/usr/bin/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_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:50:25,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:50:25,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:50:25,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:50:25,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:50:25,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:50:25,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:50:25,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:50:25,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:50:25,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:50:25,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:50:25,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:50:25,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:50:25,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:50:25,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:50:25,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:50:25,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:50:25,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:50:25,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:50:25,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:50:25,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:50:25,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:50:25,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:50:25,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:50:25,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:50:25,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:50:25,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:50:25,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:50:25,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:50:25,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:50:25,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:50:25,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:50:25,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:50:25,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:50:25,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:50:25,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:50:25,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:50:25,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:50:25,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:50:25,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:50:25,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:50:25,811 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 [2019-11-07 00:50:25,825 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:50:25,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:50:25,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:50:25,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:50:25,827 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:50:25,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:50:25,827 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:50:25,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:50:25,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:50:25,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:50:25,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:50:25,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:50:25,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:50:25,829 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:50:25,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:50:25,829 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:50:25,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:50:25,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:50:25,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:50:25,830 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:50:25,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:50:25,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:50:25,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:50:25,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:50:25,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:50:25,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:50:25,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:50:25,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:50:25,832 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 [2019-11-07 00:50:26,137 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:50:26,155 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:50:26,159 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:50:26,161 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:50:26,161 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:50:26,163 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product18.cil.c [2019-11-07 00:50:26,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092d16138/c470c13d459e44fcb25f2f0af09f0050/FLAG0bb5667f6 [2019-11-07 00:50:26,868 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:50:26,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product18.cil.c [2019-11-07 00:50:26,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092d16138/c470c13d459e44fcb25f2f0af09f0050/FLAG0bb5667f6 [2019-11-07 00:50:27,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092d16138/c470c13d459e44fcb25f2f0af09f0050 [2019-11-07 00:50:27,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:50:27,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:50:27,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:50:27,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:50:27,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:50:27,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:50:27" (1/1) ... [2019-11-07 00:50:27,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e5d574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:27, skipping insertion in model container [2019-11-07 00:50:27,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:50:27" (1/1) ... [2019-11-07 00:50:27,116 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:50:27,209 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:50:28,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:50:28,106 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:50:28,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:50:28,313 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:50:28,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:28 WrapperNode [2019-11-07 00:50:28,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:50:28,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:50:28,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:50:28,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:50:28,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:28" (1/1) ... [2019-11-07 00:50:28,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:28" (1/1) ... [2019-11-07 00:50:28,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:28" (1/1) ... [2019-11-07 00:50:28,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:28" (1/1) ... [2019-11-07 00:50:28,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:28" (1/1) ... [2019-11-07 00:50:28,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:28" (1/1) ... [2019-11-07 00:50:28,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:28" (1/1) ... [2019-11-07 00:50:28,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:50:28,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:50:28,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:50:28,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:50:28,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:50:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:50:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:50:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:50:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:50:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:50:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:50:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:50:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:50:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:50:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:50:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:50:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:50:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:50:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:50:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:50:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:50:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:50:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:50:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:50:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:50:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:50:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:50:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:50:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:50:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:50:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:50:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:50:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:50:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:50:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:50:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:50:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:50:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:50:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:50:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:50:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:50:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:50:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:50:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:50:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:50:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:50:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:50:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:50:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:50:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:50:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:50:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:50:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:50:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:50:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:50:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:50:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:50:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:50:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:50:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:50:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:50:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:50:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:50:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:50:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:50:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:50:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:50:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:50:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:50:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:50:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:50:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:50:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-11-07 00:50:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:50:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:50:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:50:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:50:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:50:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:50:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:50:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:50:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:50:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:50:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:50:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:50:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:50:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:50:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:50:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:50:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:50:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:50:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:50:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:50:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:50:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:50:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:50:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:50:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:50:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:50:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:50:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:50:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:50:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:50:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:50:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:50:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:50:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:50:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 00:50:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 00:50:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:50:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 00:50:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 00:50:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:50:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:50:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:50:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:50:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:50:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:50:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:50:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:50:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:50:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:50:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:50:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:50:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:50:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:50:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:50:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:50:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:50:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:50:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:50:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:50:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:50:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:50:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:50:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:50:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:50:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:50:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:50:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:50:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:50:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:50:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:50:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:50:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:50:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:50:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:50:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:50:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:50:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:50:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:50:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:50:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:50:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:50:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:50:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:50:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:50:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:50:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:50:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:50:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:50:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:50:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:50:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:50:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:50:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:50:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:50:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:50:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:50:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:50:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:50:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:50:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:50:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:50:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:50:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:50:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:50:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:50:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:50:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:50:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:50:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:50:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:50:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:50:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:50:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:50:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:50:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:50:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:50:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:50:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:50:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:50:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:50:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:50:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:50:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:50:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:50:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:50:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:50:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:50:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:50:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:50:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:50:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:50:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:50:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:50:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:50:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:50:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:50:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:50:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:50:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:50:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:50:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:50:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:50:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:50:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:50:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:50:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:50:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 00:50:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:50:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-11-07 00:50:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:50:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 00:50:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:50:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:50:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:50:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:50:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:50:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:50:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:50:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:50:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:50:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:50:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:50:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:50:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:50:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:50:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 00:50:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 00:50:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:50:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:50:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:50:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:50:30,608 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:50:30,609 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:50:30,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:50:30 BoogieIcfgContainer [2019-11-07 00:50:30,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:50:30,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:50:30,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:50:30,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:50:30,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:50:27" (1/3) ... [2019-11-07 00:50:30,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f1fad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:50:30, skipping insertion in model container [2019-11-07 00:50:30,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:28" (2/3) ... [2019-11-07 00:50:30,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f1fad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:50:30, skipping insertion in model container [2019-11-07 00:50:30,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:50:30" (3/3) ... [2019-11-07 00:50:30,619 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product18.cil.c [2019-11-07 00:50:30,629 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:50:30,639 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:50:30,651 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:50:30,681 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:50:30,682 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:50:30,682 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:50:30,682 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:50:30,682 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:50:30,682 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:50:30,682 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:50:30,683 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:50:30,712 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states. [2019-11-07 00:50:30,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-11-07 00:50:30,741 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:30,746 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:30,751 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:30,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:30,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1409604361, now seen corresponding path program 1 times [2019-11-07 00:50:30,769 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:30,769 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704154841] [2019-11-07 00:50:30,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:50:31,456 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704154841] [2019-11-07 00:50:31,457 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:31,458 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:50:31,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989740735] [2019-11-07 00:50:31,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:50:31,467 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:31,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:50:31,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:50:31,484 INFO L87 Difference]: Start difference. First operand 494 states. Second operand 2 states. [2019-11-07 00:50:31,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:31,554 INFO L93 Difference]: Finished difference Result 686 states and 905 transitions. [2019-11-07 00:50:31,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:50:31,556 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 170 [2019-11-07 00:50:31,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:31,589 INFO L225 Difference]: With dead ends: 686 [2019-11-07 00:50:31,589 INFO L226 Difference]: Without dead ends: 449 [2019-11-07 00:50:31,600 INFO L630 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 [2019-11-07 00:50:31,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-11-07 00:50:31,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2019-11-07 00:50:31,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2019-11-07 00:50:31,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 595 transitions. [2019-11-07 00:50:31,706 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 595 transitions. Word has length 170 [2019-11-07 00:50:31,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:31,708 INFO L462 AbstractCegarLoop]: Abstraction has 449 states and 595 transitions. [2019-11-07 00:50:31,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:50:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 595 transitions. [2019-11-07 00:50:31,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-11-07 00:50:31,722 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:31,723 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:31,723 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:31,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:31,724 INFO L82 PathProgramCache]: Analyzing trace with hash 295988568, now seen corresponding path program 1 times [2019-11-07 00:50:31,724 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:31,724 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672420160] [2019-11-07 00:50:31,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:50:32,034 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672420160] [2019-11-07 00:50:32,034 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:32,035 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:50:32,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074382616] [2019-11-07 00:50:32,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:50:32,047 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:32,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:50:32,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:50:32,052 INFO L87 Difference]: Start difference. First operand 449 states and 595 transitions. Second operand 3 states. [2019-11-07 00:50:32,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:32,124 INFO L93 Difference]: Finished difference Result 669 states and 870 transitions. [2019-11-07 00:50:32,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:50:32,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-11-07 00:50:32,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:32,131 INFO L225 Difference]: With dead ends: 669 [2019-11-07 00:50:32,131 INFO L226 Difference]: Without dead ends: 452 [2019-11-07 00:50:32,133 INFO L630 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 [2019-11-07 00:50:32,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2019-11-07 00:50:32,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 451. [2019-11-07 00:50:32,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2019-11-07 00:50:32,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 597 transitions. [2019-11-07 00:50:32,166 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 597 transitions. Word has length 171 [2019-11-07 00:50:32,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:32,166 INFO L462 AbstractCegarLoop]: Abstraction has 451 states and 597 transitions. [2019-11-07 00:50:32,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:50:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 597 transitions. [2019-11-07 00:50:32,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-11-07 00:50:32,170 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:32,171 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:32,171 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:32,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:32,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1559518136, now seen corresponding path program 1 times [2019-11-07 00:50:32,171 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:32,172 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105409640] [2019-11-07 00:50:32,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:50:32,447 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105409640] [2019-11-07 00:50:32,447 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:32,447 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:50:32,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157785973] [2019-11-07 00:50:32,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:50:32,453 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:32,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:50:32,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:50:32,453 INFO L87 Difference]: Start difference. First operand 451 states and 597 transitions. Second operand 3 states. [2019-11-07 00:50:32,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:32,507 INFO L93 Difference]: Finished difference Result 878 states and 1192 transitions. [2019-11-07 00:50:32,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:50:32,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-11-07 00:50:32,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:32,517 INFO L225 Difference]: With dead ends: 878 [2019-11-07 00:50:32,518 INFO L226 Difference]: Without dead ends: 492 [2019-11-07 00:50:32,521 INFO L630 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 [2019-11-07 00:50:32,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2019-11-07 00:50:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 491. [2019-11-07 00:50:32,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2019-11-07 00:50:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 666 transitions. [2019-11-07 00:50:32,590 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 666 transitions. Word has length 181 [2019-11-07 00:50:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:32,591 INFO L462 AbstractCegarLoop]: Abstraction has 491 states and 666 transitions. [2019-11-07 00:50:32,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:50:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 666 transitions. [2019-11-07 00:50:32,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-11-07 00:50:32,597 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:32,598 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:32,599 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:32,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:32,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1957887877, now seen corresponding path program 1 times [2019-11-07 00:50:32,600 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:32,600 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977865422] [2019-11-07 00:50:32,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:32,849 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:50:32,850 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977865422] [2019-11-07 00:50:32,850 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:32,851 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:50:32,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399341136] [2019-11-07 00:50:32,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:50:32,852 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:32,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:50:32,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:50:32,857 INFO L87 Difference]: Start difference. First operand 491 states and 666 transitions. Second operand 3 states. [2019-11-07 00:50:32,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:32,920 INFO L93 Difference]: Finished difference Result 995 states and 1394 transitions. [2019-11-07 00:50:32,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:50:32,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2019-11-07 00:50:32,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:32,928 INFO L225 Difference]: With dead ends: 995 [2019-11-07 00:50:32,928 INFO L226 Difference]: Without dead ends: 569 [2019-11-07 00:50:32,930 INFO L630 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 [2019-11-07 00:50:32,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2019-11-07 00:50:32,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 568. [2019-11-07 00:50:32,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2019-11-07 00:50:32,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 798 transitions. [2019-11-07 00:50:32,961 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 798 transitions. Word has length 182 [2019-11-07 00:50:32,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:32,962 INFO L462 AbstractCegarLoop]: Abstraction has 568 states and 798 transitions. [2019-11-07 00:50:32,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:50:32,962 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 798 transitions. [2019-11-07 00:50:32,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-11-07 00:50:32,967 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:32,968 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:32,968 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:32,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:32,968 INFO L82 PathProgramCache]: Analyzing trace with hash 529348680, now seen corresponding path program 1 times [2019-11-07 00:50:32,969 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:32,969 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889472442] [2019-11-07 00:50:32,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:33,202 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:50:33,202 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889472442] [2019-11-07 00:50:33,202 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:33,203 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:50:33,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637234287] [2019-11-07 00:50:33,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:50:33,203 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:33,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:50:33,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:50:33,204 INFO L87 Difference]: Start difference. First operand 568 states and 798 transitions. Second operand 3 states. [2019-11-07 00:50:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:33,239 INFO L93 Difference]: Finished difference Result 1220 states and 1780 transitions. [2019-11-07 00:50:33,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:50:33,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-11-07 00:50:33,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:33,244 INFO L225 Difference]: With dead ends: 1220 [2019-11-07 00:50:33,244 INFO L226 Difference]: Without dead ends: 717 [2019-11-07 00:50:33,246 INFO L630 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 [2019-11-07 00:50:33,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-11-07 00:50:33,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 716. [2019-11-07 00:50:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2019-11-07 00:50:33,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1050 transitions. [2019-11-07 00:50:33,280 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1050 transitions. Word has length 183 [2019-11-07 00:50:33,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:33,281 INFO L462 AbstractCegarLoop]: Abstraction has 716 states and 1050 transitions. [2019-11-07 00:50:33,281 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:50:33,281 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1050 transitions. [2019-11-07 00:50:33,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-11-07 00:50:33,285 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:33,286 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:33,286 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:33,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:33,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1690978181, now seen corresponding path program 1 times [2019-11-07 00:50:33,287 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:33,287 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619315365] [2019-11-07 00:50:33,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:33,424 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:50:33,424 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619315365] [2019-11-07 00:50:33,424 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:33,425 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:50:33,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799189511] [2019-11-07 00:50:33,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:50:33,426 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:33,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:50:33,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:50:33,426 INFO L87 Difference]: Start difference. First operand 716 states and 1050 transitions. Second operand 3 states. [2019-11-07 00:50:33,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:33,482 INFO L93 Difference]: Finished difference Result 1652 states and 2516 transitions. [2019-11-07 00:50:33,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:50:33,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-11-07 00:50:33,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:33,491 INFO L225 Difference]: With dead ends: 1652 [2019-11-07 00:50:33,492 INFO L226 Difference]: Without dead ends: 1001 [2019-11-07 00:50:33,495 INFO L630 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 [2019-11-07 00:50:33,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2019-11-07 00:50:33,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1000. [2019-11-07 00:50:33,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1000 states. [2019-11-07 00:50:33,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1530 transitions. [2019-11-07 00:50:33,554 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1530 transitions. Word has length 184 [2019-11-07 00:50:33,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:33,554 INFO L462 AbstractCegarLoop]: Abstraction has 1000 states and 1530 transitions. [2019-11-07 00:50:33,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:50:33,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1530 transitions. [2019-11-07 00:50:33,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-11-07 00:50:33,564 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:33,564 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:33,564 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:33,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:33,565 INFO L82 PathProgramCache]: Analyzing trace with hash -897317591, now seen corresponding path program 1 times [2019-11-07 00:50:33,565 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:33,565 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943406419] [2019-11-07 00:50:33,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 00:50:34,010 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943406419] [2019-11-07 00:50:34,010 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:34,010 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 00:50:34,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990949941] [2019-11-07 00:50:34,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 00:50:34,011 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:34,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 00:50:34,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-11-07 00:50:34,012 INFO L87 Difference]: Start difference. First operand 1000 states and 1530 transitions. Second operand 12 states. [2019-11-07 00:50:43,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:43,147 INFO L93 Difference]: Finished difference Result 2626 states and 3638 transitions. [2019-11-07 00:50:43,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-11-07 00:50:43,147 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 187 [2019-11-07 00:50:43,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:43,165 INFO L225 Difference]: With dead ends: 2626 [2019-11-07 00:50:43,165 INFO L226 Difference]: Without dead ends: 2205 [2019-11-07 00:50:43,169 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1310, Unknown=0, NotChecked=0, Total=1640 [2019-11-07 00:50:43,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2019-11-07 00:50:43,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2186. [2019-11-07 00:50:43,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2186 states. [2019-11-07 00:50:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 3040 transitions. [2019-11-07 00:50:43,278 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 3040 transitions. Word has length 187 [2019-11-07 00:50:43,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:43,279 INFO L462 AbstractCegarLoop]: Abstraction has 2186 states and 3040 transitions. [2019-11-07 00:50:43,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 00:50:43,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 3040 transitions. [2019-11-07 00:50:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-11-07 00:50:43,285 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:43,286 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:43,286 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:43,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:43,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1638781378, now seen corresponding path program 1 times [2019-11-07 00:50:43,287 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:43,287 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178498396] [2019-11-07 00:50:43,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:43,643 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 00:50:43,644 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178498396] [2019-11-07 00:50:43,644 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:43,644 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-11-07 00:50:43,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502073606] [2019-11-07 00:50:43,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 00:50:43,645 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:43,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 00:50:43,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-11-07 00:50:43,646 INFO L87 Difference]: Start difference. First operand 2186 states and 3040 transitions. Second operand 16 states. [2019-11-07 00:50:44,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:44,160 INFO L93 Difference]: Finished difference Result 3248 states and 4400 transitions. [2019-11-07 00:50:44,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 00:50:44,161 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 188 [2019-11-07 00:50:44,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:44,173 INFO L225 Difference]: With dead ends: 3248 [2019-11-07 00:50:44,174 INFO L226 Difference]: Without dead ends: 1679 [2019-11-07 00:50:44,180 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-11-07 00:50:44,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2019-11-07 00:50:44,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1561. [2019-11-07 00:50:44,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2019-11-07 00:50:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2240 transitions. [2019-11-07 00:50:44,256 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2240 transitions. Word has length 188 [2019-11-07 00:50:44,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:44,257 INFO L462 AbstractCegarLoop]: Abstraction has 1561 states and 2240 transitions. [2019-11-07 00:50:44,257 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 00:50:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2240 transitions. [2019-11-07 00:50:44,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-11-07 00:50:44,264 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:44,264 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:44,265 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:44,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:44,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1262940159, now seen corresponding path program 1 times [2019-11-07 00:50:44,265 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:44,265 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875269672] [2019-11-07 00:50:44,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:46,453 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-07 00:50:46,454 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875269672] [2019-11-07 00:50:46,454 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785777490] [2019-11-07 00:50:46,454 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 [2019-11-07 00:50:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:46,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 2669 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:50:47,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:50:47,496 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 00:50:47,496 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:50:47,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:50:48,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:50:48,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:50:48,470 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:50:48,470 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:50:48,470 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [55, 9] total 67 [2019-11-07 00:50:48,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186218962] [2019-11-07 00:50:48,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:50:48,473 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:48,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:50:48,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=4248, Unknown=0, NotChecked=0, Total=4422 [2019-11-07 00:50:48,475 INFO L87 Difference]: Start difference. First operand 1561 states and 2240 transitions. Second operand 9 states. [2019-11-07 00:50:50,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:50,732 INFO L93 Difference]: Finished difference Result 3100 states and 4460 transitions. [2019-11-07 00:50:50,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:50:50,732 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 197 [2019-11-07 00:50:50,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:50,742 INFO L225 Difference]: With dead ends: 3100 [2019-11-07 00:50:50,742 INFO L226 Difference]: Without dead ends: 1575 [2019-11-07 00:50:50,749 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 382 SyntacticMatches, 6 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=201, Invalid=4629, Unknown=0, NotChecked=0, Total=4830 [2019-11-07 00:50:50,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2019-11-07 00:50:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1575. [2019-11-07 00:50:50,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1575 states. [2019-11-07 00:50:50,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1575 states to 1575 states and 2258 transitions. [2019-11-07 00:50:50,836 INFO L78 Accepts]: Start accepts. Automaton has 1575 states and 2258 transitions. Word has length 197 [2019-11-07 00:50:50,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:50,836 INFO L462 AbstractCegarLoop]: Abstraction has 1575 states and 2258 transitions. [2019-11-07 00:50:50,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:50:50,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1575 states and 2258 transitions. [2019-11-07 00:50:50,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-11-07 00:50:50,843 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:50,844 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:51,052 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:50:51,052 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:51,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:51,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1259135260, now seen corresponding path program 1 times [2019-11-07 00:50:51,053 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:51,054 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126773814] [2019-11-07 00:50:51,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:53,587 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-07 00:50:53,587 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126773814] [2019-11-07 00:50:53,587 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644441314] [2019-11-07 00:50:53,588 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 [2019-11-07 00:50:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:54,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 2670 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 00:50:54,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:50:54,437 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 00:50:54,437 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:50:54,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:50:54,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:50:55,018 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:50:55,019 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:50:55,019 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [53, 7] total 61 [2019-11-07 00:50:55,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870881336] [2019-11-07 00:50:55,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:50:55,020 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:55,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:50:55,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=3511, Unknown=0, NotChecked=0, Total=3660 [2019-11-07 00:50:55,022 INFO L87 Difference]: Start difference. First operand 1575 states and 2258 transitions. Second operand 7 states. [2019-11-07 00:50:55,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:55,865 INFO L93 Difference]: Finished difference Result 3101 states and 4470 transitions. [2019-11-07 00:50:55,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:50:55,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2019-11-07 00:50:55,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:55,874 INFO L225 Difference]: With dead ends: 3101 [2019-11-07 00:50:55,874 INFO L226 Difference]: Without dead ends: 1577 [2019-11-07 00:50:55,881 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 389 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=167, Invalid=3739, Unknown=0, NotChecked=0, Total=3906 [2019-11-07 00:50:55,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2019-11-07 00:50:55,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1577. [2019-11-07 00:50:55,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1577 states. [2019-11-07 00:50:55,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2261 transitions. [2019-11-07 00:50:55,949 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2261 transitions. Word has length 198 [2019-11-07 00:50:55,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:55,950 INFO L462 AbstractCegarLoop]: Abstraction has 1577 states and 2261 transitions. [2019-11-07 00:50:55,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:50:55,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2261 transitions. [2019-11-07 00:50:55,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-11-07 00:50:55,956 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:55,957 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:56,172 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:50:56,172 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:56,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:56,174 INFO L82 PathProgramCache]: Analyzing trace with hash -766244951, now seen corresponding path program 1 times [2019-11-07 00:50:56,174 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:56,174 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153696607] [2019-11-07 00:50:56,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-07 00:50:58,247 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153696607] [2019-11-07 00:50:58,247 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:58,248 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2019-11-07 00:50:58,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752213914] [2019-11-07 00:50:58,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2019-11-07 00:50:58,249 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:58,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2019-11-07 00:50:58,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=2160, Unknown=0, NotChecked=0, Total=2256 [2019-11-07 00:50:58,250 INFO L87 Difference]: Start difference. First operand 1577 states and 2261 transitions. Second operand 48 states.