java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:14:56,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:14:56,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:14:56,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:14:56,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:14:56,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:14:56,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:14:56,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:14:56,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:14:56,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:14:56,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:14:56,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:14:56,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:14:56,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:14:56,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:14:56,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:14:56,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:14:56,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:14:56,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:14:56,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:14:56,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:14:56,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:14:56,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:14:56,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:14:56,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:14:56,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:14:56,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:14:56,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:14:56,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:14:56,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:14:56,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:14:56,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:14:56,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:14:56,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:14:56,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:14:56,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:14:56,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:14:56,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:14:56,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:14:56,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:14:56,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:14:56,904 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:14:56,929 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:14:56,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:14:56,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:14:56,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:14:56,935 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:14:56,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:14:56,935 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:14:56,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:14:56,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:14:56,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:14:56,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:14:56,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:14:56,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:14:56,938 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:14:56,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:14:56,938 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:14:56,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:14:56,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:14:56,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:14:56,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:14:56,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:14:56,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:56,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:14:56,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:14:56,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:14:56,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:14:56,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:14:56,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:14:56,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:14:57,254 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:14:57,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:14:57,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:14:57,274 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:14:57,274 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:14:57,275 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c [2019-10-15 01:14:57,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8713956d3/a864ec6628754c96992cc21de157cfba/FLAGa32e4f001 [2019-10-15 01:14:57,970 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:14:57,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c [2019-10-15 01:14:57,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8713956d3/a864ec6628754c96992cc21de157cfba/FLAGa32e4f001 [2019-10-15 01:14:58,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8713956d3/a864ec6628754c96992cc21de157cfba [2019-10-15 01:14:58,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:14:58,211 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:14:58,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:58,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:14:58,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:14:58,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:58" (1/1) ... [2019-10-15 01:14:58,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e8ed57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:58, skipping insertion in model container [2019-10-15 01:14:58,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:58" (1/1) ... [2019-10-15 01:14:58,225 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:14:58,300 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:14:59,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:59,140 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:14:59,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:59,361 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:14:59,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:59 WrapperNode [2019-10-15 01:14:59,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:59,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:14:59,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:14:59,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:14:59,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:59" (1/1) ... [2019-10-15 01:14:59,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:59" (1/1) ... [2019-10-15 01:14:59,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:59" (1/1) ... [2019-10-15 01:14:59,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:59" (1/1) ... [2019-10-15 01:14:59,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:59" (1/1) ... [2019-10-15 01:14:59,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:59" (1/1) ... [2019-10-15 01:14:59,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:59" (1/1) ... [2019-10-15 01:14:59,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:14:59,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:14:59,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:14:59,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:14:59,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:14:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:14:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:14:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:14:59,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:14:59,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:14:59,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:14:59,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:14:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:14:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:14:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:14:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:14:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:14:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:14:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:14:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:14:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:14:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:14:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:14:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:14:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:14:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:14:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:14:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:14:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:14:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:14:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:14:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:14:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:14:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:14:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:14:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:14:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:14:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:14:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:14:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:14:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:14:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:14:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:14:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:14:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:14:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:14:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:14:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:14:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:14:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:14:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:14:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:14:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:14:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:14:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:14:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:14:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:14:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:14:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:14:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:14:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:14:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:14:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:14:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:14:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:14:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:14:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:14:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:14:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:14:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:14:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:14:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:14:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:14:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:14:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:14:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:14:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:14:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:14:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:14:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:14:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:14:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:14:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:14:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:14:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:14:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:14:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:14:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:14:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:14:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:14:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:14:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:14:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:14:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:14:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:14:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:14:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:14:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:14:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:14:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:14:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:14:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:14:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:14:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:14:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 01:14:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:14:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:14:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:14:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:14:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:14:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:14:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:14:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:14:59,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:14:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:14:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:14:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:14:59,690 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:14:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:14:59,691 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:14:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:14:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:14:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:14:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:14:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:14:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:14:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:14:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:14:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:14:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:14:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:14:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:14:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:14:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:14:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:14:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:14:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:14:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:14:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:14:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:14:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:14:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:14:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:14:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:14:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:14:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:14:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:14:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:14:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:14:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:14:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:14:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:14:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:14:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:14:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:14:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:14:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:14:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:14:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:14:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:14:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:14:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:14:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:14:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:14:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:14:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:14:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:14:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:14:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:14:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:14:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:14:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:14:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:14:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:14:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:14:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:14:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:14:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:14:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:14:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:14:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:14:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:14:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:14:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:14:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:14:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:14:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:14:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:14:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:14:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:14:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:14:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:14:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:14:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:14:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:14:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:14:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:14:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:14:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:14:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:14:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:14:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:14:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:14:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:14:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:14:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:14:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:14:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:14:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:14:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:14:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:14:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:14:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:14:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:14:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:14:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:14:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:14:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:14:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:14:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:14:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:14:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:14:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:14:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:14:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:14:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:14:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:14:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:14:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 01:14:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:14:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:14:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:14:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:14:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:14:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:15:01,920 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:15:01,920 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:15:01,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:01 BoogieIcfgContainer [2019-10-15 01:15:01,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:15:01,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:15:01,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:15:01,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:15:01,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:14:58" (1/3) ... [2019-10-15 01:15:01,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46505cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:01, skipping insertion in model container [2019-10-15 01:15:01,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:59" (2/3) ... [2019-10-15 01:15:01,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46505cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:01, skipping insertion in model container [2019-10-15 01:15:01,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:01" (3/3) ... [2019-10-15 01:15:01,932 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product31.cil.c [2019-10-15 01:15:01,944 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:15:01,956 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:15:01,968 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:15:02,015 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:15:02,019 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:15:02,019 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:15:02,019 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:15:02,020 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:15:02,020 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:15:02,020 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:15:02,020 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:15:02,062 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states. [2019-10-15 01:15:02,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:15:02,130 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:02,131 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:02,133 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:02,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:02,141 INFO L82 PathProgramCache]: Analyzing trace with hash 721046369, now seen corresponding path program 1 times [2019-10-15 01:15:02,151 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:02,151 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553391833] [2019-10-15 01:15:02,152 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:02,152 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:02,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:02,871 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:15:02,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553391833] [2019-10-15 01:15:02,874 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:02,874 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:15:02,874 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072379108] [2019-10-15 01:15:02,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:15:02,884 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:02,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:15:02,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:02,902 INFO L87 Difference]: Start difference. First operand 570 states. Second operand 2 states. [2019-10-15 01:15:03,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:03,032 INFO L93 Difference]: Finished difference Result 882 states and 1163 transitions. [2019-10-15 01:15:03,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:15:03,034 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 195 [2019-10-15 01:15:03,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:03,071 INFO L225 Difference]: With dead ends: 882 [2019-10-15 01:15:03,071 INFO L226 Difference]: Without dead ends: 547 [2019-10-15 01:15:03,082 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:03,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2019-10-15 01:15:03,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2019-10-15 01:15:03,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2019-10-15 01:15:03,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 723 transitions. [2019-10-15 01:15:03,208 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 723 transitions. Word has length 195 [2019-10-15 01:15:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:03,210 INFO L462 AbstractCegarLoop]: Abstraction has 547 states and 723 transitions. [2019-10-15 01:15:03,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:15:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 723 transitions. [2019-10-15 01:15:03,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:15:03,216 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:03,216 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:03,217 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:03,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:03,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1162563648, now seen corresponding path program 1 times [2019-10-15 01:15:03,217 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:03,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437174782] [2019-10-15 01:15:03,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:03,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:03,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:15:03,534 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437174782] [2019-10-15 01:15:03,534 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:03,535 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:03,535 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016697194] [2019-10-15 01:15:03,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:03,541 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:03,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:03,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:03,542 INFO L87 Difference]: Start difference. First operand 547 states and 723 transitions. Second operand 3 states. [2019-10-15 01:15:03,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:03,643 INFO L93 Difference]: Finished difference Result 865 states and 1126 transitions. [2019-10-15 01:15:03,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:03,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-15 01:15:03,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:03,650 INFO L225 Difference]: With dead ends: 865 [2019-10-15 01:15:03,650 INFO L226 Difference]: Without dead ends: 550 [2019-10-15 01:15:03,653 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:03,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2019-10-15 01:15:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 549. [2019-10-15 01:15:03,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2019-10-15 01:15:03,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 725 transitions. [2019-10-15 01:15:03,716 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 725 transitions. Word has length 196 [2019-10-15 01:15:03,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:03,718 INFO L462 AbstractCegarLoop]: Abstraction has 549 states and 725 transitions. [2019-10-15 01:15:03,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 725 transitions. [2019-10-15 01:15:03,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:15:03,727 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:03,727 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:15:03,727 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:03,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:03,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1293026860, now seen corresponding path program 1 times [2019-10-15 01:15:03,728 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:03,728 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356618967] [2019-10-15 01:15:03,728 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:03,728 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:03,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:03,994 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:15:03,995 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356618967] [2019-10-15 01:15:03,995 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:03,995 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:03,996 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32904069] [2019-10-15 01:15:03,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:04,000 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:04,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:04,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:04,001 INFO L87 Difference]: Start difference. First operand 549 states and 725 transitions. Second operand 3 states. [2019-10-15 01:15:04,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:04,049 INFO L93 Difference]: Finished difference Result 1074 states and 1448 transitions. [2019-10-15 01:15:04,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:04,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-10-15 01:15:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:04,057 INFO L225 Difference]: With dead ends: 1074 [2019-10-15 01:15:04,058 INFO L226 Difference]: Without dead ends: 590 [2019-10-15 01:15:04,060 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:04,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2019-10-15 01:15:04,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 589. [2019-10-15 01:15:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2019-10-15 01:15:04,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 794 transitions. [2019-10-15 01:15:04,107 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 794 transitions. Word has length 202 [2019-10-15 01:15:04,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:04,110 INFO L462 AbstractCegarLoop]: Abstraction has 589 states and 794 transitions. [2019-10-15 01:15:04,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:04,111 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 794 transitions. [2019-10-15 01:15:04,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:15:04,123 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:04,123 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:15:04,123 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:04,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:04,124 INFO L82 PathProgramCache]: Analyzing trace with hash 488920011, now seen corresponding path program 1 times [2019-10-15 01:15:04,124 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:04,125 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244179723] [2019-10-15 01:15:04,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:04,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:04,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:04,702 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244179723] [2019-10-15 01:15:04,703 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963648262] [2019-10-15 01:15:04,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:05,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 2914 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:05,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:05,783 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:15:05,784 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:06,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:06,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:06,389 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:06,577 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:06,578 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19, 9] total 32 [2019-10-15 01:15:06,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577834645] [2019-10-15 01:15:06,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:15:06,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:06,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:15:06,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:15:06,582 INFO L87 Difference]: Start difference. First operand 589 states and 794 transitions. Second operand 9 states. [2019-10-15 01:15:08,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:08,095 INFO L93 Difference]: Finished difference Result 1156 states and 1568 transitions. [2019-10-15 01:15:08,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:15:08,096 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 203 [2019-10-15 01:15:08,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:08,101 INFO L225 Difference]: With dead ends: 1156 [2019-10-15 01:15:08,102 INFO L226 Difference]: Without dead ends: 603 [2019-10-15 01:15:08,104 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 395 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=1083, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:15:08,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2019-10-15 01:15:08,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2019-10-15 01:15:08,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2019-10-15 01:15:08,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 812 transitions. [2019-10-15 01:15:08,155 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 812 transitions. Word has length 203 [2019-10-15 01:15:08,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:08,156 INFO L462 AbstractCegarLoop]: Abstraction has 603 states and 812 transitions. [2019-10-15 01:15:08,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:15:08,156 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 812 transitions. [2019-10-15 01:15:08,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:15:08,160 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:08,161 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-15 01:15:08,373 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:08,374 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:08,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:08,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1165436815, now seen corresponding path program 1 times [2019-10-15 01:15:08,375 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:08,375 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521955254] [2019-10-15 01:15:08,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:08,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:08,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:08,825 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521955254] [2019-10-15 01:15:08,825 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585716842] [2019-10-15 01:15:08,825 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 [2019-10-15 01:15:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:09,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 2915 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:09,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:15:09,651 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:09,932 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:09,997 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:10,065 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:10,066 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19, 7] total 28 [2019-10-15 01:15:10,066 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519154223] [2019-10-15 01:15:10,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:10,068 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:10,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:10,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:10,069 INFO L87 Difference]: Start difference. First operand 603 states and 812 transitions. Second operand 7 states. [2019-10-15 01:15:11,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:11,279 INFO L93 Difference]: Finished difference Result 1157 states and 1572 transitions. [2019-10-15 01:15:11,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:15:11,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2019-10-15 01:15:11,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:11,285 INFO L225 Difference]: With dead ends: 1157 [2019-10-15 01:15:11,285 INFO L226 Difference]: Without dead ends: 605 [2019-10-15 01:15:11,288 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 402 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2019-10-15 01:15:11,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2019-10-15 01:15:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2019-10-15 01:15:11,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2019-10-15 01:15:11,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 815 transitions. [2019-10-15 01:15:11,314 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 815 transitions. Word has length 204 [2019-10-15 01:15:11,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:11,315 INFO L462 AbstractCegarLoop]: Abstraction has 605 states and 815 transitions. [2019-10-15 01:15:11,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:11,315 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 815 transitions. [2019-10-15 01:15:11,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:15:11,318 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:11,319 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:15:11,527 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:11,527 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:11,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:11,528 INFO L82 PathProgramCache]: Analyzing trace with hash 260395139, now seen corresponding path program 1 times [2019-10-15 01:15:11,528 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:11,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732860434] [2019-10-15 01:15:11,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:11,529 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:11,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:11,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732860434] [2019-10-15 01:15:11,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348660774] [2019-10-15 01:15:11,910 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 [2019-10-15 01:15:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:12,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 2916 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:12,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:12,741 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:15:12,741 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:13,077 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:13,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:13,256 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:13,461 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:13,461 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [19] total 33 [2019-10-15 01:15:13,462 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543558323] [2019-10-15 01:15:13,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:15:13,463 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:13,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:15:13,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 01:15:13,464 INFO L87 Difference]: Start difference. First operand 605 states and 815 transitions. Second operand 16 states. [2019-10-15 01:15:15,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:15,368 INFO L93 Difference]: Finished difference Result 1161 states and 1572 transitions. [2019-10-15 01:15:15,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:15,368 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 205 [2019-10-15 01:15:15,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:15,373 INFO L225 Difference]: With dead ends: 1161 [2019-10-15 01:15:15,373 INFO L226 Difference]: Without dead ends: 617 [2019-10-15 01:15:15,375 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 399 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 01:15:15,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2019-10-15 01:15:15,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 615. [2019-10-15 01:15:15,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-15 01:15:15,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 826 transitions. [2019-10-15 01:15:15,400 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 826 transitions. Word has length 205 [2019-10-15 01:15:15,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:15,400 INFO L462 AbstractCegarLoop]: Abstraction has 615 states and 826 transitions. [2019-10-15 01:15:15,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:15:15,401 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 826 transitions. [2019-10-15 01:15:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-15 01:15:15,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:15,404 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:15:15,611 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:15,612 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:15,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:15,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1953202013, now seen corresponding path program 2 times [2019-10-15 01:15:15,613 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:15,613 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497828464] [2019-10-15 01:15:15,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:15,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:15,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:16,142 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:16,143 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497828464] [2019-10-15 01:15:16,143 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097366237] [2019-10-15 01:15:16,144 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:16,690 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:15:16,691 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:15:16,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:15:16,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:16,902 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:17,313 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:17,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [19] total 31 [2019-10-15 01:15:17,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636273175] [2019-10-15 01:15:17,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:15:17,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:17,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:15:17,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:15:17,315 INFO L87 Difference]: Start difference. First operand 615 states and 826 transitions. Second operand 14 states. [2019-10-15 01:15:19,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:19,614 INFO L93 Difference]: Finished difference Result 2079 states and 2826 transitions. [2019-10-15 01:15:19,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:15:19,614 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 206 [2019-10-15 01:15:19,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:19,636 INFO L225 Difference]: With dead ends: 2079 [2019-10-15 01:15:19,637 INFO L226 Difference]: Without dead ends: 1777 [2019-10-15 01:15:19,640 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 410 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2019-10-15 01:15:19,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2019-10-15 01:15:19,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1426. [2019-10-15 01:15:19,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2019-10-15 01:15:19,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1978 transitions. [2019-10-15 01:15:19,738 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1978 transitions. Word has length 206 [2019-10-15 01:15:19,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:19,740 INFO L462 AbstractCegarLoop]: Abstraction has 1426 states and 1978 transitions. [2019-10-15 01:15:19,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:15:19,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1978 transitions. [2019-10-15 01:15:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:15:19,748 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:19,748 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:15:19,955 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:19,955 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:19,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:19,956 INFO L82 PathProgramCache]: Analyzing trace with hash -362259919, now seen corresponding path program 1 times [2019-10-15 01:15:19,956 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:19,956 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399011996] [2019-10-15 01:15:19,957 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:19,957 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:19,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:20,361 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:20,361 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399011996] [2019-10-15 01:15:20,362 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495034252] [2019-10-15 01:15:20,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:20,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 2918 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:20,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:21,154 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:15:21,154 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:21,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:21,661 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:21,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:22,134 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:22,134 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [15] total 28 [2019-10-15 01:15:22,135 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820113400] [2019-10-15 01:15:22,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:15:22,138 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:22,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:15:22,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:22,140 INFO L87 Difference]: Start difference. First operand 1426 states and 1978 transitions. Second operand 15 states. [2019-10-15 01:15:24,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:24,145 INFO L93 Difference]: Finished difference Result 2746 states and 3832 transitions. [2019-10-15 01:15:24,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:24,145 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 207 [2019-10-15 01:15:24,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:24,155 INFO L225 Difference]: With dead ends: 2746 [2019-10-15 01:15:24,155 INFO L226 Difference]: Without dead ends: 1432 [2019-10-15 01:15:24,160 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 403 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:15:24,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2019-10-15 01:15:24,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1426. [2019-10-15 01:15:24,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2019-10-15 01:15:24,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1976 transitions. [2019-10-15 01:15:24,225 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1976 transitions. Word has length 207 [2019-10-15 01:15:24,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:24,226 INFO L462 AbstractCegarLoop]: Abstraction has 1426 states and 1976 transitions. [2019-10-15 01:15:24,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:15:24,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1976 transitions. [2019-10-15 01:15:24,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-15 01:15:24,232 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:24,232 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:15:24,440 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:24,440 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:24,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:24,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1553698092, now seen corresponding path program 1 times [2019-10-15 01:15:24,442 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:24,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138550590] [2019-10-15 01:15:24,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:24,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:24,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:24,754 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:24,754 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138550590] [2019-10-15 01:15:24,755 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20511360] [2019-10-15 01:15:24,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:25,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 2919 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:25,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:15:25,610 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:25,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:25,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:15:25,990 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:25,991 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [15] total 25 [2019-10-15 01:15:25,991 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955948466] [2019-10-15 01:15:25,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:15:25,992 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:25,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:15:25,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:15:25,993 INFO L87 Difference]: Start difference. First operand 1426 states and 1976 transitions. Second operand 12 states. [2019-10-15 01:15:27,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:27,383 INFO L93 Difference]: Finished difference Result 2273 states and 3108 transitions. [2019-10-15 01:15:27,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:15:27,383 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 208 [2019-10-15 01:15:27,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:27,392 INFO L225 Difference]: With dead ends: 2273 [2019-10-15 01:15:27,392 INFO L226 Difference]: Without dead ends: 1202 [2019-10-15 01:15:27,396 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 410 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:27,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2019-10-15 01:15:27,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1202. [2019-10-15 01:15:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1202 states. [2019-10-15 01:15:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1627 transitions. [2019-10-15 01:15:27,453 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1627 transitions. Word has length 208 [2019-10-15 01:15:27,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:27,454 INFO L462 AbstractCegarLoop]: Abstraction has 1202 states and 1627 transitions. [2019-10-15 01:15:27,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:15:27,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1627 transitions. [2019-10-15 01:15:27,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 01:15:27,459 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:27,460 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:15:27,667 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:27,668 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:27,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:27,668 INFO L82 PathProgramCache]: Analyzing trace with hash 146739268, now seen corresponding path program 2 times [2019-10-15 01:15:27,668 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:27,668 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702171878] [2019-10-15 01:15:27,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:27,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:27,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:27,976 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:15:27,977 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702171878] [2019-10-15 01:15:27,977 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060237575] [2019-10-15 01:15:27,977 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:28,541 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:15:28,541 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:15:28,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 2302 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:15:28,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:28,697 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:29,098 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:29,098 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [15] total 27 [2019-10-15 01:15:29,099 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338496195] [2019-10-15 01:15:29,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:15:29,100 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:29,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:15:29,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2019-10-15 01:15:29,100 INFO L87 Difference]: Start difference. First operand 1202 states and 1627 transitions. Second operand 14 states. [2019-10-15 01:15:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:31,325 INFO L93 Difference]: Finished difference Result 4115 states and 5635 transitions. [2019-10-15 01:15:31,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:15:31,326 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 209 [2019-10-15 01:15:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:31,347 INFO L225 Difference]: With dead ends: 4115 [2019-10-15 01:15:31,347 INFO L226 Difference]: Without dead ends: 3505 [2019-10-15 01:15:31,352 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 417 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=1534, Unknown=0, NotChecked=0, Total=1722 [2019-10-15 01:15:31,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3505 states. [2019-10-15 01:15:31,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3505 to 2803. [2019-10-15 01:15:31,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2803 states. [2019-10-15 01:15:31,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3924 transitions. [2019-10-15 01:15:31,493 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3924 transitions. Word has length 209 [2019-10-15 01:15:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:31,494 INFO L462 AbstractCegarLoop]: Abstraction has 2803 states and 3924 transitions. [2019-10-15 01:15:31,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:15:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3924 transitions. [2019-10-15 01:15:31,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 01:15:31,505 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:31,505 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:15:31,712 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:31,713 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:31,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:31,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1115313220, now seen corresponding path program 1 times [2019-10-15 01:15:31,713 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:31,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747015319] [2019-10-15 01:15:31,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:31,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:31,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:31,865 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-15 01:15:31,866 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747015319] [2019-10-15 01:15:31,866 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594123079] [2019-10-15 01:15:31,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true