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_spec4_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:15:40,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:15:40,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:15:40,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:15:40,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:15:40,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:15:40,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:15:40,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:15:40,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:15:40,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:15:40,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:15:40,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:15:40,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:15:40,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:15:40,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:15:40,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:15:40,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:15:40,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:15:40,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:15:40,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:15:40,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:15:40,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:15:40,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:15:40,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:15:40,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:15:40,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:15:40,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:15:40,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:15:40,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:15:40,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:15:40,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:15:40,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:15:40,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:15:40,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:15:40,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:15:40,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:15:40,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:15:40,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:15:40,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:15:40,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:15:40,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:15:40,693 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 01:15:40,726 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:15:40,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:15:40,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:15:40,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:15:40,731 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:15:40,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:15:40,732 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:15:40,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:15:40,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:15:40,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:15:40,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:15:40,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:15:40,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:15:40,733 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:15:40,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:15:40,733 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:15:40,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:15:40,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:15:40,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:15:40,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:15:40,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:15:40,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:40,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:15:40,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:15:40,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:15:40,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:15:40,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:15:40,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:15:40,738 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 01:15:41,042 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:15:41,056 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:15:41,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:15:41,061 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:15:41,062 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:15:41,062 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product34.cil.c [2019-10-15 01:15:41,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45dfc18fa/0007038613be47039aaba64eb00634f2/FLAGcdca4c3bd [2019-10-15 01:15:41,802 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:15:41,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product34.cil.c [2019-10-15 01:15:41,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45dfc18fa/0007038613be47039aaba64eb00634f2/FLAGcdca4c3bd [2019-10-15 01:15:42,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45dfc18fa/0007038613be47039aaba64eb00634f2 [2019-10-15 01:15:42,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:15:42,066 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:15:42,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:42,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:15:42,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:15:42,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:42" (1/1) ... [2019-10-15 01:15:42,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ba53ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42, skipping insertion in model container [2019-10-15 01:15:42,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:42" (1/1) ... [2019-10-15 01:15:42,084 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:15:42,179 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:15:43,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:43,176 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:15:43,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:43,403 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:15:43,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43 WrapperNode [2019-10-15 01:15:43,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:43,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:15:43,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:15:43,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:15:43,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (1/1) ... [2019-10-15 01:15:43,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:15:43,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:15:43,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:15:43,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:15:43,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (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 01:15:43,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:15:43,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:15:43,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:43,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:15:43,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:15:43,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:15:43,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:43,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:15:43,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:43,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:15:43,754 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:15:43,754 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:15:43,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:15:43,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:15:43,755 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:15:43,756 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:15:43,758 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:15:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:15:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:15:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:15:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:15:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:15:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:15:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:15:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:15:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:15:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:15:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:15:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:15:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:15:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:15:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:15:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:15:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:15:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:15:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:15:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:15:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:15:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:15:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:15:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:15:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:15:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:15:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:15:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:15:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:15:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:15:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:15:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:15:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:15:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:15:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:15:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:15:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:15:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:15:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:15:43,765 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:15:43,766 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:43,766 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:15:43,766 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:15:43,766 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:15:43,766 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:15:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:15:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:15:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:15:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:15:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:15:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:15:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:15:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:15:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:15:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:15:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:15:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:15:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:15:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:15:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:15:43,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:15:43,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:15:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:15:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:15:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:15:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:15:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:15:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:15:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:15:43,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:15:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:15:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:15:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:15:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:15:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:15:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:15:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:15:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:15:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:15:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:15:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:15:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:15:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:15:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:15:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:15:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:15:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:15:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:15:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:15:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:15:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:15:43,778 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:15:43,778 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:15:43,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:43,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:43,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:43,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:15:43,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:15:43,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:15:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:15:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:15:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:15:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:15:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:15:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:15:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:15:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:15:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:15:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:15:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:15:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:15:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:15:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:15:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:15:43,784 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:15:43,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:15:43,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:15:43,785 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:15:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:15:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:15:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:15:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:15:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:15:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:15:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:15:43,796 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:15:43,797 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:15:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:15:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:15:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:15:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:15:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:15:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:15:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:15:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:15:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:15:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:15:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:15:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:15:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:15:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:15:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:15:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:15:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:15:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:15:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:15:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:15:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:15:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:15:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:15:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:15:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:15:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:15:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:15:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:15:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:15:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:15:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:15:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:15:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:15:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:15:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:15:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:15:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:15:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:15:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:15:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:15:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:15:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:15:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:15:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:15:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:15:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:15:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:15:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:15:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:15:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:15:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:15:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:15:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:15:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:15:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:15:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:15:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:15:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:15:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:15:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:15:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:15:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:15:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:15:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:15:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:15:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:15:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:15:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:15:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:15:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:15:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:15:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:15:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:15:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:15:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:15:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:15:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:15:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:15:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:15:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:15:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:15:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:15:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:15:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:15:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:15:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:15:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:15:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:15:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:15:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:15:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:15:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:15:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:15:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:15:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:15:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:15:46,339 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:15:46,340 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:15:46,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:46 BoogieIcfgContainer [2019-10-15 01:15:46,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:15:46,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:15:46,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:15:46,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:15:46,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:15:42" (1/3) ... [2019-10-15 01:15:46,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570df425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:46, skipping insertion in model container [2019-10-15 01:15:46,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:43" (2/3) ... [2019-10-15 01:15:46,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570df425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:46, skipping insertion in model container [2019-10-15 01:15:46,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:46" (3/3) ... [2019-10-15 01:15:46,351 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product34.cil.c [2019-10-15 01:15:46,363 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:15:46,374 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:15:46,388 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:15:46,422 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:15:46,422 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:15:46,422 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:15:46,422 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:15:46,423 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:15:46,425 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:15:46,426 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:15:46,426 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:15:46,469 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states. [2019-10-15 01:15:46,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-15 01:15:46,501 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:46,503 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:46,506 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:46,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:46,513 INFO L82 PathProgramCache]: Analyzing trace with hash 584038483, now seen corresponding path program 1 times [2019-10-15 01:15:46,524 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:46,524 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460295559] [2019-10-15 01:15:46,525 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,525 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:47,306 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460295559] [2019-10-15 01:15:47,306 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:47,307 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:15:47,307 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106620109] [2019-10-15 01:15:47,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:15:47,315 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:47,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:15:47,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:47,331 INFO L87 Difference]: Start difference. First operand 651 states. Second operand 2 states. [2019-10-15 01:15:47,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:47,428 INFO L93 Difference]: Finished difference Result 988 states and 1331 transitions. [2019-10-15 01:15:47,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:15:47,430 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 173 [2019-10-15 01:15:47,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:47,458 INFO L225 Difference]: With dead ends: 988 [2019-10-15 01:15:47,458 INFO L226 Difference]: Without dead ends: 622 [2019-10-15 01:15:47,472 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:47,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-10-15 01:15:47,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2019-10-15 01:15:47,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2019-10-15 01:15:47,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 844 transitions. [2019-10-15 01:15:47,629 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 844 transitions. Word has length 173 [2019-10-15 01:15:47,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:47,634 INFO L462 AbstractCegarLoop]: Abstraction has 622 states and 844 transitions. [2019-10-15 01:15:47,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:15:47,634 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 844 transitions. [2019-10-15 01:15:47,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 01:15:47,643 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:47,643 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:47,644 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:47,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:47,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1802223721, now seen corresponding path program 1 times [2019-10-15 01:15:47,644 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:47,645 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198956768] [2019-10-15 01:15:47,645 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:47,645 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:47,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:47,937 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:47,938 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198956768] [2019-10-15 01:15:47,938 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:47,938 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:47,939 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084337015] [2019-10-15 01:15:47,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:47,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:47,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:47,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:47,947 INFO L87 Difference]: Start difference. First operand 622 states and 844 transitions. Second operand 3 states. [2019-10-15 01:15:48,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:48,057 INFO L93 Difference]: Finished difference Result 971 states and 1296 transitions. [2019-10-15 01:15:48,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:48,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-15 01:15:48,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:48,069 INFO L225 Difference]: With dead ends: 971 [2019-10-15 01:15:48,069 INFO L226 Difference]: Without dead ends: 625 [2019-10-15 01:15:48,072 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:48,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2019-10-15 01:15:48,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 624. [2019-10-15 01:15:48,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2019-10-15 01:15:48,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 846 transitions. [2019-10-15 01:15:48,116 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 846 transitions. Word has length 174 [2019-10-15 01:15:48,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:48,118 INFO L462 AbstractCegarLoop]: Abstraction has 624 states and 846 transitions. [2019-10-15 01:15:48,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:48,118 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 846 transitions. [2019-10-15 01:15:48,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 01:15:48,126 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:48,126 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:15:48,127 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:48,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:48,127 INFO L82 PathProgramCache]: Analyzing trace with hash 617230005, now seen corresponding path program 1 times [2019-10-15 01:15:48,127 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:48,128 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660899610] [2019-10-15 01:15:48,128 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:48,128 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:48,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:48,404 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:48,404 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660899610] [2019-10-15 01:15:48,405 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:48,405 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:48,405 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666025358] [2019-10-15 01:15:48,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:48,406 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:48,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:48,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:48,407 INFO L87 Difference]: Start difference. First operand 624 states and 846 transitions. Second operand 3 states. [2019-10-15 01:15:48,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:48,452 INFO L93 Difference]: Finished difference Result 1226 states and 1693 transitions. [2019-10-15 01:15:48,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:48,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-15 01:15:48,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:48,458 INFO L225 Difference]: With dead ends: 1226 [2019-10-15 01:15:48,458 INFO L226 Difference]: Without dead ends: 667 [2019-10-15 01:15:48,460 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:48,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-10-15 01:15:48,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 666. [2019-10-15 01:15:48,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2019-10-15 01:15:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 918 transitions. [2019-10-15 01:15:48,487 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 918 transitions. Word has length 180 [2019-10-15 01:15:48,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:48,488 INFO L462 AbstractCegarLoop]: Abstraction has 666 states and 918 transitions. [2019-10-15 01:15:48,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:48,488 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 918 transitions. [2019-10-15 01:15:48,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-15 01:15:48,492 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:48,492 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:15:48,492 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:48,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:48,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1159489603, now seen corresponding path program 1 times [2019-10-15 01:15:48,493 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:48,493 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416268625] [2019-10-15 01:15:48,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:48,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:48,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:48,751 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416268625] [2019-10-15 01:15:48,752 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:48,752 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:15:48,753 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75603109] [2019-10-15 01:15:48,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:48,754 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:48,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:48,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:15:48,755 INFO L87 Difference]: Start difference. First operand 666 states and 918 transitions. Second operand 7 states. [2019-10-15 01:15:52,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:52,972 INFO L93 Difference]: Finished difference Result 1350 states and 1817 transitions. [2019-10-15 01:15:52,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:15:52,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2019-10-15 01:15:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:52,980 INFO L225 Difference]: With dead ends: 1350 [2019-10-15 01:15:52,981 INFO L226 Difference]: Without dead ends: 1015 [2019-10-15 01:15:52,982 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:15:52,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2019-10-15 01:15:53,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1006. [2019-10-15 01:15:53,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2019-10-15 01:15:53,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1364 transitions. [2019-10-15 01:15:53,034 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1364 transitions. Word has length 181 [2019-10-15 01:15:53,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:53,035 INFO L462 AbstractCegarLoop]: Abstraction has 1006 states and 1364 transitions. [2019-10-15 01:15:53,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:53,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1364 transitions. [2019-10-15 01:15:53,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 01:15:53,039 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:53,039 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:15:53,039 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:53,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:53,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1387990107, now seen corresponding path program 1 times [2019-10-15 01:15:53,040 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:53,040 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780257709] [2019-10-15 01:15:53,040 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:53,041 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:53,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:53,431 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:53,432 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780257709] [2019-10-15 01:15:53,432 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:53,432 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-15 01:15:53,433 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351205722] [2019-10-15 01:15:53,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-15 01:15:53,434 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:53,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-15 01:15:53,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:15:53,435 INFO L87 Difference]: Start difference. First operand 1006 states and 1364 transitions. Second operand 20 states. [2019-10-15 01:15:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:54,072 INFO L93 Difference]: Finished difference Result 1797 states and 2425 transitions. [2019-10-15 01:15:54,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-15 01:15:54,074 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 182 [2019-10-15 01:15:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:54,081 INFO L225 Difference]: With dead ends: 1797 [2019-10-15 01:15:54,081 INFO L226 Difference]: Without dead ends: 1116 [2019-10-15 01:15:54,084 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:54,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2019-10-15 01:15:54,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1114. [2019-10-15 01:15:54,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2019-10-15 01:15:54,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1517 transitions. [2019-10-15 01:15:54,134 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1517 transitions. Word has length 182 [2019-10-15 01:15:54,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:54,135 INFO L462 AbstractCegarLoop]: Abstraction has 1114 states and 1517 transitions. [2019-10-15 01:15:54,135 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-15 01:15:54,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1517 transitions. [2019-10-15 01:15:54,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:15:54,140 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:54,140 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:54,140 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:54,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:54,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1283396091, now seen corresponding path program 1 times [2019-10-15 01:15:54,141 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:54,141 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441044723] [2019-10-15 01:15:54,142 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:54,142 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:54,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:54,404 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:54,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441044723] [2019-10-15 01:15:54,406 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:54,406 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:15:54,406 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785957871] [2019-10-15 01:15:54,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:15:54,407 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:54,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:15:54,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:15:54,408 INFO L87 Difference]: Start difference. First operand 1114 states and 1517 transitions. Second operand 8 states. [2019-10-15 01:15:55,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:55,824 INFO L93 Difference]: Finished difference Result 2531 states and 3406 transitions. [2019-10-15 01:15:55,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:55,825 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2019-10-15 01:15:55,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:55,848 INFO L225 Difference]: With dead ends: 2531 [2019-10-15 01:15:55,848 INFO L226 Difference]: Without dead ends: 1942 [2019-10-15 01:15:55,857 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:15:55,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2019-10-15 01:15:56,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1923. [2019-10-15 01:15:56,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1923 states. [2019-10-15 01:15:56,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2602 transitions. [2019-10-15 01:15:56,043 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2602 transitions. Word has length 191 [2019-10-15 01:15:56,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:56,044 INFO L462 AbstractCegarLoop]: Abstraction has 1923 states and 2602 transitions. [2019-10-15 01:15:56,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:15:56,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2602 transitions. [2019-10-15 01:15:56,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:15:56,052 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:56,053 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:56,053 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:56,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:56,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1332265395, now seen corresponding path program 1 times [2019-10-15 01:15:56,054 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:56,054 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477802339] [2019-10-15 01:15:56,055 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:56,055 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:56,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:56,749 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:56,749 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477802339] [2019-10-15 01:15:56,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:56,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:15:56,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145972770] [2019-10-15 01:15:56,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:15:56,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:56,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:15:56,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:15:56,752 INFO L87 Difference]: Start difference. First operand 1923 states and 2602 transitions. Second operand 19 states. [2019-10-15 01:15:57,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:57,825 INFO L93 Difference]: Finished difference Result 2696 states and 3632 transitions. [2019-10-15 01:15:57,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-15 01:15:57,825 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 192 [2019-10-15 01:15:57,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:57,845 INFO L225 Difference]: With dead ends: 2696 [2019-10-15 01:15:57,845 INFO L226 Difference]: Without dead ends: 1922 [2019-10-15 01:15:57,850 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:15:57,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2019-10-15 01:15:57,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1921. [2019-10-15 01:15:57,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1921 states. [2019-10-15 01:15:57,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2597 transitions. [2019-10-15 01:15:57,953 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2597 transitions. Word has length 192 [2019-10-15 01:15:57,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:57,954 INFO L462 AbstractCegarLoop]: Abstraction has 1921 states and 2597 transitions. [2019-10-15 01:15:57,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:15:57,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2597 transitions. [2019-10-15 01:15:57,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:15:57,959 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:57,960 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:57,960 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:57,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:57,961 INFO L82 PathProgramCache]: Analyzing trace with hash 732896675, now seen corresponding path program 2 times [2019-10-15 01:15:57,961 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:57,961 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659403978] [2019-10-15 01:15:57,961 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:57,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:57,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:58,257 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:58,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659403978] [2019-10-15 01:15:58,258 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887380692] [2019-10-15 01:15:58,258 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:58,766 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:15:58,766 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:15:58,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:15:58,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:59,038 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:15:59,038 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:15:59,570 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:59,571 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-15 01:15:59,572 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509156309] [2019-10-15 01:15:59,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:15:59,574 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:59,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:15:59,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:15:59,575 INFO L87 Difference]: Start difference. First operand 1921 states and 2597 transitions. Second operand 14 states. [2019-10-15 01:16:02,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:02,174 INFO L93 Difference]: Finished difference Result 5735 states and 7790 transitions. [2019-10-15 01:16:02,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:16:02,174 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 192 [2019-10-15 01:16:02,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:02,220 INFO L225 Difference]: With dead ends: 5735 [2019-10-15 01:16:02,220 INFO L226 Difference]: Without dead ends: 5732 [2019-10-15 01:16:02,225 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 378 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:16:02,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5732 states. [2019-10-15 01:16:02,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5732 to 4099. [2019-10-15 01:16:02,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4099 states. [2019-10-15 01:16:02,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4099 states to 4099 states and 5625 transitions. [2019-10-15 01:16:02,576 INFO L78 Accepts]: Start accepts. Automaton has 4099 states and 5625 transitions. Word has length 192 [2019-10-15 01:16:02,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:02,576 INFO L462 AbstractCegarLoop]: Abstraction has 4099 states and 5625 transitions. [2019-10-15 01:16:02,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:16:02,577 INFO L276 IsEmpty]: Start isEmpty. Operand 4099 states and 5625 transitions. [2019-10-15 01:16:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:16:02,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:02,587 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:02,793 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:02,794 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:02,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:02,795 INFO L82 PathProgramCache]: Analyzing trace with hash 439688581, now seen corresponding path program 1 times [2019-10-15 01:16:02,796 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:02,796 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603671182] [2019-10-15 01:16:02,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:02,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:02,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:03,056 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:16:03,056 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603671182] [2019-10-15 01:16:03,056 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734853643] [2019-10-15 01:16:03,057 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 01:16:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:03,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 2962 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:16:03,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:16:04,009 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:04,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:04,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:04,409 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:16:04,410 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:16:04,410 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-10-15 01:16:04,410 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296896163] [2019-10-15 01:16:04,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:16:04,412 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:04,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:16:04,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:16:04,413 INFO L87 Difference]: Start difference. First operand 4099 states and 5625 transitions. Second operand 7 states. [2019-10-15 01:16:06,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:06,484 INFO L93 Difference]: Finished difference Result 8171 states and 11221 transitions. [2019-10-15 01:16:06,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:06,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2019-10-15 01:16:06,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:06,513 INFO L225 Difference]: With dead ends: 8171 [2019-10-15 01:16:06,513 INFO L226 Difference]: Without dead ends: 4111 [2019-10-15 01:16:06,529 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 379 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:16:06,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4111 states. [2019-10-15 01:16:06,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4111 to 4101. [2019-10-15 01:16:06,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4101 states. [2019-10-15 01:16:06,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 5628 transitions. [2019-10-15 01:16:06,732 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 5628 transitions. Word has length 195 [2019-10-15 01:16:06,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:06,733 INFO L462 AbstractCegarLoop]: Abstraction has 4101 states and 5628 transitions. [2019-10-15 01:16:06,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:16:06,733 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 5628 transitions. [2019-10-15 01:16:06,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:16:06,749 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:06,750 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:06,959 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:06,959 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:06,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:06,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1294950284, now seen corresponding path program 1 times [2019-10-15 01:16:06,960 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:06,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757867061] [2019-10-15 01:16:06,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:07,138 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:16:07,143 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757867061] [2019-10-15 01:16:07,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622655432] [2019-10-15 01:16:07,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:07,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 2960 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:16:07,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:07,984 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:16:07,984 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:08,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:16:08,373 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:08,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:08,531 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:16:08,531 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:16:08,532 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 20 [2019-10-15 01:16:08,532 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062953659] [2019-10-15 01:16:08,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:16:08,533 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:08,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:16:08,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:16:08,534 INFO L87 Difference]: Start difference. First operand 4101 states and 5628 transitions. Second operand 9 states. [2019-10-15 01:16:11,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:11,035 INFO L93 Difference]: Finished difference Result 8178 states and 11231 transitions. [2019-10-15 01:16:11,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:16:11,036 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 196 [2019-10-15 01:16:11,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:11,070 INFO L225 Difference]: With dead ends: 8178 [2019-10-15 01:16:11,070 INFO L226 Difference]: Without dead ends: 4119 [2019-10-15 01:16:11,086 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 376 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:16:11,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4119 states. [2019-10-15 01:16:11,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4119 to 4117. [2019-10-15 01:16:11,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4117 states. [2019-10-15 01:16:11,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4117 states to 4117 states and 5644 transitions. [2019-10-15 01:16:11,368 INFO L78 Accepts]: Start accepts. Automaton has 4117 states and 5644 transitions. Word has length 196 [2019-10-15 01:16:11,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:11,369 INFO L462 AbstractCegarLoop]: Abstraction has 4117 states and 5644 transitions. [2019-10-15 01:16:11,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:16:11,369 INFO L276 IsEmpty]: Start isEmpty. Operand 4117 states and 5644 transitions. [2019-10-15 01:16:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:16:11,385 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:11,385 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:11,596 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:11,597 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:11,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:11,597 INFO L82 PathProgramCache]: Analyzing trace with hash 667475302, now seen corresponding path program 1 times [2019-10-15 01:16:11,598 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:11,598 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447354359] [2019-10-15 01:16:11,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:11,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:11,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:16:11,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447354359] [2019-10-15 01:16:11,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569867341] [2019-10-15 01:16:11,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:12,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 2961 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:16:12,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:12,627 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:16:12,628 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:12,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:16:13,008 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:13,075 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms