java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:14:54,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:14:54,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:14:54,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:14:54,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:14:54,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:14:54,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:14:54,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:14:54,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:14:54,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:14:54,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:14:54,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:14:54,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:14:54,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:14:54,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:14:54,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:14:54,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:14:54,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:14:54,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:14:54,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:14:54,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:14:54,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:14:54,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:14:54,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:14:54,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:14:54,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:14:54,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:14:54,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:14:54,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:14:54,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:14:54,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:14:54,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:14:54,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:14:54,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:14:54,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:14:54,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:14:54,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:14:54,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:14:54,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:14:54,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:14:54,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:14:54,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:14:54,442 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:14:54,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:14:54,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:14:54,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:14:54,444 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:14:54,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:14:54,445 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:14:54,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:14:54,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:14:54,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:14:54,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:14:54,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:14:54,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:14:54,446 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:14:54,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:14:54,447 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:14:54,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:14:54,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:14:54,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:14:54,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:14:54,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:14:54,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:54,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:14:54,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:14:54,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:14:54,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:14:54,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:14:54,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:14:54,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:14:54,729 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:14:54,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:14:54,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:14:54,752 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:14:54,753 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:14:54,753 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product29.cil.c [2019-10-15 01:14:54,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8542686ce/4452bf2dc59f4177ae8e07386f24b5a2/FLAG9c319ecfe [2019-10-15 01:14:55,445 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:14:55,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product29.cil.c [2019-10-15 01:14:55,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8542686ce/4452bf2dc59f4177ae8e07386f24b5a2/FLAG9c319ecfe [2019-10-15 01:14:55,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8542686ce/4452bf2dc59f4177ae8e07386f24b5a2 [2019-10-15 01:14:55,636 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:14:55,638 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:14:55,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:55,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:14:55,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:14:55,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:55" (1/1) ... [2019-10-15 01:14:55,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c22b3c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:55, skipping insertion in model container [2019-10-15 01:14:55,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:55" (1/1) ... [2019-10-15 01:14:55,653 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:14:55,747 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:14:56,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:56,517 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:14:56,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:56,811 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:14:56,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:56 WrapperNode [2019-10-15 01:14:56,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:56,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:14:56,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:14:56,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:14:56,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:56" (1/1) ... [2019-10-15 01:14:56,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:56" (1/1) ... [2019-10-15 01:14:56,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:56" (1/1) ... [2019-10-15 01:14:56,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:56" (1/1) ... [2019-10-15 01:14:56,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:56" (1/1) ... [2019-10-15 01:14:56,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:56" (1/1) ... [2019-10-15 01:14:56,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:56" (1/1) ... [2019-10-15 01:14:57,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:14:57,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:14:57,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:14:57,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:14:57,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:14:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:14:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:14:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:14:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:14:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:14:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:14:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:14:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:14:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:14:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:14:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:14:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:14:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:14:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:14:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:14:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:14:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:14:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:14:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:14:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:14:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:14:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:14:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:14:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:14:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:14:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:14:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:14:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:14:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:14:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:14:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:14:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:14:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:14:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:14:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:14:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:14:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:14:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:14:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:14:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:14:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:14:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:14:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:14:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:14:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:14:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:14:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:14:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:14:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:14:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:14:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:14:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:14:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:14:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:14:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:14:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:14:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:14:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:14:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:14:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:14:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:14:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:14:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:14:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:14:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:14:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:14:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:14:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:14:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:14:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:14:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:14:57,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:14:57,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:14:57,122 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:14:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:14:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:14:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:14:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:14:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:14:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:14:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:14:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:14:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:14:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:14:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:14:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:14:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:14:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:14:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:14:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:14:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:14:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:14:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:14:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:14:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:14:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:14:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:14:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:14:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:14:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:14:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:14:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:14:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:14:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:14:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:14:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:14:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:14:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:14:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:14:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:14:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:14:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:14:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:14:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:14:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:14:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:14:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:14:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:14:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:14:57,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:14:57,135 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:14:57,136 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:14:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:14:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:14:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:14:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:14:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:14:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:14:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:14:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:14:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:14:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:14:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:14:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:14:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:14:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:14:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:14:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:14:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:14:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:14:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:14:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:14:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:14:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:14:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:14:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:14:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:14:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:14:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:14:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:14:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:14:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:14:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:14:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:14:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:14:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:14:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:14:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:14:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:14:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:14:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:14:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:14:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:14:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:14:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:14:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:14:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:14:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:14:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:14:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:14:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:14:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:14:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:14:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:14:57,156 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:14:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:14:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:14:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:14:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:14:57,157 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:14:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:14:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:14:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:14:57,158 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:14:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:14:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:14:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:14:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:14:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:14:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:14:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:14:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:14:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:14:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:14:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:14:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:14:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:14:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:14:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:14:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:14:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:14:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:14:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:14:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:14:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:14:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:14:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:14:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:14:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:14:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:14:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:14:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:14:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:14:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:14:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:14:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:14:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:14:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:14:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:14:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:14:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:14:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:14:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:14:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:14:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:14:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:14:59,481 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:14:59,482 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:14:59,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:59 BoogieIcfgContainer [2019-10-15 01:14:59,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:14:59,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:14:59,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:14:59,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:14:59,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:14:55" (1/3) ... [2019-10-15 01:14:59,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdf0c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:59, skipping insertion in model container [2019-10-15 01:14:59,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:56" (2/3) ... [2019-10-15 01:14:59,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdf0c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:59, skipping insertion in model container [2019-10-15 01:14:59,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:59" (3/3) ... [2019-10-15 01:14:59,494 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product29.cil.c [2019-10-15 01:14:59,505 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:14:59,519 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:14:59,533 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:14:59,589 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:14:59,593 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:14:59,593 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:14:59,594 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:14:59,594 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:14:59,594 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:14:59,594 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:14:59,594 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:14:59,641 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states. [2019-10-15 01:14:59,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:14:59,681 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:59,684 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:59,688 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:59,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:59,695 INFO L82 PathProgramCache]: Analyzing trace with hash 940627505, now seen corresponding path program 1 times [2019-10-15 01:14:59,705 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:59,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980062740] [2019-10-15 01:14:59,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:59,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:59,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:15:00,474 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980062740] [2019-10-15 01:15:00,475 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:00,475 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:15:00,475 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714392110] [2019-10-15 01:15:00,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:15:00,483 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:00,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:15:00,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:00,501 INFO L87 Difference]: Start difference. First operand 614 states. Second operand 2 states. [2019-10-15 01:15:00,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:00,583 INFO L93 Difference]: Finished difference Result 869 states and 1190 transitions. [2019-10-15 01:15:00,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:15:00,585 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 204 [2019-10-15 01:15:00,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:00,613 INFO L225 Difference]: With dead ends: 869 [2019-10-15 01:15:00,613 INFO L226 Difference]: Without dead ends: 557 [2019-10-15 01:15:00,628 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:00,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-10-15 01:15:00,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2019-10-15 01:15:00,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2019-10-15 01:15:00,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 764 transitions. [2019-10-15 01:15:00,752 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 764 transitions. Word has length 204 [2019-10-15 01:15:00,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:00,754 INFO L462 AbstractCegarLoop]: Abstraction has 557 states and 764 transitions. [2019-10-15 01:15:00,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:15:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 764 transitions. [2019-10-15 01:15:00,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:15:00,761 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:00,762 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:00,762 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:00,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:00,763 INFO L82 PathProgramCache]: Analyzing trace with hash 861821971, now seen corresponding path program 1 times [2019-10-15 01:15:00,763 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:00,763 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948979285] [2019-10-15 01:15:00,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:00,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:00,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:01,073 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:15:01,074 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948979285] [2019-10-15 01:15:01,074 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:01,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:01,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403776982] [2019-10-15 01:15:01,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:01,077 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:01,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:01,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:01,078 INFO L87 Difference]: Start difference. First operand 557 states and 764 transitions. Second operand 3 states. [2019-10-15 01:15:01,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:01,167 INFO L93 Difference]: Finished difference Result 852 states and 1150 transitions. [2019-10-15 01:15:01,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:01,167 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-15 01:15:01,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:01,181 INFO L225 Difference]: With dead ends: 852 [2019-10-15 01:15:01,182 INFO L226 Difference]: Without dead ends: 560 [2019-10-15 01:15:01,184 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2019-10-15 01:15:01,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2019-10-15 01:15:01,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2019-10-15 01:15:01,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 766 transitions. [2019-10-15 01:15:01,237 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 766 transitions. Word has length 205 [2019-10-15 01:15:01,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:01,240 INFO L462 AbstractCegarLoop]: Abstraction has 559 states and 766 transitions. [2019-10-15 01:15:01,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:01,240 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 766 transitions. [2019-10-15 01:15:01,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:15:01,245 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:01,245 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:01,245 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:01,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:01,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1773355193, now seen corresponding path program 1 times [2019-10-15 01:15:01,246 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:01,246 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693024650] [2019-10-15 01:15:01,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:01,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:01,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 01:15:01,448 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693024650] [2019-10-15 01:15:01,448 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:01,448 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:01,449 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182669396] [2019-10-15 01:15:01,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:01,452 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:01,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:01,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:01,453 INFO L87 Difference]: Start difference. First operand 559 states and 766 transitions. Second operand 3 states. [2019-10-15 01:15:01,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:01,544 INFO L93 Difference]: Finished difference Result 1094 states and 1530 transitions. [2019-10-15 01:15:01,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:01,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2019-10-15 01:15:01,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:01,550 INFO L225 Difference]: With dead ends: 1094 [2019-10-15 01:15:01,550 INFO L226 Difference]: Without dead ends: 600 [2019-10-15 01:15:01,554 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:01,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-10-15 01:15:01,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 599. [2019-10-15 01:15:01,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-10-15 01:15:01,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 835 transitions. [2019-10-15 01:15:01,588 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 835 transitions. Word has length 211 [2019-10-15 01:15:01,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:01,588 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 835 transitions. [2019-10-15 01:15:01,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:01,589 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 835 transitions. [2019-10-15 01:15:01,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-15 01:15:01,595 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:01,596 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:01,596 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:01,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:01,597 INFO L82 PathProgramCache]: Analyzing trace with hash 478766471, now seen corresponding path program 1 times [2019-10-15 01:15:01,597 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:01,597 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129567720] [2019-10-15 01:15:01,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:01,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:01,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:02,132 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129567720] [2019-10-15 01:15:02,132 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046442766] [2019-10-15 01:15:02,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:02,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 2987 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:02,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:03,305 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:15:03,306 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:03,731 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:03,820 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:03,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:04,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:04,077 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19, 9] total 32 [2019-10-15 01:15:04,077 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102607311] [2019-10-15 01:15:04,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:15:04,080 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:04,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:15:04,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:15:04,082 INFO L87 Difference]: Start difference. First operand 599 states and 835 transitions. Second operand 9 states. [2019-10-15 01:15:06,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:06,602 INFO L93 Difference]: Finished difference Result 1176 states and 1650 transitions. [2019-10-15 01:15:06,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:15:06,603 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 212 [2019-10-15 01:15:06,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:06,610 INFO L225 Difference]: With dead ends: 1176 [2019-10-15 01:15:06,610 INFO L226 Difference]: Without dead ends: 613 [2019-10-15 01:15:06,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 411 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=1083, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:15:06,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2019-10-15 01:15:06,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2019-10-15 01:15:06,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-10-15 01:15:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 853 transitions. [2019-10-15 01:15:06,679 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 853 transitions. Word has length 212 [2019-10-15 01:15:06,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:06,679 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 853 transitions. [2019-10-15 01:15:06,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:15:06,680 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 853 transitions. [2019-10-15 01:15:06,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:15:06,685 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:06,685 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:06,896 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:06,896 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:06,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1541922142, now seen corresponding path program 1 times [2019-10-15 01:15:06,897 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:06,897 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309993011] [2019-10-15 01:15:06,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:06,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:06,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:07,450 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:07,451 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309993011] [2019-10-15 01:15:07,451 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582038655] [2019-10-15 01:15:07,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:08,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 2988 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:08,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:08,348 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:15:08,348 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:08,657 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:08,765 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:08,839 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:08,840 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:08,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19, 7] total 28 [2019-10-15 01:15:08,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941295472] [2019-10-15 01:15:08,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:08,842 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:08,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:08,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:08,843 INFO L87 Difference]: Start difference. First operand 613 states and 853 transitions. Second operand 7 states. [2019-10-15 01:15:10,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:10,353 INFO L93 Difference]: Finished difference Result 1177 states and 1654 transitions. [2019-10-15 01:15:10,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:15:10,354 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2019-10-15 01:15:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:10,360 INFO L225 Difference]: With dead ends: 1177 [2019-10-15 01:15:10,361 INFO L226 Difference]: Without dead ends: 615 [2019-10-15 01:15:10,363 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 418 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2019-10-15 01:15:10,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-10-15 01:15:10,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2019-10-15 01:15:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-15 01:15:10,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 856 transitions. [2019-10-15 01:15:10,389 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 856 transitions. Word has length 213 [2019-10-15 01:15:10,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:10,390 INFO L462 AbstractCegarLoop]: Abstraction has 615 states and 856 transitions. [2019-10-15 01:15:10,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:10,390 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 856 transitions. [2019-10-15 01:15:10,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-15 01:15:10,394 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:10,395 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:10,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:10,610 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:10,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:10,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1444274426, now seen corresponding path program 1 times [2019-10-15 01:15:10,611 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:10,612 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740757407] [2019-10-15 01:15:10,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:10,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:10,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:11,118 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:11,118 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740757407] [2019-10-15 01:15:11,119 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073443905] [2019-10-15 01:15:11,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:11,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 2989 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:11,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:15:11,908 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:12,263 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:12,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:12,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:12,565 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:12,566 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [19] total 33 [2019-10-15 01:15:12,566 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177289329] [2019-10-15 01:15:12,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:15:12,567 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:12,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:15:12,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 01:15:12,568 INFO L87 Difference]: Start difference. First operand 615 states and 856 transitions. Second operand 16 states. [2019-10-15 01:15:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:14,460 INFO L93 Difference]: Finished difference Result 1181 states and 1654 transitions. [2019-10-15 01:15:14,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:14,461 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 214 [2019-10-15 01:15:14,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:14,465 INFO L225 Difference]: With dead ends: 1181 [2019-10-15 01:15:14,466 INFO L226 Difference]: Without dead ends: 627 [2019-10-15 01:15:14,470 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 415 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=1205, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 01:15:14,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2019-10-15 01:15:14,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 625. [2019-10-15 01:15:14,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2019-10-15 01:15:14,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 867 transitions. [2019-10-15 01:15:14,501 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 867 transitions. Word has length 214 [2019-10-15 01:15:14,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:14,501 INFO L462 AbstractCegarLoop]: Abstraction has 625 states and 867 transitions. [2019-10-15 01:15:14,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:15:14,502 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 867 transitions. [2019-10-15 01:15:14,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-10-15 01:15:14,506 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:14,507 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:14,718 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:14,718 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:14,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:14,719 INFO L82 PathProgramCache]: Analyzing trace with hash -65849621, now seen corresponding path program 2 times [2019-10-15 01:15:14,719 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:14,719 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721467786] [2019-10-15 01:15:14,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:14,720 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:14,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:15,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721467786] [2019-10-15 01:15:15,223 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235727730] [2019-10-15 01:15:15,223 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:15,739 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:15:15,740 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:15:15,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 2349 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:15:15,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:15,980 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:16,507 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:16,508 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:16,508 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [19] total 31 [2019-10-15 01:15:16,508 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814497460] [2019-10-15 01:15:16,509 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:15:16,509 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:16,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:15:16,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:15:16,510 INFO L87 Difference]: Start difference. First operand 625 states and 867 transitions. Second operand 14 states. [2019-10-15 01:15:18,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:18,848 INFO L93 Difference]: Finished difference Result 2086 states and 2938 transitions. [2019-10-15 01:15:18,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:15:18,849 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 215 [2019-10-15 01:15:18,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:18,862 INFO L225 Difference]: With dead ends: 2086 [2019-10-15 01:15:18,862 INFO L226 Difference]: Without dead ends: 1807 [2019-10-15 01:15:18,865 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 426 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2019-10-15 01:15:18,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2019-10-15 01:15:18,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1479. [2019-10-15 01:15:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1479 states. [2019-10-15 01:15:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2118 transitions. [2019-10-15 01:15:18,954 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2118 transitions. Word has length 215 [2019-10-15 01:15:18,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:18,956 INFO L462 AbstractCegarLoop]: Abstraction has 1479 states and 2118 transitions. [2019-10-15 01:15:18,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:15:18,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2118 transitions. [2019-10-15 01:15:18,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 01:15:18,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:18,963 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:19,178 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:19,179 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:19,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:19,179 INFO L82 PathProgramCache]: Analyzing trace with hash -215833164, now seen corresponding path program 1 times [2019-10-15 01:15:19,179 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:19,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341451488] [2019-10-15 01:15:19,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:19,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:19,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:19,448 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:19,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341451488] [2019-10-15 01:15:19,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510772615] [2019-10-15 01:15:19,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:20,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 2991 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:20,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:15:20,403 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:20,843 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:20,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:21,054 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:21,196 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:21,197 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:21,197 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [15] total 28 [2019-10-15 01:15:21,198 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699012117] [2019-10-15 01:15:21,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:15:21,202 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:21,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:15:21,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:21,204 INFO L87 Difference]: Start difference. First operand 1479 states and 2118 transitions. Second operand 15 states. [2019-10-15 01:15:22,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:22,921 INFO L93 Difference]: Finished difference Result 2852 states and 4112 transitions. [2019-10-15 01:15:22,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:22,922 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 216 [2019-10-15 01:15:22,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:22,930 INFO L225 Difference]: With dead ends: 2852 [2019-10-15 01:15:22,930 INFO L226 Difference]: Without dead ends: 1485 [2019-10-15 01:15:22,935 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 419 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:15:22,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2019-10-15 01:15:22,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1479. [2019-10-15 01:15:22,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1479 states. [2019-10-15 01:15:23,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2116 transitions. [2019-10-15 01:15:23,002 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2116 transitions. Word has length 216 [2019-10-15 01:15:23,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:23,003 INFO L462 AbstractCegarLoop]: Abstraction has 1479 states and 2116 transitions. [2019-10-15 01:15:23,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:15:23,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2116 transitions. [2019-10-15 01:15:23,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 01:15:23,010 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:23,011 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:23,220 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:23,221 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:23,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:23,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1729834018, now seen corresponding path program 1 times [2019-10-15 01:15:23,221 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:23,222 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7678655] [2019-10-15 01:15:23,222 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:23,222 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:23,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:23,592 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:15:23,593 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7678655] [2019-10-15 01:15:23,593 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063043435] [2019-10-15 01:15:23,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:24,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 2992 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:24,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-15 01:15:24,330 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:24,599 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:24,649 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:15:24,819 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:24,819 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [15] total 25 [2019-10-15 01:15:24,819 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230315858] [2019-10-15 01:15:24,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:15:24,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:24,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:15:24,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:15:24,822 INFO L87 Difference]: Start difference. First operand 1479 states and 2116 transitions. Second operand 12 states. [2019-10-15 01:15:26,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:26,068 INFO L93 Difference]: Finished difference Result 2313 states and 3272 transitions. [2019-10-15 01:15:26,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:15:26,068 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 217 [2019-10-15 01:15:26,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:26,081 INFO L225 Difference]: With dead ends: 2313 [2019-10-15 01:15:26,081 INFO L226 Difference]: Without dead ends: 1222 [2019-10-15 01:15:26,085 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 426 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:26,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2019-10-15 01:15:26,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1222. [2019-10-15 01:15:26,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1222 states. [2019-10-15 01:15:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1709 transitions. [2019-10-15 01:15:26,139 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1709 transitions. Word has length 217 [2019-10-15 01:15:26,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:26,139 INFO L462 AbstractCegarLoop]: Abstraction has 1222 states and 1709 transitions. [2019-10-15 01:15:26,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:15:26,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1709 transitions. [2019-10-15 01:15:26,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-15 01:15:26,145 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:26,146 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:26,363 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:26,363 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:26,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:26,363 INFO L82 PathProgramCache]: Analyzing trace with hash 357797082, now seen corresponding path program 2 times [2019-10-15 01:15:26,364 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:26,364 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347579892] [2019-10-15 01:15:26,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:26,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:26,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:26,683 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:15:26,683 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347579892] [2019-10-15 01:15:26,683 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409017846] [2019-10-15 01:15:26,683 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:27,282 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:15:27,283 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:15:27,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 01:15:27,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:27,479 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:27,889 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:15:27,889 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:27,889 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [15] total 27 [2019-10-15 01:15:27,890 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819690031] [2019-10-15 01:15:27,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:15:27,891 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:27,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:15:27,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2019-10-15 01:15:27,892 INFO L87 Difference]: Start difference. First operand 1222 states and 1709 transitions. Second operand 14 states.