/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:47:42,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:47:42,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:47:42,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:47:42,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:47:42,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:47:42,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:47:42,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:47:42,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:47:42,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:47:42,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:47:42,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:47:42,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:47:42,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:47:42,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:47:42,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:47:42,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:47:42,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:47:42,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:47:42,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:47:42,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:47:42,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:47:42,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:47:42,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:47:42,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:47:42,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:47:42,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:47:42,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:47:42,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:47:42,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:47:42,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:47:42,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:47:42,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:47:42,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:47:42,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:47:42,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:47:42,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:47:42,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:47:42,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:47:42,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:47:42,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:47:42,256 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:47:42,269 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:47:42,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:47:42,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:47:42,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:47:42,271 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:47:42,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:47:42,271 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:47:42,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:47:42,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:47:42,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:47:42,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:47:42,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:47:42,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:47:42,273 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:47:42,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:47:42,273 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:47:42,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:47:42,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:47:42,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:47:42,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:47:42,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:47:42,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:47:42,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:47:42,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:47:42,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:47:42,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:47:42,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:47:42,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:47:42,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:47:42,611 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:47:42,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:47:42,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:47:42,629 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:47:42,630 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:47:42,631 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product12.cil.c [2019-11-07 00:47:42,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c2c4c1d/544335e66987461c8e7cae694ad939d2/FLAG2a4682b32 [2019-11-07 00:47:43,372 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:47:43,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product12.cil.c [2019-11-07 00:47:43,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c2c4c1d/544335e66987461c8e7cae694ad939d2/FLAG2a4682b32 [2019-11-07 00:47:43,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c2c4c1d/544335e66987461c8e7cae694ad939d2 [2019-11-07 00:47:43,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:47:43,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:47:43,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:47:43,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:47:43,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:47:43,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:47:43" (1/1) ... [2019-11-07 00:47:43,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c1dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:43, skipping insertion in model container [2019-11-07 00:47:43,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:47:43" (1/1) ... [2019-11-07 00:47:43,572 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:47:43,640 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:47:44,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:47:44,469 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:47:44,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:47:44,744 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:47:44,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:44 WrapperNode [2019-11-07 00:47:44,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:47:44,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:47:44,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:47:44,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:47:44,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:44" (1/1) ... [2019-11-07 00:47:44,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:44" (1/1) ... [2019-11-07 00:47:44,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:44" (1/1) ... [2019-11-07 00:47:44,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:44" (1/1) ... [2019-11-07 00:47:44,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:44" (1/1) ... [2019-11-07 00:47:44,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:44" (1/1) ... [2019-11-07 00:47:44,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:44" (1/1) ... [2019-11-07 00:47:44,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:47:44,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:47:44,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:47:44,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:47:44,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:47:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:47:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:47:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:47:45,002 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:47:45,002 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:47:45,002 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:47:45,002 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:47:45,003 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:47:45,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:47:45,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:47:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:47:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:47:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:47:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:47:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:47:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:47:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:47:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:47:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:47:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:47:45,008 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:47:45,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:47:45,009 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:47:45,009 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:47:45,009 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:47:45,010 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:47:45,010 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:47:45,011 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:47:45,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:47:45,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:47:45,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:47:45,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:47:45,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:47:45,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:47:45,012 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:47:45,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:47:45,012 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:47:45,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:47:45,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:47:45,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:47:45,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:47:45,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:47:45,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:47:45,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:47:45,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:47:45,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:47:45,013 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:47:45,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:47:45,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:47:45,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:47:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:47:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:47:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:47:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:47:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:47:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:47:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:47:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:47:45,015 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:47:45,015 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:47:45,015 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:47:45,015 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:47:45,015 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:47:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:47:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:47:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:47:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:47:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:47:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:47:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:47:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:47:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:47:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:47:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:47:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:47:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:47:45,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:47:45,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:47:45,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:47:45,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:47:45,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:47:45,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:47:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:47:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:47:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:47:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:47:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:47:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:47:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:47:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:47:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:47:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:47:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:47:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:47:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:47:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:47:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:47:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:47:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:47:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:47:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:47:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:47:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:47:45,022 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:47:45,022 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:47:45,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-11-07 00:47:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:47:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:47:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:47:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:47:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:47:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:47:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:47:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:47:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:47:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:47:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:47:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:47:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:47:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:47:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:47:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:47:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:47:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:47:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:47:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:47:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:47:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:47:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:47:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:47:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:47:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:47:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:47:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:47:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:47:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:47:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:47:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:47:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:47:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:47:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:47:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:47:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:47:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:47:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:47:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:47:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:47:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:47:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:47:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:47:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:47:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:47:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:47:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:47:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:47:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:47:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:47:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:47:45,031 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:47:45,031 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:47:45,031 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:47:45,031 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:47:45,031 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:47:45,031 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:47:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:47:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:47:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:47:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:47:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:47:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:47:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:47:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:47:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:47:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:47:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:47:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:47:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:47:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:47:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:47:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:47:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:47:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:47:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:47:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-11-07 00:47:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:47:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:47:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:47:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:47:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:47:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:47:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:47:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:47:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:47:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:47:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:47:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:47:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:47:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:47:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:47:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:47:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:47:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:47:47,131 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:47:47,131 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:47:47,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:47:47 BoogieIcfgContainer [2019-11-07 00:47:47,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:47:47,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:47:47,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:47:47,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:47:47,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:47:43" (1/3) ... [2019-11-07 00:47:47,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e1ecc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:47:47, skipping insertion in model container [2019-11-07 00:47:47,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:44" (2/3) ... [2019-11-07 00:47:47,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e1ecc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:47:47, skipping insertion in model container [2019-11-07 00:47:47,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:47:47" (3/3) ... [2019-11-07 00:47:47,142 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product12.cil.c [2019-11-07 00:47:47,155 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:47:47,167 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:47:47,180 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:47:47,220 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:47:47,221 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:47:47,221 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:47:47,221 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:47:47,221 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:47:47,222 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:47:47,222 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:47:47,222 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:47:47,258 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states. [2019-11-07 00:47:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-07 00:47:47,297 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:47,302 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:47,304 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:47,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:47,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1292534618, now seen corresponding path program 1 times [2019-11-07 00:47:47,324 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:47,325 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852967838] [2019-11-07 00:47:47,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:47:48,011 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852967838] [2019-11-07 00:47:48,013 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:48,016 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:47:48,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994555189] [2019-11-07 00:47:48,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:47:48,027 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:48,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:47:48,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:47:48,045 INFO L87 Difference]: Start difference. First operand 424 states. Second operand 2 states. [2019-11-07 00:47:48,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:48,154 INFO L93 Difference]: Finished difference Result 557 states and 745 transitions. [2019-11-07 00:47:48,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:47:48,157 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-11-07 00:47:48,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:48,188 INFO L225 Difference]: With dead ends: 557 [2019-11-07 00:47:48,188 INFO L226 Difference]: Without dead ends: 379 [2019-11-07 00:47:48,193 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:47:48,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-11-07 00:47:48,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-11-07 00:47:48,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-11-07 00:47:48,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 510 transitions. [2019-11-07 00:47:48,271 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 510 transitions. Word has length 145 [2019-11-07 00:47:48,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:48,274 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 510 transitions. [2019-11-07 00:47:48,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:47:48,274 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 510 transitions. [2019-11-07 00:47:48,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-11-07 00:47:48,278 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:48,279 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:48,279 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:48,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:48,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1702693606, now seen corresponding path program 1 times [2019-11-07 00:47:48,280 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:48,280 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863608439] [2019-11-07 00:47:48,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:48,556 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:47:48,557 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863608439] [2019-11-07 00:47:48,557 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:48,557 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:47:48,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125635825] [2019-11-07 00:47:48,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:47:48,569 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:48,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:47:48,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:48,570 INFO L87 Difference]: Start difference. First operand 379 states and 510 transitions. Second operand 3 states. [2019-11-07 00:47:48,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:48,611 INFO L93 Difference]: Finished difference Result 540 states and 714 transitions. [2019-11-07 00:47:48,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:47:48,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-11-07 00:47:48,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:48,616 INFO L225 Difference]: With dead ends: 540 [2019-11-07 00:47:48,617 INFO L226 Difference]: Without dead ends: 382 [2019-11-07 00:47:48,619 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:48,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-11-07 00:47:48,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2019-11-07 00:47:48,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-11-07 00:47:48,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 512 transitions. [2019-11-07 00:47:48,655 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 512 transitions. Word has length 146 [2019-11-07 00:47:48,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:48,656 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 512 transitions. [2019-11-07 00:47:48,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:47:48,656 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 512 transitions. [2019-11-07 00:47:48,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-11-07 00:47:48,659 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:48,660 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:48,660 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:48,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:48,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1477290126, now seen corresponding path program 1 times [2019-11-07 00:47:48,661 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:48,661 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565450970] [2019-11-07 00:47:48,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:47:48,791 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565450970] [2019-11-07 00:47:48,791 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:48,791 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:47:48,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19620995] [2019-11-07 00:47:48,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:47:48,793 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:48,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:47:48,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:48,793 INFO L87 Difference]: Start difference. First operand 381 states and 512 transitions. Second operand 3 states. [2019-11-07 00:47:48,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:48,830 INFO L93 Difference]: Finished difference Result 736 states and 1019 transitions. [2019-11-07 00:47:48,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:47:48,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-11-07 00:47:48,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:48,839 INFO L225 Difference]: With dead ends: 736 [2019-11-07 00:47:48,839 INFO L226 Difference]: Without dead ends: 420 [2019-11-07 00:47:48,842 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:48,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2019-11-07 00:47:48,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 419. [2019-11-07 00:47:48,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2019-11-07 00:47:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 578 transitions. [2019-11-07 00:47:48,888 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 578 transitions. Word has length 152 [2019-11-07 00:47:48,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:48,889 INFO L462 AbstractCegarLoop]: Abstraction has 419 states and 578 transitions. [2019-11-07 00:47:48,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:47:48,889 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 578 transitions. [2019-11-07 00:47:48,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-11-07 00:47:48,894 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:48,894 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:48,894 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:48,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:48,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1886930768, now seen corresponding path program 1 times [2019-11-07 00:47:48,895 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:48,896 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792529652] [2019-11-07 00:47:48,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:47:49,834 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792529652] [2019-11-07 00:47:49,835 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:49,835 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2019-11-07 00:47:49,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371914915] [2019-11-07 00:47:49,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-07 00:47:49,836 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:49,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-07 00:47:49,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=801, Unknown=0, NotChecked=0, Total=870 [2019-11-07 00:47:49,838 INFO L87 Difference]: Start difference. First operand 419 states and 578 transitions. Second operand 30 states. [2019-11-07 00:47:53,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:53,641 INFO L93 Difference]: Finished difference Result 1195 states and 1682 transitions. [2019-11-07 00:47:53,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-07 00:47:53,642 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 153 [2019-11-07 00:47:53,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:53,650 INFO L225 Difference]: With dead ends: 1195 [2019-11-07 00:47:53,650 INFO L226 Difference]: Without dead ends: 812 [2019-11-07 00:47:53,653 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=254, Invalid=3052, Unknown=0, NotChecked=0, Total=3306 [2019-11-07 00:47:53,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2019-11-07 00:47:53,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 629. [2019-11-07 00:47:53,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2019-11-07 00:47:53,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 914 transitions. [2019-11-07 00:47:53,698 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 914 transitions. Word has length 153 [2019-11-07 00:47:53,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:53,699 INFO L462 AbstractCegarLoop]: Abstraction has 629 states and 914 transitions. [2019-11-07 00:47:53,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-07 00:47:53,699 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 914 transitions. [2019-11-07 00:47:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-07 00:47:53,703 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:53,704 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:53,704 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:53,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:53,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1456150513, now seen corresponding path program 1 times [2019-11-07 00:47:53,705 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:53,705 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050323238] [2019-11-07 00:47:53,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:54,397 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 00:47:54,397 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050323238] [2019-11-07 00:47:54,398 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993733989] [2019-11-07 00:47:54,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:47:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:54,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 2223 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 00:47:54,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:47:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 00:47:55,132 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:47:55,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:47:55,533 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:47:55,595 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:47:55,595 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:47:55,596 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [30, 7] total 38 [2019-11-07 00:47:55,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757592759] [2019-11-07 00:47:55,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:47:55,597 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:55,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:47:55,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1299, Unknown=0, NotChecked=0, Total=1406 [2019-11-07 00:47:55,598 INFO L87 Difference]: Start difference. First operand 629 states and 914 transitions. Second operand 7 states. [2019-11-07 00:47:56,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:56,428 INFO L93 Difference]: Finished difference Result 1211 states and 1781 transitions. [2019-11-07 00:47:56,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:47:56,429 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2019-11-07 00:47:56,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:56,433 INFO L225 Difference]: With dead ends: 1211 [2019-11-07 00:47:56,433 INFO L226 Difference]: Without dead ends: 633 [2019-11-07 00:47:56,436 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 300 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=1435, Unknown=0, NotChecked=0, Total=1560 [2019-11-07 00:47:56,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-11-07 00:47:56,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2019-11-07 00:47:56,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2019-11-07 00:47:56,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 919 transitions. [2019-11-07 00:47:56,491 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 919 transitions. Word has length 154 [2019-11-07 00:47:56,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:56,491 INFO L462 AbstractCegarLoop]: Abstraction has 633 states and 919 transitions. [2019-11-07 00:47:56,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:47:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 919 transitions. [2019-11-07 00:47:56,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-11-07 00:47:56,497 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:56,497 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:56,703 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:47:56,704 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:56,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:56,704 INFO L82 PathProgramCache]: Analyzing trace with hash 864289227, now seen corresponding path program 1 times [2019-11-07 00:47:56,705 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:56,705 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945115185] [2019-11-07 00:47:56,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:47:57,219 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945115185] [2019-11-07 00:47:57,219 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:57,220 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-11-07 00:47:57,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37081577] [2019-11-07 00:47:57,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-07 00:47:57,221 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:57,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-07 00:47:57,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:47:57,221 INFO L87 Difference]: Start difference. First operand 633 states and 919 transitions. Second operand 25 states. [2019-11-07 00:48:03,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:03,093 INFO L93 Difference]: Finished difference Result 1864 states and 2600 transitions. [2019-11-07 00:48:03,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-11-07 00:48:03,093 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 155 [2019-11-07 00:48:03,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:03,103 INFO L225 Difference]: With dead ends: 1864 [2019-11-07 00:48:03,103 INFO L226 Difference]: Without dead ends: 1720 [2019-11-07 00:48:03,106 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1465 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=681, Invalid=5325, Unknown=0, NotChecked=0, Total=6006 [2019-11-07 00:48:03,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2019-11-07 00:48:03,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1358. [2019-11-07 00:48:03,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1358 states. [2019-11-07 00:48:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1964 transitions. [2019-11-07 00:48:03,209 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1964 transitions. Word has length 155 [2019-11-07 00:48:03,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:03,212 INFO L462 AbstractCegarLoop]: Abstraction has 1358 states and 1964 transitions. [2019-11-07 00:48:03,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-07 00:48:03,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1964 transitions. [2019-11-07 00:48:03,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-07 00:48:03,219 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:03,219 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:48:03,219 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:03,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:03,220 INFO L82 PathProgramCache]: Analyzing trace with hash 339417093, now seen corresponding path program 1 times [2019-11-07 00:48:03,220 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:03,220 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476155266] [2019-11-07 00:48:03,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:03,427 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 00:48:03,428 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476155266] [2019-11-07 00:48:03,428 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:03,429 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 00:48:03,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078522041] [2019-11-07 00:48:03,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:48:03,430 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:03,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:48:03,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:48:03,431 INFO L87 Difference]: Start difference. First operand 1358 states and 1964 transitions. Second operand 9 states. [2019-11-07 00:48:03,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:03,784 INFO L93 Difference]: Finished difference Result 1819 states and 2569 transitions. [2019-11-07 00:48:03,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:48:03,785 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2019-11-07 00:48:03,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:03,794 INFO L225 Difference]: With dead ends: 1819 [2019-11-07 00:48:03,794 INFO L226 Difference]: Without dead ends: 1393 [2019-11-07 00:48:03,797 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:48:03,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2019-11-07 00:48:03,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1393. [2019-11-07 00:48:03,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1393 states. [2019-11-07 00:48:03,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 2018 transitions. [2019-11-07 00:48:03,887 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 2018 transitions. Word has length 156 [2019-11-07 00:48:03,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:03,889 INFO L462 AbstractCegarLoop]: Abstraction has 1393 states and 2018 transitions. [2019-11-07 00:48:03,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:48:03,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 2018 transitions. [2019-11-07 00:48:03,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-07 00:48:03,896 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:03,897 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:48:03,897 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:03,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:03,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1109181897, now seen corresponding path program 1 times [2019-11-07 00:48:03,897 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:03,898 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731138059] [2019-11-07 00:48:03,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:04,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 00:48:04,071 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731138059] [2019-11-07 00:48:04,071 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:04,071 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:48:04,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424109015] [2019-11-07 00:48:04,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:48:04,072 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:04,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:48:04,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:48:04,073 INFO L87 Difference]: Start difference. First operand 1393 states and 2018 transitions. Second operand 5 states. [2019-11-07 00:48:04,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:04,959 INFO L93 Difference]: Finished difference Result 3181 states and 4504 transitions. [2019-11-07 00:48:04,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:48:04,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2019-11-07 00:48:04,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:04,988 INFO L225 Difference]: With dead ends: 3181 [2019-11-07 00:48:04,988 INFO L226 Difference]: Without dead ends: 2740 [2019-11-07 00:48:04,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:48:04,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2019-11-07 00:48:05,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2524. [2019-11-07 00:48:05,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2524 states. [2019-11-07 00:48:05,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2524 states to 2524 states and 3568 transitions. [2019-11-07 00:48:05,252 INFO L78 Accepts]: Start accepts. Automaton has 2524 states and 3568 transitions. Word has length 156 [2019-11-07 00:48:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:05,252 INFO L462 AbstractCegarLoop]: Abstraction has 2524 states and 3568 transitions. [2019-11-07 00:48:05,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:48:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2524 states and 3568 transitions. [2019-11-07 00:48:05,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-07 00:48:05,260 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:05,261 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:48:05,261 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:05,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:05,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1175681558, now seen corresponding path program 1 times [2019-11-07 00:48:05,262 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:05,263 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866668149] [2019-11-07 00:48:05,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:05,453 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:48:05,454 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866668149] [2019-11-07 00:48:05,455 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:05,455 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 00:48:05,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752146305] [2019-11-07 00:48:05,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:48:05,457 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:05,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:48:05,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:48:05,457 INFO L87 Difference]: Start difference. First operand 2524 states and 3568 transitions. Second operand 9 states. [2019-11-07 00:48:05,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:05,810 INFO L93 Difference]: Finished difference Result 2839 states and 3975 transitions. [2019-11-07 00:48:05,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 00:48:05,811 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2019-11-07 00:48:05,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:05,818 INFO L225 Difference]: With dead ends: 2839 [2019-11-07 00:48:05,818 INFO L226 Difference]: Without dead ends: 966 [2019-11-07 00:48:05,825 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-11-07 00:48:05,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2019-11-07 00:48:05,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 964. [2019-11-07 00:48:05,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2019-11-07 00:48:05,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1348 transitions. [2019-11-07 00:48:05,914 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1348 transitions. Word has length 156 [2019-11-07 00:48:05,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:05,915 INFO L462 AbstractCegarLoop]: Abstraction has 964 states and 1348 transitions. [2019-11-07 00:48:05,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:48:05,915 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1348 transitions. [2019-11-07 00:48:05,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-07 00:48:05,921 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:05,921 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:48:05,921 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:05,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:05,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1475896574, now seen corresponding path program 2 times [2019-11-07 00:48:05,922 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:05,923 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198924849] [2019-11-07 00:48:05,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-07 00:48:06,418 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198924849] [2019-11-07 00:48:06,418 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:06,418 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-11-07 00:48:06,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117448134] [2019-11-07 00:48:06,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-07 00:48:06,426 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:06,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-07 00:48:06,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2019-11-07 00:48:06,428 INFO L87 Difference]: Start difference. First operand 964 states and 1348 transitions. Second operand 23 states. [2019-11-07 00:48:12,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:12,800 INFO L93 Difference]: Finished difference Result 3840 states and 5359 transitions. [2019-11-07 00:48:12,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2019-11-07 00:48:12,801 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 156 [2019-11-07 00:48:12,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:12,820 INFO L225 Difference]: With dead ends: 3840 [2019-11-07 00:48:12,820 INFO L226 Difference]: Without dead ends: 3447 [2019-11-07 00:48:12,825 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1613 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=726, Invalid=5436, Unknown=0, NotChecked=0, Total=6162 [2019-11-07 00:48:12,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2019-11-07 00:48:13,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 2519. [2019-11-07 00:48:13,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2519 states. [2019-11-07 00:48:13,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3560 transitions. [2019-11-07 00:48:13,017 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3560 transitions. Word has length 156 [2019-11-07 00:48:13,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:13,017 INFO L462 AbstractCegarLoop]: Abstraction has 2519 states and 3560 transitions. [2019-11-07 00:48:13,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-07 00:48:13,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3560 transitions. [2019-11-07 00:48:13,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-11-07 00:48:13,026 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:13,027 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:48:13,027 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:13,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:13,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1644365759, now seen corresponding path program 2 times [2019-11-07 00:48:13,028 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:13,028 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253235242] [2019-11-07 00:48:13,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:13,216 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-07 00:48:13,216 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253235242] [2019-11-07 00:48:13,217 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:13,217 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 00:48:13,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053787229] [2019-11-07 00:48:13,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:48:13,219 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:13,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:48:13,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:48:13,221 INFO L87 Difference]: Start difference. First operand 2519 states and 3560 transitions. Second operand 7 states. [2019-11-07 00:48:13,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:13,563 INFO L93 Difference]: Finished difference Result 2834 states and 3967 transitions. [2019-11-07 00:48:13,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:48:13,564 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2019-11-07 00:48:13,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:13,571 INFO L225 Difference]: With dead ends: 2834 [2019-11-07 00:48:13,571 INFO L226 Difference]: Without dead ends: 966 [2019-11-07 00:48:13,583 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-11-07 00:48:13,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2019-11-07 00:48:13,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 964. [2019-11-07 00:48:13,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 964 states. [2019-11-07 00:48:13,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1347 transitions. [2019-11-07 00:48:13,638 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1347 transitions. Word has length 157 [2019-11-07 00:48:13,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:13,638 INFO L462 AbstractCegarLoop]: Abstraction has 964 states and 1347 transitions. [2019-11-07 00:48:13,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:48:13,638 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1347 transitions. [2019-11-07 00:48:13,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-11-07 00:48:13,642 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:13,642 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:48:13,642 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:13,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:13,643 INFO L82 PathProgramCache]: Analyzing trace with hash -694323250, now seen corresponding path program 3 times [2019-11-07 00:48:13,643 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:13,643 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640798175] [2019-11-07 00:48:13,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:14,073 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-07 00:48:14,073 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640798175] [2019-11-07 00:48:14,073 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:14,073 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-11-07 00:48:14,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153538985] [2019-11-07 00:48:14,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-07 00:48:14,074 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:14,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-07 00:48:14,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:48:14,075 INFO L87 Difference]: Start difference. First operand 964 states and 1347 transitions. Second operand 25 states.