 21:19:35,660 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:35,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357193211] [2019-10-13 21:19:35,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:35,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:35,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:19:36,058 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357193211] [2019-10-13 21:19:36,059 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:36,059 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:19:36,059 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70702125] [2019-10-13 21:19:36,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:19:36,061 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:36,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:19:36,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:19:36,062 INFO L87 Difference]: Start difference. First operand 2126 states and 3110 transitions. Second operand 11 states. [2019-10-13 21:19:36,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:36,580 INFO L93 Difference]: Finished difference Result 3043 states and 4319 transitions. [2019-10-13 21:19:36,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:19:36,581 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 341 [2019-10-13 21:19:36,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:36,595 INFO L225 Difference]: With dead ends: 3043 [2019-10-13 21:19:36,595 INFO L226 Difference]: Without dead ends: 2100 [2019-10-13 21:19:36,600 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:19:36,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2019-10-13 21:19:36,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2096. [2019-10-13 21:19:36,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2019-10-13 21:19:36,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 3059 transitions. [2019-10-13 21:19:36,732 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 3059 transitions. Word has length 341 [2019-10-13 21:19:36,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:36,735 INFO L462 AbstractCegarLoop]: Abstraction has 2096 states and 3059 transitions. [2019-10-13 21:19:36,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:19:36,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 3059 transitions. [2019-10-13 21:19:36,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2019-10-13 21:19:36,753 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:36,754 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:19:36,754 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:36,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:36,755 INFO L82 PathProgramCache]: Analyzing trace with hash -780703830, now seen corresponding path program 1 times [2019-10-13 21:19:36,755 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:36,755 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873771910] [2019-10-13 21:19:36,755 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:36,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:36,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:37,062 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2019-10-13 21:19:37,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873771910] [2019-10-13 21:19:37,063 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:37,063 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:37,064 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332128413] [2019-10-13 21:19:37,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:37,066 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:37,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:37,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:37,066 INFO L87 Difference]: Start difference. First operand 2096 states and 3059 transitions. Second operand 3 states. [2019-10-13 21:19:37,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:37,186 INFO L93 Difference]: Finished difference Result 4761 states and 7127 transitions. [2019-10-13 21:19:37,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:37,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 383 [2019-10-13 21:19:37,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:37,207 INFO L225 Difference]: With dead ends: 4761 [2019-10-13 21:19:37,207 INFO L226 Difference]: Without dead ends: 2730 [2019-10-13 21:19:37,217 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 21:19:37,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2019-10-13 21:19:37,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 2728. [2019-10-13 21:19:37,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2728 states. [2019-10-13 21:19:37,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2728 states to 2728 states and 4123 transitions. [2019-10-13 21:19:37,367 INFO L78 Accepts]: Start accepts. Automaton has 2728 states and 4123 transitions. Word has length 383 [2019-10-13 21:19:37,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:37,368 INFO L462 AbstractCegarLoop]: Abstraction has 2728 states and 4123 transitions. [2019-10-13 21:19:37,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:37,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2728 states and 4123 transitions. [2019-10-13 21:19:37,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2019-10-13 21:19:37,393 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:37,394 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:19:37,394 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:37,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:37,395 INFO L82 PathProgramCache]: Analyzing trace with hash 203975663, now seen corresponding path program 1 times [2019-10-13 21:19:37,395 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:37,395 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363563446] [2019-10-13 21:19:37,395 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:37,396 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:37,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:37,708 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2019-10-13 21:19:37,709 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363563446] [2019-10-13 21:19:37,710 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:37,710 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:37,710 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109245717] [2019-10-13 21:19:37,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:37,711 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:37,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:37,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:37,712 INFO L87 Difference]: Start difference. First operand 2728 states and 4123 transitions. Second operand 3 states. [2019-10-13 21:19:37,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:37,864 INFO L93 Difference]: Finished difference Result 6609 states and 10239 transitions. [2019-10-13 21:19:37,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:37,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 384 [2019-10-13 21:19:37,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:37,887 INFO L225 Difference]: With dead ends: 6609 [2019-10-13 21:19:37,887 INFO L226 Difference]: Without dead ends: 3946 [2019-10-13 21:19:37,903 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 21:19:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2019-10-13 21:19:38,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3944. [2019-10-13 21:19:38,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3944 states. [2019-10-13 21:19:38,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 6155 transitions. [2019-10-13 21:19:38,110 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 6155 transitions. Word has length 384 [2019-10-13 21:19:38,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:38,111 INFO L462 AbstractCegarLoop]: Abstraction has 3944 states and 6155 transitions. [2019-10-13 21:19:38,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:38,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 6155 transitions. [2019-10-13 21:19:38,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2019-10-13 21:19:38,136 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:38,138 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:19:38,138 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:38,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:38,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1726372166, now seen corresponding path program 1 times [2019-10-13 21:19:38,139 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:38,139 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971941028] [2019-10-13 21:19:38,139 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:38,139 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:38,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:38,407 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2019-10-13 21:19:38,407 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971941028] [2019-10-13 21:19:38,408 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:38,408 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:38,408 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545264877] [2019-10-13 21:19:38,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:38,409 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:38,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:38,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:38,410 INFO L87 Difference]: Start difference. First operand 3944 states and 6155 transitions. Second operand 3 states. [2019-10-13 21:19:38,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:38,695 INFO L93 Difference]: Finished difference Result 10161 states and 16175 transitions. [2019-10-13 21:19:38,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:38,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 368 [2019-10-13 21:19:38,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:38,738 INFO L225 Difference]: With dead ends: 10161 [2019-10-13 21:19:38,738 INFO L226 Difference]: Without dead ends: 6282 [2019-10-13 21:19:38,754 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 21:19:38,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6282 states. [2019-10-13 21:19:39,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6282 to 6280. [2019-10-13 21:19:39,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6280 states. [2019-10-13 21:19:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 10027 transitions. [2019-10-13 21:19:39,088 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 10027 transitions. Word has length 368 [2019-10-13 21:19:39,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:39,090 INFO L462 AbstractCegarLoop]: Abstraction has 6280 states and 10027 transitions. [2019-10-13 21:19:39,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:39,090 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 10027 transitions. [2019-10-13 21:19:39,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2019-10-13 21:19:39,129 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:39,130 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:19:39,131 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:39,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:39,131 INFO L82 PathProgramCache]: Analyzing trace with hash 49988319, now seen corresponding path program 1 times [2019-10-13 21:19:39,131 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:39,132 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390830557] [2019-10-13 21:19:39,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:39,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:39,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:39,418 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2019-10-13 21:19:39,418 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390830557] [2019-10-13 21:19:39,419 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:39,419 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:39,419 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891145118] [2019-10-13 21:19:39,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:39,421 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:39,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:39,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:39,421 INFO L87 Difference]: Start difference. First operand 6280 states and 10027 transitions. Second operand 3 states. [2019-10-13 21:19:39,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:39,764 INFO L93 Difference]: Finished difference Result 16977 states and 27471 transitions. [2019-10-13 21:19:39,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:39,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 369 [2019-10-13 21:19:39,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:39,842 INFO L225 Difference]: With dead ends: 16977 [2019-10-13 21:19:39,842 INFO L226 Difference]: Without dead ends: 10762 [2019-10-13 21:19:39,875 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 21:19:39,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10762 states. [2019-10-13 21:19:40,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10762 to 10760. [2019-10-13 21:19:40,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10760 states. [2019-10-13 21:19:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10760 states to 10760 states and 17387 transitions. [2019-10-13 21:19:40,348 INFO L78 Accepts]: Start accepts. Automaton has 10760 states and 17387 transitions. Word has length 369 [2019-10-13 21:19:40,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:40,348 INFO L462 AbstractCegarLoop]: Abstraction has 10760 states and 17387 transitions. [2019-10-13 21:19:40,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:40,349 INFO L276 IsEmpty]: Start isEmpty. Operand 10760 states and 17387 transitions. [2019-10-13 21:19:40,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2019-10-13 21:19:40,413 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:40,414 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:40,414 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:40,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:40,415 INFO L82 PathProgramCache]: Analyzing trace with hash -2032256724, now seen corresponding path program 1 times [2019-10-13 21:19:40,415 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:40,415 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766007570] [2019-10-13 21:19:40,415 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:40,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:40,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:41,613 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-13 21:19:41,614 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766007570] [2019-10-13 21:19:41,614 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480837236] [2019-10-13 21:19:41,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:42,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 3986 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:19:42,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:19:42,780 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-10-13 21:19:42,780 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:19:43,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:19:43,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:43,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:44,009 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-10-13 21:19:44,009 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:19:44,010 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [22, 9] total 35 [2019-10-13 21:19:44,010 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763849079] [2019-10-13 21:19:44,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:19:44,011 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:44,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:19:44,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1100, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 21:19:44,012 INFO L87 Difference]: Start difference. First operand 10760 states and 17387 transitions. Second operand 9 states. [2019-10-13 21:19:46,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:46,016 INFO L93 Difference]: Finished difference Result 21498 states and 34754 transitions. [2019-10-13 21:19:46,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:19:46,017 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 349 [2019-10-13 21:19:46,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:46,064 INFO L225 Difference]: With dead ends: 21498 [2019-10-13 21:19:46,064 INFO L226 Difference]: Without dead ends: 10774 [2019-10-13 21:19:46,111 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 687 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=1295, Unknown=0, NotChecked=0, Total=1406 [2019-10-13 21:19:46,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10774 states. [2019-10-13 21:19:46,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10774 to 10774. [2019-10-13 21:19:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10774 states. [2019-10-13 21:19:46,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10774 states to 10774 states and 17405 transitions. [2019-10-13 21:19:46,769 INFO L78 Accepts]: Start accepts. Automaton has 10774 states and 17405 transitions. Word has length 349 [2019-10-13 21:19:46,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:46,770 INFO L462 AbstractCegarLoop]: Abstraction has 10774 states and 17405 transitions. [2019-10-13 21:19:46,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:19:46,770 INFO L276 IsEmpty]: Start isEmpty. Operand 10774 states and 17405 transitions. [2019-10-13 21:19:46,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2019-10-13 21:19:46,862 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:46,863 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:47,079 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:47,080 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:47,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:47,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1962759948, now seen corresponding path program 1 times [2019-10-13 21:19:47,082 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:47,082 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399935724] [2019-10-13 21:19:47,082 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:47,082 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:47,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-13 21:19:47,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399935724] [2019-10-13 21:19:47,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847578116] [2019-10-13 21:19:47,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:48,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 3987 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:19:48,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:19:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-10-13 21:19:48,859 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:19:49,538 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:49,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-10-13 21:19:49,737 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:19:49,738 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22, 7] total 31 [2019-10-13 21:19:49,738 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588718554] [2019-10-13 21:19:49,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:19:49,739 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:49,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:19:49,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2019-10-13 21:19:49,740 INFO L87 Difference]: Start difference. First operand 10774 states and 17405 transitions. Second operand 7 states. [2019-10-13 21:19:51,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:51,512 INFO L93 Difference]: Finished difference Result 21501 states and 34887 transitions. [2019-10-13 21:19:51,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:19:51,512 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 350 [2019-10-13 21:19:51,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:51,560 INFO L225 Difference]: With dead ends: 21501 [2019-10-13 21:19:51,561 INFO L226 Difference]: Without dead ends: 10778 [2019-10-13 21:19:51,604 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 694 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=966, Unknown=0, NotChecked=0, Total=1056 [2019-10-13 21:19:51,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10778 states. [2019-10-13 21:19:52,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10778 to 10778. [2019-10-13 21:19:52,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10778 states. [2019-10-13 21:19:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10778 states to 10778 states and 17410 transitions. [2019-10-13 21:19:52,184 INFO L78 Accepts]: Start accepts. Automaton has 10778 states and 17410 transitions. Word has length 350 [2019-10-13 21:19:52,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:52,184 INFO L462 AbstractCegarLoop]: Abstraction has 10778 states and 17410 transitions. [2019-10-13 21:19:52,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:19:52,185 INFO L276 IsEmpty]: Start isEmpty. Operand 10778 states and 17410 transitions. [2019-10-13 21:19:52,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2019-10-13 21:19:52,234 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:52,234 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:52,443 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:52,444 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:52,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:52,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1820389773, now seen corresponding path program 1 times [2019-10-13 21:19:52,444 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:52,445 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698516970] [2019-10-13 21:19:52,445 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:52,445 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:52,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:53,020 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-13 21:19:53,020 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698516970] [2019-10-13 21:19:53,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187743295] [2019-10-13 21:19:53,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:53,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 3988 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:19:53,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:19:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2019-10-13 21:19:54,234 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:19:54,476 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-13 21:19:55,077 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:19:55,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:55,250 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:55,412 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-10-13 21:19:55,412 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:19:55,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [22] total 36 [2019-10-13 21:19:55,413 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017517165] [2019-10-13 21:19:55,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 21:19:55,414 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:55,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 21:19:55,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1161, Unknown=0, NotChecked=0, Total=1260 [2019-10-13 21:19:55,415 INFO L87 Difference]: Start difference. First operand 10778 states and 17410 transitions. Second operand 16 states.