/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_spec6_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:54:01,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:54:01,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:54:01,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:54:01,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:54:01,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:54:01,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:54:01,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:54:01,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:54:01,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:54:01,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:54:01,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:54:01,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:54:01,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:54:01,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:54:01,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:54:01,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:54:01,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:54:01,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:54:01,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:54:01,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:54:01,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:54:01,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:54:01,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:54:01,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:54:01,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:54:01,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:54:01,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:54:01,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:54:01,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:54:01,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:54:01,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:54:01,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:54:01,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:54:01,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:54:01,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:54:01,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:54:01,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:54:01,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:54:01,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:54:01,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:54:01,345 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 00:54:01,365 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:54:01,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:54:01,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:54:01,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:54:01,369 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:54:01,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:54:01,369 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:54:01,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:54:01,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:54:01,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:54:01,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:54:01,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:54:01,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:54:01,372 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:54:01,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:54:01,372 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:54:01,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:54:01,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:54:01,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:54:01,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:54:01,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:54:01,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:54:01,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:54:01,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:54:01,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:54:01,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:54:01,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:54:01,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:54:01,375 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 00:54:01,651 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:54:01,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:54:01,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:54:01,669 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:54:01,670 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:54:01,670 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product35.cil.c [2019-11-07 00:54:01,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/844635784/7d9f2298002841859431724a9ab10f36/FLAG3ea1c77c2 [2019-11-07 00:54:02,386 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:54:02,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product35.cil.c [2019-11-07 00:54:02,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/844635784/7d9f2298002841859431724a9ab10f36/FLAG3ea1c77c2 [2019-11-07 00:54:02,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/844635784/7d9f2298002841859431724a9ab10f36 [2019-11-07 00:54:02,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:54:02,628 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:54:02,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:02,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:54:02,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:54:02,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:02" (1/1) ... [2019-11-07 00:54:02,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1acb3b61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02, skipping insertion in model container [2019-11-07 00:54:02,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:02" (1/1) ... [2019-11-07 00:54:02,648 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:54:02,733 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:54:03,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:03,565 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:54:03,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:03,871 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:54:03,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03 WrapperNode [2019-11-07 00:54:03,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:03,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:54:03,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:54:03,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:54:03,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03" (1/1) ... [2019-11-07 00:54:03,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03" (1/1) ... [2019-11-07 00:54:03,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03" (1/1) ... [2019-11-07 00:54:03,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03" (1/1) ... [2019-11-07 00:54:03,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03" (1/1) ... [2019-11-07 00:54:04,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03" (1/1) ... [2019-11-07 00:54:04,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03" (1/1) ... [2019-11-07 00:54:04,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:54:04,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:54:04,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:54:04,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:54:04,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:54:04,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:54:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:54:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:54:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:54:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:54:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 00:54:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:54:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:54:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:54:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:54:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:54:04,136 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:54:04,136 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:54:04,136 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:54:04,136 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:54:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:54:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:54:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:54:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:54:04,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:54:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:54:04,138 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:54:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:54:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:54:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:54:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:54:04,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:54:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:54:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:54:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:04,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:54:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:54:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:54:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:54:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:54:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:54:04,141 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:54:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:54:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:54:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:54:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:54:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:54:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:54:04,142 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:54:04,143 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:54:04,143 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:54:04,143 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:54:04,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:54:04,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:54:04,143 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:54:04,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:54:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 00:54:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 00:54:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:54:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:54:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:54:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:54:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:54:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:54:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:54:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:54:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:54:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:54:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:54:04,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:54:04,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:54:04,146 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:54:04,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:54:04,146 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:54:04,147 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:54:04,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:54:04,147 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:54:04,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:54:04,147 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:54:04,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:54:04,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:54:04,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:54:04,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:54:04,148 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:54:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:54:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:54:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:54:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:54:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:54:04,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:54:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:54:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:54:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:54:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:04,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:54:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:54:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:54:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:54:04,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:54:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:54:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:54:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:54:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:54:04,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:54:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:54:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:54:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:54:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:54:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:54:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:54:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:54:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:54:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:54:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:54:04,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:54:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:54:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:54:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:54:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:54:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:54:04,156 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:54:04,156 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:54:04,156 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:54:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:54:04,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:54:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:54:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:54:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:54:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:54:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:54:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:54:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:54:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:54:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:54:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:54:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:54:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:54:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:54:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:54:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:54:04,159 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:54:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:54:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:54:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:54:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:54:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:54:04,160 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:54:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:54:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:54:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:54:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:54:04,161 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:54:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:54:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:54:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:54:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:54:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:54:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:54:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:54:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:54:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:54:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:54:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:54:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:54:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:54:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:54:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:54:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:54:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:54:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:54:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:54:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:54:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:54:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 00:54:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:54:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:54:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:54:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:54:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:54:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:54:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:54:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:54:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:54:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:54:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:54:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:54:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:54:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:54:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:54:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:54:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:54:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:54:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:54:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:54:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:54:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:54:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:54:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:54:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:54:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:54:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:54:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:54:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:54:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:54:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:54:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:54:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:54:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:54:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:54:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:54:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:54:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:54:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:54:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:54:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:54:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:54:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:54:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:54:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:54:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 00:54:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 00:54:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:54:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:54:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:54:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:54:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:54:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:54:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:54:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:54:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:54:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:54:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:54:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:54:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:54:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:54:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:54:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:54:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:54:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:54:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:54:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:54:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:54:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:54:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:54:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:54:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:54:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:54:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:54:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:54:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:54:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:54:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:54:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:54:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:54:06,717 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:54:06,717 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:54:06,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:06 BoogieIcfgContainer [2019-11-07 00:54:06,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:54:06,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:54:06,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:54:06,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:54:06,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:02" (1/3) ... [2019-11-07 00:54:06,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b80f791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:06, skipping insertion in model container [2019-11-07 00:54:06,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03" (2/3) ... [2019-11-07 00:54:06,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b80f791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:06, skipping insertion in model container [2019-11-07 00:54:06,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:06" (3/3) ... [2019-11-07 00:54:06,731 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product35.cil.c [2019-11-07 00:54:06,751 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:54:06,762 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:54:06,776 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:54:06,819 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:54:06,819 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:54:06,819 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:54:06,819 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:54:06,820 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:54:06,820 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:54:06,820 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:54:06,820 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:54:06,873 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states. [2019-11-07 00:54:06,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-11-07 00:54:06,933 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:06,934 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:06,936 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:06,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:06,943 INFO L82 PathProgramCache]: Analyzing trace with hash -711590193, now seen corresponding path program 1 times [2019-11-07 00:54:06,954 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:06,954 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025152339] [2019-11-07 00:54:06,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:07,669 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025152339] [2019-11-07 00:54:07,670 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:07,670 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:54:07,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807900303] [2019-11-07 00:54:07,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:54:07,681 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:07,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:54:07,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:54:07,698 INFO L87 Difference]: Start difference. First operand 691 states. Second operand 2 states. [2019-11-07 00:54:07,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:07,828 INFO L93 Difference]: Finished difference Result 1057 states and 1422 transitions. [2019-11-07 00:54:07,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:54:07,830 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-11-07 00:54:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:07,856 INFO L225 Difference]: With dead ends: 1057 [2019-11-07 00:54:07,856 INFO L226 Difference]: Without dead ends: 662 [2019-11-07 00:54:07,865 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 00:54:07,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2019-11-07 00:54:07,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2019-11-07 00:54:07,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2019-11-07 00:54:07,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 896 transitions. [2019-11-07 00:54:07,988 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 896 transitions. Word has length 198 [2019-11-07 00:54:07,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:07,994 INFO L462 AbstractCegarLoop]: Abstraction has 662 states and 896 transitions. [2019-11-07 00:54:07,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:54:07,996 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 896 transitions. [2019-11-07 00:54:08,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-11-07 00:54:08,012 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:08,013 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:08,013 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:08,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:08,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1780281315, now seen corresponding path program 1 times [2019-11-07 00:54:08,014 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:08,014 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137475967] [2019-11-07 00:54:08,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:08,372 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:08,372 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137475967] [2019-11-07 00:54:08,373 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:08,373 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:08,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388009879] [2019-11-07 00:54:08,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:08,389 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:08,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:08,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:08,390 INFO L87 Difference]: Start difference. First operand 662 states and 896 transitions. Second operand 3 states. [2019-11-07 00:54:08,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:08,469 INFO L93 Difference]: Finished difference Result 1040 states and 1386 transitions. [2019-11-07 00:54:08,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:08,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-11-07 00:54:08,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:08,477 INFO L225 Difference]: With dead ends: 1040 [2019-11-07 00:54:08,477 INFO L226 Difference]: Without dead ends: 665 [2019-11-07 00:54:08,487 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 00:54:08,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2019-11-07 00:54:08,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 664. [2019-11-07 00:54:08,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2019-11-07 00:54:08,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 898 transitions. [2019-11-07 00:54:08,548 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 898 transitions. Word has length 199 [2019-11-07 00:54:08,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:08,550 INFO L462 AbstractCegarLoop]: Abstraction has 664 states and 898 transitions. [2019-11-07 00:54:08,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:08,550 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 898 transitions. [2019-11-07 00:54:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-11-07 00:54:08,554 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:08,555 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:08,555 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:08,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:08,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1355702484, now seen corresponding path program 1 times [2019-11-07 00:54:08,556 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:08,556 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544892716] [2019-11-07 00:54:08,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:08,795 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:08,795 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544892716] [2019-11-07 00:54:08,795 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:08,795 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:08,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794424257] [2019-11-07 00:54:08,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:08,799 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:08,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:08,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:08,800 INFO L87 Difference]: Start difference. First operand 664 states and 898 transitions. Second operand 3 states. [2019-11-07 00:54:08,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:08,868 INFO L93 Difference]: Finished difference Result 1308 states and 1800 transitions. [2019-11-07 00:54:08,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:08,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2019-11-07 00:54:08,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:08,882 INFO L225 Difference]: With dead ends: 1308 [2019-11-07 00:54:08,882 INFO L226 Difference]: Without dead ends: 709 [2019-11-07 00:54:08,886 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 00:54:08,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-11-07 00:54:08,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 708. [2019-11-07 00:54:08,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-11-07 00:54:08,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 973 transitions. [2019-11-07 00:54:08,945 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 973 transitions. Word has length 211 [2019-11-07 00:54:08,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:08,951 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 973 transitions. [2019-11-07 00:54:08,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:08,953 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 973 transitions. [2019-11-07 00:54:08,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-11-07 00:54:08,962 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:08,963 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:08,963 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:08,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:08,965 INFO L82 PathProgramCache]: Analyzing trace with hash -211848516, now seen corresponding path program 1 times [2019-11-07 00:54:08,966 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:08,966 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210009360] [2019-11-07 00:54:08,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:09,221 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:09,221 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210009360] [2019-11-07 00:54:09,221 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:09,222 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:09,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553005141] [2019-11-07 00:54:09,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:09,223 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:09,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:09,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:09,223 INFO L87 Difference]: Start difference. First operand 708 states and 973 transitions. Second operand 3 states. [2019-11-07 00:54:09,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:09,267 INFO L93 Difference]: Finished difference Result 1437 states and 2020 transitions. [2019-11-07 00:54:09,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:09,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2019-11-07 00:54:09,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:09,275 INFO L225 Difference]: With dead ends: 1437 [2019-11-07 00:54:09,275 INFO L226 Difference]: Without dead ends: 794 [2019-11-07 00:54:09,278 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 00:54:09,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2019-11-07 00:54:09,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 793. [2019-11-07 00:54:09,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2019-11-07 00:54:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1117 transitions. [2019-11-07 00:54:09,313 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1117 transitions. Word has length 212 [2019-11-07 00:54:09,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:09,314 INFO L462 AbstractCegarLoop]: Abstraction has 793 states and 1117 transitions. [2019-11-07 00:54:09,314 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1117 transitions. [2019-11-07 00:54:09,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-11-07 00:54:09,320 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:09,320 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:09,321 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:09,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:09,321 INFO L82 PathProgramCache]: Analyzing trace with hash 945796238, now seen corresponding path program 1 times [2019-11-07 00:54:09,321 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:09,322 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608832400] [2019-11-07 00:54:09,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:09,737 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608832400] [2019-11-07 00:54:09,737 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:09,737 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:54:09,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323898051] [2019-11-07 00:54:09,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:54:09,739 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:09,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:54:09,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:54:09,740 INFO L87 Difference]: Start difference. First operand 793 states and 1117 transitions. Second operand 11 states. [2019-11-07 00:54:17,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:17,748 INFO L93 Difference]: Finished difference Result 3998 states and 5634 transitions. [2019-11-07 00:54:17,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-07 00:54:17,749 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 215 [2019-11-07 00:54:17,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:17,779 INFO L225 Difference]: With dead ends: 3998 [2019-11-07 00:54:17,780 INFO L226 Difference]: Without dead ends: 3636 [2019-11-07 00:54:17,785 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-11-07 00:54:17,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3636 states. [2019-11-07 00:54:17,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3636 to 3615. [2019-11-07 00:54:17,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3615 states. [2019-11-07 00:54:17,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3615 states to 3615 states and 4990 transitions. [2019-11-07 00:54:17,975 INFO L78 Accepts]: Start accepts. Automaton has 3615 states and 4990 transitions. Word has length 215 [2019-11-07 00:54:17,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:17,976 INFO L462 AbstractCegarLoop]: Abstraction has 3615 states and 4990 transitions. [2019-11-07 00:54:17,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:54:17,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3615 states and 4990 transitions. [2019-11-07 00:54:17,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-11-07 00:54:17,982 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:17,982 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:17,982 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:17,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:17,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1962065818, now seen corresponding path program 1 times [2019-11-07 00:54:17,983 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:17,983 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245879442] [2019-11-07 00:54:17,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:18,445 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245879442] [2019-11-07 00:54:18,445 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:18,446 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-11-07 00:54:18,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589518000] [2019-11-07 00:54:18,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-07 00:54:18,447 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:18,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-07 00:54:18,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-11-07 00:54:18,448 INFO L87 Difference]: Start difference. First operand 3615 states and 4990 transitions. Second operand 20 states. [2019-11-07 00:54:19,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:19,274 INFO L93 Difference]: Finished difference Result 6763 states and 9435 transitions. [2019-11-07 00:54:19,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-07 00:54:19,274 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 216 [2019-11-07 00:54:19,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:19,296 INFO L225 Difference]: With dead ends: 6763 [2019-11-07 00:54:19,297 INFO L226 Difference]: Without dead ends: 3561 [2019-11-07 00:54:19,309 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-11-07 00:54:19,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3561 states. [2019-11-07 00:54:19,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3561 to 3559. [2019-11-07 00:54:19,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3559 states. [2019-11-07 00:54:19,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3559 states to 3559 states and 4906 transitions. [2019-11-07 00:54:19,479 INFO L78 Accepts]: Start accepts. Automaton has 3559 states and 4906 transitions. Word has length 216 [2019-11-07 00:54:19,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:19,481 INFO L462 AbstractCegarLoop]: Abstraction has 3559 states and 4906 transitions. [2019-11-07 00:54:19,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-07 00:54:19,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3559 states and 4906 transitions. [2019-11-07 00:54:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-11-07 00:54:19,487 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:19,488 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:19,488 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:19,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:19,488 INFO L82 PathProgramCache]: Analyzing trace with hash 652440013, now seen corresponding path program 1 times [2019-11-07 00:54:19,489 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:19,489 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797920559] [2019-11-07 00:54:19,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:19,723 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797920559] [2019-11-07 00:54:19,724 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:19,724 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:54:19,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048039390] [2019-11-07 00:54:19,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:54:19,729 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:19,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:54:19,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:54:19,729 INFO L87 Difference]: Start difference. First operand 3559 states and 4906 transitions. Second operand 6 states. [2019-11-07 00:54:20,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:20,763 INFO L93 Difference]: Finished difference Result 10284 states and 14335 transitions. [2019-11-07 00:54:20,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:54:20,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2019-11-07 00:54:20,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:20,811 INFO L225 Difference]: With dead ends: 10284 [2019-11-07 00:54:20,811 INFO L226 Difference]: Without dead ends: 7205 [2019-11-07 00:54:20,825 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:54:20,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7205 states. [2019-11-07 00:54:21,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7205 to 7134. [2019-11-07 00:54:21,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7134 states. [2019-11-07 00:54:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 9944 transitions. [2019-11-07 00:54:21,199 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 9944 transitions. Word has length 225 [2019-11-07 00:54:21,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:21,199 INFO L462 AbstractCegarLoop]: Abstraction has 7134 states and 9944 transitions. [2019-11-07 00:54:21,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:54:21,200 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 9944 transitions. [2019-11-07 00:54:21,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-11-07 00:54:21,212 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:21,213 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:21,213 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:21,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:21,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1875015399, now seen corresponding path program 1 times [2019-11-07 00:54:21,214 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:21,214 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039210683] [2019-11-07 00:54:21,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:21,441 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039210683] [2019-11-07 00:54:21,442 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:21,442 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:54:21,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984657228] [2019-11-07 00:54:21,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:54:21,443 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:21,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:54:21,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:54:21,444 INFO L87 Difference]: Start difference. First operand 7134 states and 9944 transitions. Second operand 5 states. [2019-11-07 00:54:23,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:23,571 INFO L93 Difference]: Finished difference Result 26811 states and 38225 transitions. [2019-11-07 00:54:23,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:54:23,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2019-11-07 00:54:23,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:23,723 INFO L225 Difference]: With dead ends: 26811 [2019-11-07 00:54:23,723 INFO L226 Difference]: Without dead ends: 20570 [2019-11-07 00:54:23,762 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 00:54:23,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20570 states. [2019-11-07 00:54:24,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20570 to 20474. [2019-11-07 00:54:24,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20474 states. [2019-11-07 00:54:24,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20474 states to 20474 states and 28979 transitions. [2019-11-07 00:54:24,698 INFO L78 Accepts]: Start accepts. Automaton has 20474 states and 28979 transitions. Word has length 226 [2019-11-07 00:54:24,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:24,698 INFO L462 AbstractCegarLoop]: Abstraction has 20474 states and 28979 transitions. [2019-11-07 00:54:24,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:54:24,699 INFO L276 IsEmpty]: Start isEmpty. Operand 20474 states and 28979 transitions. [2019-11-07 00:54:24,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-11-07 00:54:24,712 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:24,713 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:24,713 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:24,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:24,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1288239280, now seen corresponding path program 1 times [2019-11-07 00:54:24,714 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:24,715 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023453] [2019-11-07 00:54:24,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:24,995 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:24,995 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023453] [2019-11-07 00:54:24,995 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:24,996 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-07 00:54:24,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781697235] [2019-11-07 00:54:24,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-07 00:54:24,997 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:24,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-07 00:54:24,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:54:24,997 INFO L87 Difference]: Start difference. First operand 20474 states and 28979 transitions. Second operand 13 states. [2019-11-07 00:54:26,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:26,729 INFO L93 Difference]: Finished difference Result 39131 states and 55106 transitions. [2019-11-07 00:54:26,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:54:26,730 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 226 [2019-11-07 00:54:26,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:26,823 INFO L225 Difference]: With dead ends: 39131 [2019-11-07 00:54:26,823 INFO L226 Difference]: Without dead ends: 20398 [2019-11-07 00:54:26,894 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-11-07 00:54:26,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20398 states. [2019-11-07 00:54:27,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20398 to 20346. [2019-11-07 00:54:27,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20346 states. [2019-11-07 00:54:27,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20346 states to 20346 states and 28588 transitions. [2019-11-07 00:54:27,934 INFO L78 Accepts]: Start accepts. Automaton has 20346 states and 28588 transitions. Word has length 226 [2019-11-07 00:54:27,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:27,936 INFO L462 AbstractCegarLoop]: Abstraction has 20346 states and 28588 transitions. [2019-11-07 00:54:27,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-07 00:54:27,937 INFO L276 IsEmpty]: Start isEmpty. Operand 20346 states and 28588 transitions. [2019-11-07 00:54:27,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-11-07 00:54:27,957 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:27,957 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:27,958 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:27,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:27,959 INFO L82 PathProgramCache]: Analyzing trace with hash -410017553, now seen corresponding path program 1 times [2019-11-07 00:54:27,959 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:27,960 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841784763] [2019-11-07 00:54:27,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:28,251 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:28,252 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841784763] [2019-11-07 00:54:28,253 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:28,253 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:28,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962316415] [2019-11-07 00:54:28,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:28,255 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:28,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:28,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:28,256 INFO L87 Difference]: Start difference. First operand 20346 states and 28588 transitions. Second operand 3 states. [2019-11-07 00:54:28,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:28,895 INFO L93 Difference]: Finished difference Result 41287 states and 58317 transitions. [2019-11-07 00:54:28,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:28,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-11-07 00:54:28,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:28,986 INFO L225 Difference]: With dead ends: 41287 [2019-11-07 00:54:28,986 INFO L226 Difference]: Without dead ends: 21006 [2019-11-07 00:54:29,038 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 00:54:29,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21006 states. [2019-11-07 00:54:29,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21006 to 21002. [2019-11-07 00:54:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21002 states. [2019-11-07 00:54:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21002 states to 21002 states and 29782 transitions. [2019-11-07 00:54:29,931 INFO L78 Accepts]: Start accepts. Automaton has 21002 states and 29782 transitions. Word has length 247 [2019-11-07 00:54:29,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:29,932 INFO L462 AbstractCegarLoop]: Abstraction has 21002 states and 29782 transitions. [2019-11-07 00:54:29,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:29,932 INFO L276 IsEmpty]: Start isEmpty. Operand 21002 states and 29782 transitions. [2019-11-07 00:54:29,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-11-07 00:54:29,952 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:29,952 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:29,953 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:29,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:29,953 INFO L82 PathProgramCache]: Analyzing trace with hash 462111639, now seen corresponding path program 1 times [2019-11-07 00:54:29,953 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:29,953 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125430773] [2019-11-07 00:54:29,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:30,170 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:30,171 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125430773] [2019-11-07 00:54:30,171 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:30,171 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:54:30,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114118456] [2019-11-07 00:54:30,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:54:30,172 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:30,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:54:30,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:54:30,173 INFO L87 Difference]: Start difference. First operand 21002 states and 29782 transitions. Second operand 8 states.