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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec8_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:12:47,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:47,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:47,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:47,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:47,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:47,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:47,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:47,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:47,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:47,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:47,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:47,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:47,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:47,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:47,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:47,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:47,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:47,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:47,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:47,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:47,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:47,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:47,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:47,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:47,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:47,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:47,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:47,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:47,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:47,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:47,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:47,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:47,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:47,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:47,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:47,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:47,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:47,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:47,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:47,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:47,541 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 [2019-10-13 23:12:47,554 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:47,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:47,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:47,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:47,555 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:47,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:47,556 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:47,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:47,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:47,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:47,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:47,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:47,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:47,557 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:47,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:47,558 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:47,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:47,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:47,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:47,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:47,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:47,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:47,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:47,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:47,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:47,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:47,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:47,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:47,560 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:12:47,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:47,840 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:47,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:47,845 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:47,845 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:47,846 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product34.cil.c [2019-10-13 23:12:47,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7960bdf4/68bdd3264bf740c3aa6312f9ef8c4d78/FLAG49500ec91 [2019-10-13 23:12:48,544 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:48,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product34.cil.c [2019-10-13 23:12:48,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7960bdf4/68bdd3264bf740c3aa6312f9ef8c4d78/FLAG49500ec91 [2019-10-13 23:12:48,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7960bdf4/68bdd3264bf740c3aa6312f9ef8c4d78 [2019-10-13 23:12:48,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:48,738 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:48,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:48,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:48,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:48,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:48" (1/1) ... [2019-10-13 23:12:48,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247dfb19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:48, skipping insertion in model container [2019-10-13 23:12:48,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:48" (1/1) ... [2019-10-13 23:12:48,754 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:48,832 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:49,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:49,594 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:49,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:49,830 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:49,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49 WrapperNode [2019-10-13 23:12:49,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:49,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:49,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:49,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:49,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:50,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:50,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:50,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:50,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:50,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:50,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (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 [2019-10-13 23:12:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:50,106 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:50,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:50,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:50,107 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:50,107 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:50,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:50,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:50,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:50,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:50,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:12:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:12:50,117 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:12:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:12:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:50,118 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:12:50,119 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:12:50,119 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:12:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:12:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:12:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:50,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:50,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:50,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:50,125 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:12:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:12:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:50,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:50,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:50,129 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:50,130 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:12:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:12:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:12:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:12:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:12:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:12:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:12:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:12:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:12:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:12:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:12:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:54,448 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:54,449 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:54,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:54 BoogieIcfgContainer [2019-10-13 23:12:54,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:54,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:54,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:54,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:54,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:48" (1/3) ... [2019-10-13 23:12:54,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e9618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:54, skipping insertion in model container [2019-10-13 23:12:54,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (2/3) ... [2019-10-13 23:12:54,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e9618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:54, skipping insertion in model container [2019-10-13 23:12:54,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:54" (3/3) ... [2019-10-13 23:12:54,460 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product34.cil.c [2019-10-13 23:12:54,467 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:54,474 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:54,485 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:54,513 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:54,513 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:54,513 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:54,513 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:54,513 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:54,514 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:54,514 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:54,514 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:54,554 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states. [2019-10-13 23:12:54,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:12:54,578 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:54,580 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:12:54,581 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:54,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:54,586 INFO L82 PathProgramCache]: Analyzing trace with hash -75206764, now seen corresponding path program 1 times [2019-10-13 23:12:54,593 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:54,593 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129546518] [2019-10-13 23:12:54,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,594 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:55,172 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:55,173 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129546518] [2019-10-13 23:12:55,174 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:55,174 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:12:55,174 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300032254] [2019-10-13 23:12:55,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:12:55,179 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:55,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:12:55,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:55,196 INFO L87 Difference]: Start difference. First operand 458 states. Second operand 2 states. [2019-10-13 23:12:55,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:55,267 INFO L93 Difference]: Finished difference Result 698 states and 832 transitions. [2019-10-13 23:12:55,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:12:55,268 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-13 23:12:55,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:55,288 INFO L225 Difference]: With dead ends: 698 [2019-10-13 23:12:55,288 INFO L226 Difference]: Without dead ends: 431 [2019-10-13 23:12:55,294 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 [2019-10-13 23:12:55,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-13 23:12:55,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2019-10-13 23:12:55,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-10-13 23:12:55,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 510 transitions. [2019-10-13 23:12:55,395 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 510 transitions. Word has length 132 [2019-10-13 23:12:55,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:55,398 INFO L462 AbstractCegarLoop]: Abstraction has 431 states and 510 transitions. [2019-10-13 23:12:55,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:12:55,398 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 510 transitions. [2019-10-13 23:12:55,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 23:12:55,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:55,404 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:12:55,404 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:55,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:55,405 INFO L82 PathProgramCache]: Analyzing trace with hash -2135594899, now seen corresponding path program 1 times [2019-10-13 23:12:55,405 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:55,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441223168] [2019-10-13 23:12:55,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:55,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:55,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:55,604 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:55,605 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441223168] [2019-10-13 23:12:55,605 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:55,605 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:55,605 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835515098] [2019-10-13 23:12:55,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:55,608 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:55,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:55,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:55,608 INFO L87 Difference]: Start difference. First operand 431 states and 510 transitions. Second operand 3 states. [2019-10-13 23:12:55,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:55,692 INFO L93 Difference]: Finished difference Result 683 states and 800 transitions. [2019-10-13 23:12:55,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:55,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-13 23:12:55,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:55,703 INFO L225 Difference]: With dead ends: 683 [2019-10-13 23:12:55,703 INFO L226 Difference]: Without dead ends: 433 [2019-10-13 23:12:55,710 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 [2019-10-13 23:12:55,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-10-13 23:12:55,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2019-10-13 23:12:55,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-13 23:12:55,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 512 transitions. [2019-10-13 23:12:55,764 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 512 transitions. Word has length 133 [2019-10-13 23:12:55,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:55,765 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 512 transitions. [2019-10-13 23:12:55,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:55,765 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 512 transitions. [2019-10-13 23:12:55,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-13 23:12:55,770 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:55,771 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:12:55,772 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:55,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:55,772 INFO L82 PathProgramCache]: Analyzing trace with hash -128607397, now seen corresponding path program 1 times [2019-10-13 23:12:55,772 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:55,772 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829365731] [2019-10-13 23:12:55,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:55,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:55,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:56,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829365731] [2019-10-13 23:12:56,052 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:56,053 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:56,053 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280322159] [2019-10-13 23:12:56,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:56,054 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:56,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:56,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:56,054 INFO L87 Difference]: Start difference. First operand 433 states and 512 transitions. Second operand 3 states. [2019-10-13 23:12:56,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:56,088 INFO L93 Difference]: Finished difference Result 850 states and 1034 transitions. [2019-10-13 23:12:56,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:56,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-13 23:12:56,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:56,093 INFO L225 Difference]: With dead ends: 850 [2019-10-13 23:12:56,093 INFO L226 Difference]: Without dead ends: 475 [2019-10-13 23:12:56,094 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 [2019-10-13 23:12:56,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2019-10-13 23:12:56,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 474. [2019-10-13 23:12:56,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-10-13 23:12:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 583 transitions. [2019-10-13 23:12:56,118 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 583 transitions. Word has length 138 [2019-10-13 23:12:56,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:56,118 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 583 transitions. [2019-10-13 23:12:56,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:56,119 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 583 transitions. [2019-10-13 23:12:56,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-13 23:12:56,122 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:56,122 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:56,123 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:56,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:56,123 INFO L82 PathProgramCache]: Analyzing trace with hash -516144309, now seen corresponding path program 1 times [2019-10-13 23:12:56,123 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:56,123 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657455178] [2019-10-13 23:12:56,124 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:56,124 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:56,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:12:56,305 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657455178] [2019-10-13 23:12:56,306 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:56,306 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:56,306 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955862680] [2019-10-13 23:12:56,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:56,307 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:56,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:56,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:56,307 INFO L87 Difference]: Start difference. First operand 474 states and 583 transitions. Second operand 3 states. [2019-10-13 23:12:56,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:56,340 INFO L93 Difference]: Finished difference Result 793 states and 957 transitions. [2019-10-13 23:12:56,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:56,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-10-13 23:12:56,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:56,344 INFO L225 Difference]: With dead ends: 793 [2019-10-13 23:12:56,345 INFO L226 Difference]: Without dead ends: 555 [2019-10-13 23:12:56,346 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:56,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2019-10-13 23:12:56,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 554. [2019-10-13 23:12:56,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2019-10-13 23:12:56,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 674 transitions. [2019-10-13 23:12:56,374 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 674 transitions. Word has length 139 [2019-10-13 23:12:56,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:56,375 INFO L462 AbstractCegarLoop]: Abstraction has 554 states and 674 transitions. [2019-10-13 23:12:56,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:56,375 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 674 transitions. [2019-10-13 23:12:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-13 23:12:56,381 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:56,381 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:56,381 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:56,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:56,382 INFO L82 PathProgramCache]: Analyzing trace with hash -22217736, now seen corresponding path program 1 times [2019-10-13 23:12:56,382 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:56,382 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800234366] [2019-10-13 23:12:56,382 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:56,382 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:56,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:56,819 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:12:56,819 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800234366] [2019-10-13 23:12:56,819 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:56,819 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:12:56,820 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267518669] [2019-10-13 23:12:56,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:12:56,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:56,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:12:56,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:12:56,821 INFO L87 Difference]: Start difference. First operand 554 states and 674 transitions. Second operand 14 states. [2019-10-13 23:13:00,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:00,425 INFO L93 Difference]: Finished difference Result 1324 states and 1599 transitions. [2019-10-13 23:13:00,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:13:00,426 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 250 [2019-10-13 23:13:00,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:00,440 INFO L225 Difference]: With dead ends: 1324 [2019-10-13 23:13:00,440 INFO L226 Difference]: Without dead ends: 1028 [2019-10-13 23:13:00,442 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:13:00,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2019-10-13 23:13:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1019. [2019-10-13 23:13:00,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2019-10-13 23:13:00,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1248 transitions. [2019-10-13 23:13:00,522 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1248 transitions. Word has length 250 [2019-10-13 23:13:00,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:00,523 INFO L462 AbstractCegarLoop]: Abstraction has 1019 states and 1248 transitions. [2019-10-13 23:13:00,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:13:00,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1248 transitions. [2019-10-13 23:13:00,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-13 23:13:00,530 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:00,530 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:00,531 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:00,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:00,531 INFO L82 PathProgramCache]: Analyzing trace with hash -954850071, now seen corresponding path program 1 times [2019-10-13 23:13:00,531 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:00,531 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244345458] [2019-10-13 23:13:00,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:00,794 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:00,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244345458] [2019-10-13 23:13:00,795 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:00,795 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:00,796 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086240382] [2019-10-13 23:13:00,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:00,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:00,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:00,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:00,797 INFO L87 Difference]: Start difference. First operand 1019 states and 1248 transitions. Second operand 3 states. [2019-10-13 23:13:00,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:00,852 INFO L93 Difference]: Finished difference Result 2144 states and 2717 transitions. [2019-10-13 23:13:00,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:00,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2019-10-13 23:13:00,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:00,858 INFO L225 Difference]: With dead ends: 2144 [2019-10-13 23:13:00,859 INFO L226 Difference]: Without dead ends: 1183 [2019-10-13 23:13:00,862 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 [2019-10-13 23:13:00,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-10-13 23:13:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1181. [2019-10-13 23:13:00,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1181 states. [2019-10-13 23:13:00,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1526 transitions. [2019-10-13 23:13:00,931 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1526 transitions. Word has length 272 [2019-10-13 23:13:00,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:00,931 INFO L462 AbstractCegarLoop]: Abstraction has 1181 states and 1526 transitions. [2019-10-13 23:13:00,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:00,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1526 transitions. [2019-10-13 23:13:00,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-13 23:13:00,941 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:00,942 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:00,942 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:00,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:00,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1982471801, now seen corresponding path program 1 times [2019-10-13 23:13:00,943 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:00,943 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277629678] [2019-10-13 23:13:00,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:01,153 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:01,153 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277629678] [2019-10-13 23:13:01,154 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:01,154 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:01,154 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539700248] [2019-10-13 23:13:01,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:01,155 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:01,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:01,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:01,156 INFO L87 Difference]: Start difference. First operand 1181 states and 1526 transitions. Second operand 3 states. [2019-10-13 23:13:01,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:01,224 INFO L93 Difference]: Finished difference Result 2610 states and 3519 transitions. [2019-10-13 23:13:01,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:01,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-13 23:13:01,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:01,234 INFO L225 Difference]: With dead ends: 2610 [2019-10-13 23:13:01,234 INFO L226 Difference]: Without dead ends: 1487 [2019-10-13 23:13:01,238 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 [2019-10-13 23:13:01,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2019-10-13 23:13:01,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1485. [2019-10-13 23:13:01,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2019-10-13 23:13:01,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2046 transitions. [2019-10-13 23:13:01,313 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2046 transitions. Word has length 273 [2019-10-13 23:13:01,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:01,313 INFO L462 AbstractCegarLoop]: Abstraction has 1485 states and 2046 transitions. [2019-10-13 23:13:01,314 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:01,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2046 transitions. [2019-10-13 23:13:01,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2019-10-13 23:13:01,367 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:01,367 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:01,368 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:01,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:01,368 INFO L82 PathProgramCache]: Analyzing trace with hash 999705909, now seen corresponding path program 1 times [2019-10-13 23:13:01,369 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:01,369 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444934651] [2019-10-13 23:13:01,369 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:01,369 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:01,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:01,561 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-13 23:13:01,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444934651] [2019-10-13 23:13:01,561 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:01,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:01,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721510365] [2019-10-13 23:13:01,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:01,563 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:01,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:01,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:01,564 INFO L87 Difference]: Start difference. First operand 1485 states and 2046 transitions. Second operand 3 states. [2019-10-13 23:13:01,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:01,665 INFO L93 Difference]: Finished difference Result 3498 states and 5039 transitions. [2019-10-13 23:13:01,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:01,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2019-10-13 23:13:01,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:01,677 INFO L225 Difference]: With dead ends: 3498 [2019-10-13 23:13:01,677 INFO L226 Difference]: Without dead ends: 2071 [2019-10-13 23:13:01,682 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 [2019-10-13 23:13:01,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2019-10-13 23:13:01,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 2069. [2019-10-13 23:13:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2019-10-13 23:13:01,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 3038 transitions. [2019-10-13 23:13:01,799 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 3038 transitions. Word has length 279 [2019-10-13 23:13:01,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:01,801 INFO L462 AbstractCegarLoop]: Abstraction has 2069 states and 3038 transitions. [2019-10-13 23:13:01,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:01,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 3038 transitions. [2019-10-13 23:13:01,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-13 23:13:01,814 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:01,814 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:01,815 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:01,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:01,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1896232409, now seen corresponding path program 1 times [2019-10-13 23:13:01,815 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:01,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616249398] [2019-10-13 23:13:01,816 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:01,816 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:01,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:02,055 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616249398] [2019-10-13 23:13:02,056 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:02,056 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:02,057 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224546488] [2019-10-13 23:13:02,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:02,058 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:02,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:02,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:02,059 INFO L87 Difference]: Start difference. First operand 2069 states and 3038 transitions. Second operand 3 states. [2019-10-13 23:13:02,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:02,251 INFO L93 Difference]: Finished difference Result 5202 states and 7935 transitions. [2019-10-13 23:13:02,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:02,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-10-13 23:13:02,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:02,270 INFO L225 Difference]: With dead ends: 5202 [2019-10-13 23:13:02,271 INFO L226 Difference]: Without dead ends: 3191 [2019-10-13 23:13:02,278 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 [2019-10-13 23:13:02,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3191 states. [2019-10-13 23:13:02,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3191 to 3189. [2019-10-13 23:13:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3189 states. [2019-10-13 23:13:02,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3189 states to 3189 states and 4926 transitions. [2019-10-13 23:13:02,444 INFO L78 Accepts]: Start accepts. Automaton has 3189 states and 4926 transitions. Word has length 275 [2019-10-13 23:13:02,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:02,445 INFO L462 AbstractCegarLoop]: Abstraction has 3189 states and 4926 transitions. [2019-10-13 23:13:02,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:02,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3189 states and 4926 transitions. [2019-10-13 23:13:02,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-13 23:13:02,471 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:02,472 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:02,472 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:02,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:02,472 INFO L82 PathProgramCache]: Analyzing trace with hash -757773739, now seen corresponding path program 1 times [2019-10-13 23:13:02,472 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:02,473 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434387721] [2019-10-13 23:13:02,473 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:02,473 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:02,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:02,692 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-13 23:13:02,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434387721] [2019-10-13 23:13:02,693 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:02,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:02,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56302754] [2019-10-13 23:13:02,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:02,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:02,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:02,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:02,695 INFO L87 Difference]: Start difference. First operand 3189 states and 4926 transitions. Second operand 3 states. [2019-10-13 23:13:02,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:02,909 INFO L93 Difference]: Finished difference Result 8466 states and 13439 transitions. [2019-10-13 23:13:02,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:02,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2019-10-13 23:13:02,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:02,941 INFO L225 Difference]: With dead ends: 8466 [2019-10-13 23:13:02,941 INFO L226 Difference]: Without dead ends: 5335 [2019-10-13 23:13:02,953 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 [2019-10-13 23:13:02,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5335 states. [2019-10-13 23:13:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5335 to 5333. [2019-10-13 23:13:03,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5333 states. [2019-10-13 23:13:03,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5333 states to 5333 states and 8510 transitions. [2019-10-13 23:13:03,268 INFO L78 Accepts]: Start accepts. Automaton has 5333 states and 8510 transitions. Word has length 281 [2019-10-13 23:13:03,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:03,269 INFO L462 AbstractCegarLoop]: Abstraction has 5333 states and 8510 transitions. [2019-10-13 23:13:03,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:03,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5333 states and 8510 transitions. [2019-10-13 23:13:03,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-13 23:13:03,300 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:03,300 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:03,301 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:03,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:03,301 INFO L82 PathProgramCache]: Analyzing trace with hash -506307271, now seen corresponding path program 1 times [2019-10-13 23:13:03,301 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:03,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328139140] [2019-10-13 23:13:03,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:03,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:03,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:03,470 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:03,470 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328139140] [2019-10-13 23:13:03,470 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:03,471 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:03,471 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047992417] [2019-10-13 23:13:03,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:03,472 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:03,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:03,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:03,472 INFO L87 Difference]: Start difference. First operand 5333 states and 8510 transitions. Second operand 3 states. [2019-10-13 23:13:03,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:03,820 INFO L93 Difference]: Finished difference Result 14706 states and 23871 transitions. [2019-10-13 23:13:03,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:03,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2019-10-13 23:13:03,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:03,881 INFO L225 Difference]: With dead ends: 14706 [2019-10-13 23:13:03,881 INFO L226 Difference]: Without dead ends: 9431 [2019-10-13 23:13:03,904 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 [2019-10-13 23:13:03,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9431 states. [2019-10-13 23:13:04,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9431 to 9429. [2019-10-13 23:13:04,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9429 states. [2019-10-13 23:13:04,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9429 states to 9429 states and 15294 transitions. [2019-10-13 23:13:04,468 INFO L78 Accepts]: Start accepts. Automaton has 9429 states and 15294 transitions. Word has length 277 [2019-10-13 23:13:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:04,468 INFO L462 AbstractCegarLoop]: Abstraction has 9429 states and 15294 transitions. [2019-10-13 23:13:04,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:04,469 INFO L276 IsEmpty]: Start isEmpty. Operand 9429 states and 15294 transitions. [2019-10-13 23:13:04,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2019-10-13 23:13:04,528 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:04,529 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:04,529 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:04,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:04,530 INFO L82 PathProgramCache]: Analyzing trace with hash 822351733, now seen corresponding path program 1 times [2019-10-13 23:13:04,530 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:04,530 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467644383] [2019-10-13 23:13:04,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:04,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:04,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:05,117 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-13 23:13:05,118 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467644383] [2019-10-13 23:13:05,118 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778979702] [2019-10-13 23:13:05,118 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 [2019-10-13 23:13:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:05,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 3878 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 23:13:05,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:13:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-13 23:13:06,093 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:13:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:06,620 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1337299831] [2019-10-13 23:13:06,652 INFO L162 IcfgInterpreter]: Started Sifa with 225 locations of interest [2019-10-13 23:13:06,653 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:13:06,660 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:13:06,667 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:13:06,668 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs