/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:26:11,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:26:11,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:26:11,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:26:11,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:26:11,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:26:11,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:26:11,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:26:11,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:26:11,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:26:11,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:26:11,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:26:11,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:26:11,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:26:11,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:26:11,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:26:11,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:26:11,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:26:11,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:26:11,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:26:11,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:26:11,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:26:11,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:26:11,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:26:11,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:26:11,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:26:11,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:26:11,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:26:11,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:26:11,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:26:11,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:26:11,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:26:11,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:26:11,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:26:11,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:26:11,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:26:11,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:26:11,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:26:11,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:26:11,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:26:11,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:26:11,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:26:11,676 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:26:11,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:26:11,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:26:11,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:26:11,678 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:26:11,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:26:11,680 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:26:11,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:26:11,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:26:11,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:26:11,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:26:11,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:26:11,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:26:11,681 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:26:11,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:26:11,682 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:26:11,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:26:11,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:26:11,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:26:11,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:26:11,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:26:11,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:26:11,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:26:11,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:26:11,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:26:11,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:26:11,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:26:11,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:26:11,685 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 [2019-11-07 04:26:11,967 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:26:11,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:26:11,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:26:11,986 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:26:11,986 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:26:11,987 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c [2019-11-07 04:26:12,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b2f1addc/f7a17d30b2304380ba99fca7cbdba6db/FLAG38272c8fe [2019-11-07 04:26:12,764 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:26:12,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c [2019-11-07 04:26:12,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b2f1addc/f7a17d30b2304380ba99fca7cbdba6db/FLAG38272c8fe [2019-11-07 04:26:12,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b2f1addc/f7a17d30b2304380ba99fca7cbdba6db [2019-11-07 04:26:12,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:26:12,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:26:12,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:26:12,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:26:12,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:26:12,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:12" (1/1) ... [2019-11-07 04:26:12,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40852bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:12, skipping insertion in model container [2019-11-07 04:26:12,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:12" (1/1) ... [2019-11-07 04:26:13,005 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:26:13,149 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:26:14,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:26:14,068 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:26:14,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:26:14,319 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:26:14,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:14 WrapperNode [2019-11-07 04:26:14,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:26:14,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:26:14,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:26:14,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:26:14,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:14" (1/1) ... [2019-11-07 04:26:14,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:14" (1/1) ... [2019-11-07 04:26:14,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:14" (1/1) ... [2019-11-07 04:26:14,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:14" (1/1) ... [2019-11-07 04:26:14,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:14" (1/1) ... [2019-11-07 04:26:14,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:14" (1/1) ... [2019-11-07 04:26:14,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:14" (1/1) ... [2019-11-07 04:26:14,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:26:14,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:26:14,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:26:14,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:26:14,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:26:14,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:26:14,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:26:14,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:26:14,587 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:26:14,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:26:14,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:26:14,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:26:14,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:26:14,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:26:14,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:26:14,590 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:26:14,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:26:14,591 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:26:14,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:26:14,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:26:14,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:26:14,594 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:26:14,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:26:14,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:26:14,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:26:14,596 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:26:14,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:26:14,596 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:26:14,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:26:14,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:26:14,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:26:14,597 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:26:14,598 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:26:14,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:26:14,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:26:14,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:26:14,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:26:14,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:26:14,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:26:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:26:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:26:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:26:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:26:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:26:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:26:14,602 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:26:14,602 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 04:26:14,602 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:26:14,602 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:26:14,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:26:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:26:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:26:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:26:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:26:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:26:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:26:14,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:26:14,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:26:14,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:26:14,604 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:26:14,604 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:26:14,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:26:14,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:26:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:26:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:26:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:26:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:26:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:26:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:26:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:26:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:26:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:26:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:26:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:26:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-11-07 04:26:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-11-07 04:26:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:26:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:26:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:26:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:26:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:26:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:26:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:26:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:26:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:26:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:26:14,611 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:26:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:26:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:26:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:26:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:26:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:26:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:26:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:26:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:26:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:26:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:26:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:26:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:26:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:26:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:26:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:26:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:26:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:26:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:26:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 04:26:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:26:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:26:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:26:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:26:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:26:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:26:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:26:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:26:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:26:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:26:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:26:14,616 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:26:14,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:26:14,617 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:26:14,617 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:26:14,617 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:26:14,618 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:26:14,618 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:26:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:26:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:26:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:26:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:26:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:26:14,620 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:26:14,620 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:26:14,620 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:26:14,620 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:26:14,620 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:26:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:26:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:26:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:26:14,622 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:26:14,622 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:26:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:26:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:26:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:26:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:26:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:26:14,626 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:26:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:26:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:26:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:26:14,628 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:26:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:26:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:26:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:26:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:26:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:26:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:26:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:26:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:26:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:26:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:26:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:26:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:26:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:26:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:26:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:26:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:26:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:26:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:26:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:26:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:26:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:26:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:26:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:26:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:26:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:26:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:26:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:26:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:26:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:26:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:26:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:26:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:26:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:26:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:26:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:26:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:26:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:26:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:26:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:26:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:26:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:26:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 04:26:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:26:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:26:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:26:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:26:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:26:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:26:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:26:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:26:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:26:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:26:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:26:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:26:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:26:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:26:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:26:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:26:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:26:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:26:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:26:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:26:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:26:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:26:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:26:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:26:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:26:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:26:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:26:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:26:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:26:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:26:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:26:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:26:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:26:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:26:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-11-07 04:26:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-11-07 04:26:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:26:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:26:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:26:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:26:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:26:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:26:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:26:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:26:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:26:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:26:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:26:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:26:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:26:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:26:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:26:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:26:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:26:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:26:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:26:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:26:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:26:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:26:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:26:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:26:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 04:26:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:26:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:26:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:26:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:26:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:26:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:26:19,472 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:26:19,473 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:26:19,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:26:19 BoogieIcfgContainer [2019-11-07 04:26:19,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:26:19,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:26:19,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:26:19,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:26:19,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:26:12" (1/3) ... [2019-11-07 04:26:19,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b3033b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:26:19, skipping insertion in model container [2019-11-07 04:26:19,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:14" (2/3) ... [2019-11-07 04:26:19,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b3033b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:26:19, skipping insertion in model container [2019-11-07 04:26:19,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:26:19" (3/3) ... [2019-11-07 04:26:19,482 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product32.cil.c [2019-11-07 04:26:19,492 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:26:19,501 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:26:19,513 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:26:19,541 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:26:19,541 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:26:19,542 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:26:19,542 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:26:19,542 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:26:19,542 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:26:19,542 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:26:19,542 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:26:19,572 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2019-11-07 04:26:19,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-07 04:26:19,590 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:19,591 INFO L410 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] [2019-11-07 04:26:19,593 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:19,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:19,599 INFO L82 PathProgramCache]: Analyzing trace with hash -226681820, now seen corresponding path program 1 times [2019-11-07 04:26:19,609 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:19,610 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065711678] [2019-11-07 04:26:19,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:26:20,249 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065711678] [2019-11-07 04:26:20,250 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:20,250 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:26:20,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574646877] [2019-11-07 04:26:20,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:26:20,257 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:20,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:26:20,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:26:20,274 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 2 states. [2019-11-07 04:26:20,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:20,362 INFO L93 Difference]: Finished difference Result 634 states and 756 transitions. [2019-11-07 04:26:20,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:26:20,364 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-11-07 04:26:20,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:20,399 INFO L225 Difference]: With dead ends: 634 [2019-11-07 04:26:20,399 INFO L226 Difference]: Without dead ends: 399 [2019-11-07 04:26:20,410 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:26:20,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-11-07 04:26:20,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2019-11-07 04:26:20,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-11-07 04:26:20,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 472 transitions. [2019-11-07 04:26:20,546 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 472 transitions. Word has length 132 [2019-11-07 04:26:20,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:20,548 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 472 transitions. [2019-11-07 04:26:20,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:26:20,548 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 472 transitions. [2019-11-07 04:26:20,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-11-07 04:26:20,554 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:20,555 INFO L410 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] [2019-11-07 04:26:20,555 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:20,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:20,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1331979660, now seen corresponding path program 1 times [2019-11-07 04:26:20,556 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:20,556 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831251222] [2019-11-07 04:26:20,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:20,748 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:26:20,748 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831251222] [2019-11-07 04:26:20,748 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:20,749 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:20,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551884849] [2019-11-07 04:26:20,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:20,751 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:20,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:20,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:20,752 INFO L87 Difference]: Start difference. First operand 399 states and 472 transitions. Second operand 3 states. [2019-11-07 04:26:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:20,796 INFO L93 Difference]: Finished difference Result 619 states and 724 transitions. [2019-11-07 04:26:20,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:20,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-11-07 04:26:20,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:20,803 INFO L225 Difference]: With dead ends: 619 [2019-11-07 04:26:20,803 INFO L226 Difference]: Without dead ends: 401 [2019-11-07 04:26:20,807 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:20,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-11-07 04:26:20,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2019-11-07 04:26:20,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-11-07 04:26:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 474 transitions. [2019-11-07 04:26:20,851 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 474 transitions. Word has length 133 [2019-11-07 04:26:20,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:20,853 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 474 transitions. [2019-11-07 04:26:20,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:20,853 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 474 transitions. [2019-11-07 04:26:20,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-11-07 04:26:20,861 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:20,862 INFO L410 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, 1, 1, 1] [2019-11-07 04:26:20,862 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:20,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:20,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1909538730, now seen corresponding path program 1 times [2019-11-07 04:26:20,863 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:20,863 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133928041] [2019-11-07 04:26:20,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:21,166 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:26:21,166 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133928041] [2019-11-07 04:26:21,167 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:21,167 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:21,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531756077] [2019-11-07 04:26:21,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:21,169 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:21,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:21,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:21,170 INFO L87 Difference]: Start difference. First operand 401 states and 474 transitions. Second operand 3 states. [2019-11-07 04:26:21,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:21,235 INFO L93 Difference]: Finished difference Result 786 states and 958 transitions. [2019-11-07 04:26:21,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:21,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-11-07 04:26:21,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:21,243 INFO L225 Difference]: With dead ends: 786 [2019-11-07 04:26:21,243 INFO L226 Difference]: Without dead ends: 443 [2019-11-07 04:26:21,245 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:21,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-11-07 04:26:21,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-11-07 04:26:21,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-11-07 04:26:21,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 545 transitions. [2019-11-07 04:26:21,280 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 545 transitions. Word has length 142 [2019-11-07 04:26:21,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:21,281 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 545 transitions. [2019-11-07 04:26:21,281 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:21,281 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 545 transitions. [2019-11-07 04:26:21,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-11-07 04:26:21,287 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:21,289 INFO L410 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, 1, 1, 1, 1] [2019-11-07 04:26:21,289 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:21,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:21,289 INFO L82 PathProgramCache]: Analyzing trace with hash -183691488, now seen corresponding path program 1 times [2019-11-07 04:26:21,290 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:21,290 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64537102] [2019-11-07 04:26:21,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:21,435 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:26:21,437 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64537102] [2019-11-07 04:26:21,437 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:21,437 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:21,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547995864] [2019-11-07 04:26:21,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:21,439 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:21,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:21,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:21,439 INFO L87 Difference]: Start difference. First operand 442 states and 545 transitions. Second operand 3 states. [2019-11-07 04:26:21,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:21,478 INFO L93 Difference]: Finished difference Result 906 states and 1166 transitions. [2019-11-07 04:26:21,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:21,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2019-11-07 04:26:21,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:21,487 INFO L225 Difference]: With dead ends: 906 [2019-11-07 04:26:21,487 INFO L226 Difference]: Without dead ends: 522 [2019-11-07 04:26:21,489 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:21,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2019-11-07 04:26:21,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 521. [2019-11-07 04:26:21,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2019-11-07 04:26:21,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 681 transitions. [2019-11-07 04:26:21,531 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 681 transitions. Word has length 143 [2019-11-07 04:26:21,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:21,533 INFO L462 AbstractCegarLoop]: Abstraction has 521 states and 681 transitions. [2019-11-07 04:26:21,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:21,534 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 681 transitions. [2019-11-07 04:26:21,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-11-07 04:26:21,541 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:21,541 INFO L410 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:21,541 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:21,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:21,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1379273147, now seen corresponding path program 1 times [2019-11-07 04:26:21,542 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:21,543 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205880106] [2019-11-07 04:26:21,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:26:21,956 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205880106] [2019-11-07 04:26:21,957 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:21,957 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:21,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246567078] [2019-11-07 04:26:21,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:21,958 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:21,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:21,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:21,959 INFO L87 Difference]: Start difference. First operand 521 states and 681 transitions. Second operand 3 states. [2019-11-07 04:26:22,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:22,001 INFO L93 Difference]: Finished difference Result 808 states and 1017 transitions. [2019-11-07 04:26:22,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:22,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-11-07 04:26:22,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:22,009 INFO L225 Difference]: With dead ends: 808 [2019-11-07 04:26:22,009 INFO L226 Difference]: Without dead ends: 602 [2019-11-07 04:26:22,011 INFO L630 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 [2019-11-07 04:26:22,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-11-07 04:26:22,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 601. [2019-11-07 04:26:22,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-11-07 04:26:22,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 772 transitions. [2019-11-07 04:26:22,049 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 772 transitions. Word has length 146 [2019-11-07 04:26:22,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:22,050 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 772 transitions. [2019-11-07 04:26:22,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:22,050 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 772 transitions. [2019-11-07 04:26:22,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-11-07 04:26:22,056 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:22,056 INFO L410 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:22,056 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:22,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:22,057 INFO L82 PathProgramCache]: Analyzing trace with hash -92984883, now seen corresponding path program 1 times [2019-11-07 04:26:22,057 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:22,057 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216385694] [2019-11-07 04:26:22,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:22,540 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:22,541 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216385694] [2019-11-07 04:26:22,542 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:22,542 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 04:26:22,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312732268] [2019-11-07 04:26:22,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:26:22,544 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:22,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:26:22,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-07 04:26:22,545 INFO L87 Difference]: Start difference. First operand 601 states and 772 transitions. Second operand 14 states. [2019-11-07 04:26:27,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:27,160 INFO L93 Difference]: Finished difference Result 1384 states and 1755 transitions. [2019-11-07 04:26:27,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 04:26:27,161 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 257 [2019-11-07 04:26:27,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:27,169 INFO L225 Difference]: With dead ends: 1384 [2019-11-07 04:26:27,169 INFO L226 Difference]: Without dead ends: 1120 [2019-11-07 04:26:27,171 INFO L630 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 [2019-11-07 04:26:27,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2019-11-07 04:26:27,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1109. [2019-11-07 04:26:27,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2019-11-07 04:26:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1438 transitions. [2019-11-07 04:26:27,293 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1438 transitions. Word has length 257 [2019-11-07 04:26:27,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:27,294 INFO L462 AbstractCegarLoop]: Abstraction has 1109 states and 1438 transitions. [2019-11-07 04:26:27,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:26:27,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1438 transitions. [2019-11-07 04:26:27,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-11-07 04:26:27,303 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:27,303 INFO L410 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] [2019-11-07 04:26:27,304 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:27,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:27,304 INFO L82 PathProgramCache]: Analyzing trace with hash -278346228, now seen corresponding path program 1 times [2019-11-07 04:26:27,304 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:27,304 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988793914] [2019-11-07 04:26:27,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:27,492 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:27,493 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988793914] [2019-11-07 04:26:27,493 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:27,494 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:27,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857958212] [2019-11-07 04:26:27,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:27,495 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:27,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:27,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:27,496 INFO L87 Difference]: Start difference. First operand 1109 states and 1438 transitions. Second operand 3 states. [2019-11-07 04:26:27,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:27,576 INFO L93 Difference]: Finished difference Result 2458 states and 3331 transitions. [2019-11-07 04:26:27,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:27,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-11-07 04:26:27,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:27,589 INFO L225 Difference]: With dead ends: 2458 [2019-11-07 04:26:27,589 INFO L226 Difference]: Without dead ends: 1407 [2019-11-07 04:26:27,593 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:27,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2019-11-07 04:26:27,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1405. [2019-11-07 04:26:27,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1405 states. [2019-11-07 04:26:27,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1946 transitions. [2019-11-07 04:26:27,686 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1946 transitions. Word has length 273 [2019-11-07 04:26:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:27,687 INFO L462 AbstractCegarLoop]: Abstraction has 1405 states and 1946 transitions. [2019-11-07 04:26:27,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:27,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1946 transitions. [2019-11-07 04:26:27,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-11-07 04:26:27,702 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:27,702 INFO L410 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] [2019-11-07 04:26:27,703 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:27,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:27,704 INFO L82 PathProgramCache]: Analyzing trace with hash 176555926, now seen corresponding path program 1 times [2019-11-07 04:26:27,704 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:27,704 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243942785] [2019-11-07 04:26:27,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:27,959 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:27,959 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243942785] [2019-11-07 04:26:27,960 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:27,960 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:27,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000659736] [2019-11-07 04:26:27,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:27,961 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:27,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:27,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:27,962 INFO L87 Difference]: Start difference. First operand 1405 states and 1946 transitions. Second operand 3 states. [2019-11-07 04:26:28,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:28,049 INFO L93 Difference]: Finished difference Result 3322 states and 4815 transitions. [2019-11-07 04:26:28,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:28,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-11-07 04:26:28,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:28,062 INFO L225 Difference]: With dead ends: 3322 [2019-11-07 04:26:28,062 INFO L226 Difference]: Without dead ends: 1975 [2019-11-07 04:26:28,068 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:28,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2019-11-07 04:26:28,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1973. [2019-11-07 04:26:28,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1973 states. [2019-11-07 04:26:28,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2914 transitions. [2019-11-07 04:26:28,170 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2914 transitions. Word has length 274 [2019-11-07 04:26:28,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:28,171 INFO L462 AbstractCegarLoop]: Abstraction has 1973 states and 2914 transitions. [2019-11-07 04:26:28,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:28,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2914 transitions. [2019-11-07 04:26:28,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-11-07 04:26:28,183 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:28,184 INFO L410 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] [2019-11-07 04:26:28,184 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:28,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:28,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1586240276, now seen corresponding path program 1 times [2019-11-07 04:26:28,185 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:28,185 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644382559] [2019-11-07 04:26:28,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:28,357 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644382559] [2019-11-07 04:26:28,358 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:28,358 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:28,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87522419] [2019-11-07 04:26:28,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:28,359 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:28,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:28,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:28,360 INFO L87 Difference]: Start difference. First operand 1973 states and 2914 transitions. Second operand 3 states. [2019-11-07 04:26:28,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:28,489 INFO L93 Difference]: Finished difference Result 4978 states and 7639 transitions. [2019-11-07 04:26:28,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:28,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-11-07 04:26:28,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:28,509 INFO L225 Difference]: With dead ends: 4978 [2019-11-07 04:26:28,510 INFO L226 Difference]: Without dead ends: 3063 [2019-11-07 04:26:28,517 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:28,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2019-11-07 04:26:28,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3061. [2019-11-07 04:26:28,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3061 states. [2019-11-07 04:26:28,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 4754 transitions. [2019-11-07 04:26:28,746 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 4754 transitions. Word has length 275 [2019-11-07 04:26:28,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:28,747 INFO L462 AbstractCegarLoop]: Abstraction has 3061 states and 4754 transitions. [2019-11-07 04:26:28,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:28,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 4754 transitions. [2019-11-07 04:26:28,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2019-11-07 04:26:28,765 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:28,765 INFO L410 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] [2019-11-07 04:26:28,766 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:28,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:28,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1325756234, now seen corresponding path program 1 times [2019-11-07 04:26:28,766 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:28,766 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599155953] [2019-11-07 04:26:28,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:28,946 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:28,947 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599155953] [2019-11-07 04:26:28,947 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:28,947 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:28,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829853697] [2019-11-07 04:26:28,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:28,948 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:28,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:28,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:28,949 INFO L87 Difference]: Start difference. First operand 3061 states and 4754 transitions. Second operand 3 states. [2019-11-07 04:26:29,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:29,134 INFO L93 Difference]: Finished difference Result 8274 states and 13191 transitions. [2019-11-07 04:26:29,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:29,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2019-11-07 04:26:29,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:29,169 INFO L225 Difference]: With dead ends: 8274 [2019-11-07 04:26:29,169 INFO L226 Difference]: Without dead ends: 5271 [2019-11-07 04:26:29,181 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5271 states. [2019-11-07 04:26:29,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5271 to 5269. [2019-11-07 04:26:29,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5269 states. [2019-11-07 04:26:29,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 8434 transitions. [2019-11-07 04:26:29,555 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 8434 transitions. Word has length 276 [2019-11-07 04:26:29,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:29,556 INFO L462 AbstractCegarLoop]: Abstraction has 5269 states and 8434 transitions. [2019-11-07 04:26:29,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:29,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 8434 transitions. [2019-11-07 04:26:29,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-11-07 04:26:29,598 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:29,598 INFO L410 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] [2019-11-07 04:26:29,599 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:29,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:29,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1177865268, now seen corresponding path program 1 times [2019-11-07 04:26:29,600 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:29,600 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083965231] [2019-11-07 04:26:29,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:29,790 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:29,790 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083965231] [2019-11-07 04:26:29,791 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:29,791 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:29,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405344873] [2019-11-07 04:26:29,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:29,792 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:29,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:29,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:29,793 INFO L87 Difference]: Start difference. First operand 5269 states and 8434 transitions. Second operand 3 states. [2019-11-07 04:26:30,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:30,135 INFO L93 Difference]: Finished difference Result 14578 states and 23719 transitions. [2019-11-07 04:26:30,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:30,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2019-11-07 04:26:30,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:30,197 INFO L225 Difference]: With dead ends: 14578 [2019-11-07 04:26:30,197 INFO L226 Difference]: Without dead ends: 9367 [2019-11-07 04:26:30,219 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:30,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9367 states. [2019-11-07 04:26:30,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9367 to 9365. [2019-11-07 04:26:30,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9365 states. [2019-11-07 04:26:30,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 15218 transitions. [2019-11-07 04:26:30,943 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 15218 transitions. Word has length 277 [2019-11-07 04:26:30,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:30,944 INFO L462 AbstractCegarLoop]: Abstraction has 9365 states and 15218 transitions. [2019-11-07 04:26:30,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:30,944 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 15218 transitions. [2019-11-07 04:26:31,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-11-07 04:26:31,007 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:31,008 INFO L410 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, 1] [2019-11-07 04:26:31,008 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:31,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:31,009 INFO L82 PathProgramCache]: Analyzing trace with hash 373203796, now seen corresponding path program 1 times [2019-11-07 04:26:31,009 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:31,009 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503579372] [2019-11-07 04:26:31,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:31,681 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503579372] [2019-11-07 04:26:31,681 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214351243] [2019-11-07 04:26:31,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:26:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:32,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 3862 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:26:32,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:26:32,728 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-11-07 04:26:32,728 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:26:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:33,251 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1251702852] [2019-11-07 04:26:33,285 INFO L159 IcfgInterpreter]: Started Sifa with 225 locations of interest [2019-11-07 04:26:33,285 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:26:33,293 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:26:33,299 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:26:33,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs