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_spec0_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:12:00,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:12:00,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:12:00,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:12:00,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:12:00,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:12:00,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:12:00,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:12:00,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:12:00,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:12:00,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:12:00,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:12:00,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:12:00,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:12:00,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:12:00,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:12:00,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:12:00,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:12:00,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:12:00,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:12:00,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:12:00,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:12:00,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:12:00,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:12:00,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:12:00,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:12:00,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:12:00,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:12:00,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:12:00,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:12:00,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:12:00,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:12:00,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:12:00,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:12:00,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:12:00,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:12:00,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:12:00,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:12:00,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:12:00,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:12:00,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:12:00,782 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:12:00,802 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:12:00,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:12:00,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:12:00,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:12:00,805 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:12:00,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:12:00,805 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:12:00,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:12:00,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:12:00,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:12:00,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:12:00,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:12:00,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:12:00,809 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:12:00,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:12:00,809 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:12:00,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:12:00,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:12:00,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:12:00,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:12:00,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:12:00,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:00,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:12:00,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:12:00,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:12:00,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:12:00,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:12:00,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:12:00,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:12:01,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:12:01,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:12:01,115 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:12:01,116 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:12:01,117 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:12:01,117 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product34.cil.c [2019-10-15 01:12:01,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8df4e499/ca01fc12cf7143728dee71bc048e2bfe/FLAG785989dd9 [2019-10-15 01:12:01,814 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:12:01,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product34.cil.c [2019-10-15 01:12:01,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8df4e499/ca01fc12cf7143728dee71bc048e2bfe/FLAG785989dd9 [2019-10-15 01:12:02,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8df4e499/ca01fc12cf7143728dee71bc048e2bfe [2019-10-15 01:12:02,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:12:02,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:12:02,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:02,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:12:02,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:12:02,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:02" (1/1) ... [2019-10-15 01:12:02,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21180631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:02, skipping insertion in model container [2019-10-15 01:12:02,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:02" (1/1) ... [2019-10-15 01:12:02,111 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:12:02,204 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:12:02,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:02,950 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:12:03,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:03,307 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:12:03,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:03 WrapperNode [2019-10-15 01:12:03,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:03,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:12:03,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:12:03,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:12:03,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:03" (1/1) ... [2019-10-15 01:12:03,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:03" (1/1) ... [2019-10-15 01:12:03,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:03" (1/1) ... [2019-10-15 01:12:03,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:03" (1/1) ... [2019-10-15 01:12:03,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:03" (1/1) ... [2019-10-15 01:12:03,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:03" (1/1) ... [2019-10-15 01:12:03,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:03" (1/1) ... [2019-10-15 01:12:03,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:12:03,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:12:03,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:12:03,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:12:03,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:12:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:12:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:12:03,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:12:03,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:03,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:12:03,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:03,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:12:03,622 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:12:03,622 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:12:03,622 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:12:03,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:12:03,623 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:12:03,623 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:12:03,624 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:12:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:12:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:12:03,626 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:12:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:12:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:12:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:12:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:12:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:12:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:12:03,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:12:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:12:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:12:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:12:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:12:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:12:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:12:03,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:12:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:12:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:12:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:12:03,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:12:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:12:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:12:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:12:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:12:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:12:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:12:03,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:12:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:12:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:12:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:12:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:12:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:12:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:12:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:12:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:12:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:12:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:12:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:12:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:12:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:12:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:12:03,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:12:03,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:03,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:03,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:03,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:12:03,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:12:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:12:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:12:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:12:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:12:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:12:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:12:03,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:12:03,635 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:12:03,635 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:12:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:12:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:12:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:12:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:12:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:12:03,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:12:03,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:12:03,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:12:03,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:12:03,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:12:03,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:12:03,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:12:03,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:12:03,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:12:03,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:12:03,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:12:03,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:12:03,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:12:03,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:12:03,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:12:03,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:12:03,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:12:03,641 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:12:03,641 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:12:03,641 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:12:03,641 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:12:03,641 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:12:03,642 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:12:03,642 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:12:03,642 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:12:03,642 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:12:03,642 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:12:03,642 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:12:03,643 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:12:03,643 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:12:03,643 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:12:03,643 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:12:03,643 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:12:03,643 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:12:03,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:12:03,644 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:12:03,644 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:12:03,644 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:12:03,644 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:12:03,644 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:12:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:12:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:12:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:12:03,645 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:12:03,646 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:12:03,646 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:12:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:12:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:12:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:12:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:12:03,647 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:12:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:12:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:12:03,648 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:12:03,649 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:12:03,649 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:12:03,649 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:12:03,649 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:12:03,650 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:12:03,653 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:12:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:12:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:12:03,654 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:12:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:12:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:12:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:12:03,663 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:12:03,663 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:12:03,663 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:12:03,663 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:12:03,663 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:12:03,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:12:03,664 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:12:03,664 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:12:03,664 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:12:03,664 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:12:03,664 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:12:03,665 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:12:03,665 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:12:03,665 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:12:03,666 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:12:03,666 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:12:03,666 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:12:03,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:12:03,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:03,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:03,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:12:03,667 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:12:03,667 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:12:03,667 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:12:03,667 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:12:03,667 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:12:03,667 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:12:03,668 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:12:03,668 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:12:03,668 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:12:03,668 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:12:03,668 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:12:03,668 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:12:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:12:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:12:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:12:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:12:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:12:03,669 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:12:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:12:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:12:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:12:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:12:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:12:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:03,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:12:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:12:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:12:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:12:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:12:03,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:12:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:12:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:12:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:12:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:12:03,672 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:12:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:12:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:12:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:12:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:12:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:12:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:12:03,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:12:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:12:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:12:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:12:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:12:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:12:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:12:03,674 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:12:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:12:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:12:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:12:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:12:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:12:03,675 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:12:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:12:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:12:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:12:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:12:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:12:03,676 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:12:03,677 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:12:03,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:12:03,677 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:12:03,677 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:12:03,677 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:12:03,677 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:12:03,677 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:12:03,678 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:12:03,678 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:12:03,678 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:12:03,678 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:12:03,678 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:12:03,678 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:12:03,679 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:12:03,679 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:12:03,679 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:12:03,679 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:12:03,679 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:12:03,680 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:12:03,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:12:03,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:12:03,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:12:06,035 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:12:06,035 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:12:06,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:06 BoogieIcfgContainer [2019-10-15 01:12:06,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:12:06,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:12:06,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:12:06,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:12:06,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:12:02" (1/3) ... [2019-10-15 01:12:06,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584531df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:06, skipping insertion in model container [2019-10-15 01:12:06,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:03" (2/3) ... [2019-10-15 01:12:06,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584531df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:06, skipping insertion in model container [2019-10-15 01:12:06,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:06" (3/3) ... [2019-10-15 01:12:06,046 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product34.cil.c [2019-10-15 01:12:06,056 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:12:06,066 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:12:06,078 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:12:06,118 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:12:06,118 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:12:06,118 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:12:06,119 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:12:06,119 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:12:06,121 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:12:06,122 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:12:06,122 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:12:06,168 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states. [2019-10-15 01:12:06,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-15 01:12:06,207 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:06,210 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 01:12:06,214 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:06,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:06,221 INFO L82 PathProgramCache]: Analyzing trace with hash -954538769, now seen corresponding path program 1 times [2019-10-15 01:12:06,231 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:06,232 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684065657] [2019-10-15 01:12:06,232 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:06,232 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:06,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:06,936 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 01:12:06,937 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684065657] [2019-10-15 01:12:06,938 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:06,938 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:12:06,939 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328736612] [2019-10-15 01:12:06,947 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:12:06,948 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:06,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:12:06,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:06,967 INFO L87 Difference]: Start difference. First operand 648 states. Second operand 2 states. [2019-10-15 01:12:07,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:07,062 INFO L93 Difference]: Finished difference Result 982 states and 1325 transitions. [2019-10-15 01:12:07,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:12:07,067 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 230 [2019-10-15 01:12:07,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:07,100 INFO L225 Difference]: With dead ends: 982 [2019-10-15 01:12:07,100 INFO L226 Difference]: Without dead ends: 619 [2019-10-15 01:12:07,108 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:07,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-15 01:12:07,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2019-10-15 01:12:07,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-15 01:12:07,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 839 transitions. [2019-10-15 01:12:07,225 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 839 transitions. Word has length 230 [2019-10-15 01:12:07,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:07,230 INFO L462 AbstractCegarLoop]: Abstraction has 619 states and 839 transitions. [2019-10-15 01:12:07,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:12:07,230 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 839 transitions. [2019-10-15 01:12:07,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-15 01:12:07,239 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:07,240 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 01:12:07,240 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:07,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:07,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1328868088, now seen corresponding path program 1 times [2019-10-15 01:12:07,241 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:07,241 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492011126] [2019-10-15 01:12:07,241 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:07,241 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:07,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 01:12:07,664 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492011126] [2019-10-15 01:12:07,664 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:07,664 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:07,665 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679529545] [2019-10-15 01:12:07,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:07,674 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:07,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:07,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:07,675 INFO L87 Difference]: Start difference. First operand 619 states and 839 transitions. Second operand 3 states. [2019-10-15 01:12:07,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:07,804 INFO L93 Difference]: Finished difference Result 965 states and 1286 transitions. [2019-10-15 01:12:07,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:07,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-15 01:12:07,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:07,822 INFO L225 Difference]: With dead ends: 965 [2019-10-15 01:12:07,823 INFO L226 Difference]: Without dead ends: 622 [2019-10-15 01:12:07,828 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:07,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-10-15 01:12:07,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 621. [2019-10-15 01:12:07,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2019-10-15 01:12:07,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 841 transitions. [2019-10-15 01:12:07,899 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 841 transitions. Word has length 231 [2019-10-15 01:12:07,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:07,901 INFO L462 AbstractCegarLoop]: Abstraction has 621 states and 841 transitions. [2019-10-15 01:12:07,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:07,901 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 841 transitions. [2019-10-15 01:12:07,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-15 01:12:07,915 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:07,915 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:07,916 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:07,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:07,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1599924580, now seen corresponding path program 1 times [2019-10-15 01:12:07,916 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:07,917 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200597853] [2019-10-15 01:12:07,917 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:07,917 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:07,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:08,198 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 01:12:08,199 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200597853] [2019-10-15 01:12:08,199 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:08,199 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:08,200 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418887457] [2019-10-15 01:12:08,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:08,203 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:08,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:08,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:08,204 INFO L87 Difference]: Start difference. First operand 621 states and 841 transitions. Second operand 3 states. [2019-10-15 01:12:08,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:08,263 INFO L93 Difference]: Finished difference Result 1220 states and 1683 transitions. [2019-10-15 01:12:08,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:08,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-15 01:12:08,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:08,315 INFO L225 Difference]: With dead ends: 1220 [2019-10-15 01:12:08,316 INFO L226 Difference]: Without dead ends: 664 [2019-10-15 01:12:08,318 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:08,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2019-10-15 01:12:08,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 663. [2019-10-15 01:12:08,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2019-10-15 01:12:08,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 913 transitions. [2019-10-15 01:12:08,350 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 913 transitions. Word has length 237 [2019-10-15 01:12:08,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:08,353 INFO L462 AbstractCegarLoop]: Abstraction has 663 states and 913 transitions. [2019-10-15 01:12:08,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:08,357 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 913 transitions. [2019-10-15 01:12:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-15 01:12:08,362 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:08,362 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:08,362 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:08,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:08,363 INFO L82 PathProgramCache]: Analyzing trace with hash -847945659, now seen corresponding path program 1 times [2019-10-15 01:12:08,364 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:08,364 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616899104] [2019-10-15 01:12:08,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:08,365 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:08,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-15 01:12:08,862 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616899104] [2019-10-15 01:12:08,862 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:08,862 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:12:08,863 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249134354] [2019-10-15 01:12:08,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:12:08,864 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:08,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:12:08,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:08,865 INFO L87 Difference]: Start difference. First operand 663 states and 913 transitions. Second operand 19 states. [2019-10-15 01:12:14,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:14,891 INFO L93 Difference]: Finished difference Result 2349 states and 3260 transitions. [2019-10-15 01:12:14,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:12:14,892 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 238 [2019-10-15 01:12:14,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:14,907 INFO L225 Difference]: With dead ends: 2349 [2019-10-15 01:12:14,907 INFO L226 Difference]: Without dead ends: 2019 [2019-10-15 01:12:14,910 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:12:14,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2019-10-15 01:12:14,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 1982. [2019-10-15 01:12:14,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2019-10-15 01:12:15,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 2755 transitions. [2019-10-15 01:12:15,012 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 2755 transitions. Word has length 238 [2019-10-15 01:12:15,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:15,013 INFO L462 AbstractCegarLoop]: Abstraction has 1982 states and 2755 transitions. [2019-10-15 01:12:15,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:12:15,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 2755 transitions. [2019-10-15 01:12:15,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 01:12:15,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:15,022 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:15,023 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:15,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:15,023 INFO L82 PathProgramCache]: Analyzing trace with hash 675164652, now seen corresponding path program 1 times [2019-10-15 01:12:15,023 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:15,023 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186186386] [2019-10-15 01:12:15,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:15,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:15,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:15,347 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 01:12:15,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186186386] [2019-10-15 01:12:15,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:15,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:12:15,350 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329371917] [2019-10-15 01:12:15,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:12:15,351 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:15,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:12:15,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:12:15,352 INFO L87 Difference]: Start difference. First operand 1982 states and 2755 transitions. Second operand 13 states. [2019-10-15 01:12:15,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:15,984 INFO L93 Difference]: Finished difference Result 3503 states and 4864 transitions. [2019-10-15 01:12:15,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:12:15,984 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 239 [2019-10-15 01:12:15,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:15,998 INFO L225 Difference]: With dead ends: 3503 [2019-10-15 01:12:15,998 INFO L226 Difference]: Without dead ends: 2116 [2019-10-15 01:12:16,004 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:12:16,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2019-10-15 01:12:16,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 2116. [2019-10-15 01:12:16,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2116 states. [2019-10-15 01:12:16,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2116 states to 2116 states and 2972 transitions. [2019-10-15 01:12:16,129 INFO L78 Accepts]: Start accepts. Automaton has 2116 states and 2972 transitions. Word has length 239 [2019-10-15 01:12:16,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:16,133 INFO L462 AbstractCegarLoop]: Abstraction has 2116 states and 2972 transitions. [2019-10-15 01:12:16,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:12:16,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2116 states and 2972 transitions. [2019-10-15 01:12:16,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 01:12:16,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:16,146 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:16,147 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:16,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:16,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1031231462, now seen corresponding path program 1 times [2019-10-15 01:12:16,148 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:16,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244303147] [2019-10-15 01:12:16,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:16,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:16,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-15 01:12:16,657 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244303147] [2019-10-15 01:12:16,657 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:16,657 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:12:16,657 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685695760] [2019-10-15 01:12:16,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:12:16,659 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:16,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:12:16,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:12:16,660 INFO L87 Difference]: Start difference. First operand 2116 states and 2972 transitions. Second operand 18 states. [2019-10-15 01:12:17,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:17,412 INFO L93 Difference]: Finished difference Result 3633 states and 5058 transitions. [2019-10-15 01:12:17,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:12:17,412 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 239 [2019-10-15 01:12:17,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:17,436 INFO L225 Difference]: With dead ends: 3633 [2019-10-15 01:12:17,436 INFO L226 Difference]: Without dead ends: 2172 [2019-10-15 01:12:17,443 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:12:17,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2019-10-15 01:12:17,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2172. [2019-10-15 01:12:17,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2172 states. [2019-10-15 01:12:17,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 3037 transitions. [2019-10-15 01:12:17,599 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 3037 transitions. Word has length 239 [2019-10-15 01:12:17,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:17,601 INFO L462 AbstractCegarLoop]: Abstraction has 2172 states and 3037 transitions. [2019-10-15 01:12:17,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:12:17,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 3037 transitions. [2019-10-15 01:12:17,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 01:12:17,613 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:17,613 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:17,617 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:17,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:17,618 INFO L82 PathProgramCache]: Analyzing trace with hash -825982965, now seen corresponding path program 1 times [2019-10-15 01:12:17,618 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:17,618 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424995955] [2019-10-15 01:12:17,618 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:17,618 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:17,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-15 01:12:17,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424995955] [2019-10-15 01:12:17,988 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:17,989 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:12:17,989 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955299118] [2019-10-15 01:12:17,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:12:17,991 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:17,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:12:17,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:17,992 INFO L87 Difference]: Start difference. First operand 2172 states and 3037 transitions. Second operand 15 states. [2019-10-15 01:12:22,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:22,136 INFO L93 Difference]: Finished difference Result 3771 states and 5260 transitions. [2019-10-15 01:12:22,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:12:22,146 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 239 [2019-10-15 01:12:22,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:22,160 INFO L225 Difference]: With dead ends: 3771 [2019-10-15 01:12:22,160 INFO L226 Difference]: Without dead ends: 2274 [2019-10-15 01:12:22,166 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:12:22,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2019-10-15 01:12:22,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2242. [2019-10-15 01:12:22,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2242 states. [2019-10-15 01:12:22,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 3152 transitions. [2019-10-15 01:12:22,262 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 3152 transitions. Word has length 239 [2019-10-15 01:12:22,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:22,263 INFO L462 AbstractCegarLoop]: Abstraction has 2242 states and 3152 transitions. [2019-10-15 01:12:22,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:12:22,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 3152 transitions. [2019-10-15 01:12:22,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 01:12:22,272 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:22,272 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:22,273 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:22,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:22,273 INFO L82 PathProgramCache]: Analyzing trace with hash 2064421242, now seen corresponding path program 1 times [2019-10-15 01:12:22,274 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:22,274 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138215135] [2019-10-15 01:12:22,274 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:22,274 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:22,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:22,510 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 01:12:22,511 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138215135] [2019-10-15 01:12:22,511 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:22,511 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:22,511 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670971336] [2019-10-15 01:12:22,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:22,512 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:22,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:22,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:22,513 INFO L87 Difference]: Start difference. First operand 2242 states and 3152 transitions. Second operand 5 states. [2019-10-15 01:12:24,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:24,159 INFO L93 Difference]: Finished difference Result 5722 states and 8132 transitions. [2019-10-15 01:12:24,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:12:24,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 239 [2019-10-15 01:12:24,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:24,196 INFO L225 Difference]: With dead ends: 5722 [2019-10-15 01:12:24,196 INFO L226 Difference]: Without dead ends: 4925 [2019-10-15 01:12:24,205 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:12:24,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4925 states. [2019-10-15 01:12:24,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4925 to 4911. [2019-10-15 01:12:24,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4911 states. [2019-10-15 01:12:24,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4911 states to 4911 states and 6970 transitions. [2019-10-15 01:12:24,531 INFO L78 Accepts]: Start accepts. Automaton has 4911 states and 6970 transitions. Word has length 239 [2019-10-15 01:12:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:24,532 INFO L462 AbstractCegarLoop]: Abstraction has 4911 states and 6970 transitions. [2019-10-15 01:12:24,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand 4911 states and 6970 transitions. [2019-10-15 01:12:24,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 01:12:24,548 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:24,548 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:24,549 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:24,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:24,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1554853445, now seen corresponding path program 1 times [2019-10-15 01:12:24,550 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:24,550 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959018760] [2019-10-15 01:12:24,550 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:24,550 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:24,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:24,823 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:24,824 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959018760] [2019-10-15 01:12:24,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229077315] [2019-10-15 01:12:24,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:12:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:25,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 3214 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:12:25,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:12:25,735 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:12:25,736 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:12:26,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:12:26,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:12:26,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:12:26,579 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:26,579 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:12:26,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 20 [2019-10-15 01:12:26,580 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929991092] [2019-10-15 01:12:26,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:26,581 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:26,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:26,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:12:26,582 INFO L87 Difference]: Start difference. First operand 4911 states and 6970 transitions. Second operand 9 states. [2019-10-15 01:12:29,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:29,755 INFO L93 Difference]: Finished difference Result 9800 states and 13920 transitions. [2019-10-15 01:12:29,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:29,756 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 239 [2019-10-15 01:12:29,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:29,794 INFO L225 Difference]: With dead ends: 9800 [2019-10-15 01:12:29,794 INFO L226 Difference]: Without dead ends: 4925 [2019-10-15 01:12:29,815 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 472 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:12:29,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4925 states. [2019-10-15 01:12:30,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4925 to 4925. [2019-10-15 01:12:30,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4925 states. [2019-10-15 01:12:30,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4925 states to 4925 states and 6988 transitions. [2019-10-15 01:12:30,277 INFO L78 Accepts]: Start accepts. Automaton has 4925 states and 6988 transitions. Word has length 239 [2019-10-15 01:12:30,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:30,277 INFO L462 AbstractCegarLoop]: Abstraction has 4925 states and 6988 transitions. [2019-10-15 01:12:30,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:30,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4925 states and 6988 transitions. [2019-10-15 01:12:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-15 01:12:30,295 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:30,296 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:30,507 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:12:30,507 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:30,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:30,508 INFO L82 PathProgramCache]: Analyzing trace with hash -354241456, now seen corresponding path program 1 times [2019-10-15 01:12:30,508 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:30,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27294920] [2019-10-15 01:12:30,510 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:30,510 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:30,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:30,882 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:30,883 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27294920] [2019-10-15 01:12:30,883 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826412744] [2019-10-15 01:12:30,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:12:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:31,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 3215 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:12:31,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:12:31,741 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:12:31,741 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:12:32,008 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:12:32,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:12:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:32,228 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:12:32,229 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-10-15 01:12:32,229 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48318262] [2019-10-15 01:12:32,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:12:32,230 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:32,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:12:32,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:12:32,231 INFO L87 Difference]: Start difference. First operand 4925 states and 6988 transitions. Second operand 7 states.