/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_spec6_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:23:38,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:23:38,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:23:38,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:23:38,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:23:38,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:23:38,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:23:38,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:23:38,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:23:38,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:23:38,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:23:38,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:23:38,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:23:38,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:23:38,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:23:38,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:23:38,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:23:38,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:23:38,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:23:38,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:23:38,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:23:38,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:23:38,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:23:38,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:23:38,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:23:38,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:23:38,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:23:38,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:23:38,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:23:38,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:23:38,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:23:38,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:23:38,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:23:38,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:23:38,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:23:38,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:23:38,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:23:38,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:23:38,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:23:38,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:23:38,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:23:38,590 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 04:23:38,611 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:23:38,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:23:38,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:23:38,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:23:38,614 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:23:38,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:23:38,614 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:23:38,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:23:38,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:23:38,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:23:38,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:23:38,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:23:38,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:23:38,617 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:23:38,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:23:38,617 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:23:38,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:23:38,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:23:38,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:23:38,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:23:38,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:23:38,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:23:38,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:23:38,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:23:38,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:23:38,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:23:38,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:23:38,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:23:38,620 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 04:23:38,943 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:23:38,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:23:38,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:23:38,962 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:23:38,962 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:23:38,963 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-11-07 04:23:39,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d8d784db/f1f10be5bbe949fc9cf6f799040e0753/FLAG64a4f4a59 [2019-11-07 04:23:39,619 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:23:39,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-11-07 04:23:39,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d8d784db/f1f10be5bbe949fc9cf6f799040e0753/FLAG64a4f4a59 [2019-11-07 04:23:39,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d8d784db/f1f10be5bbe949fc9cf6f799040e0753 [2019-11-07 04:23:39,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:23:39,877 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:23:39,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:23:39,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:23:39,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:23:39,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:23:39" (1/1) ... [2019-11-07 04:23:39,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5272748f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:39, skipping insertion in model container [2019-11-07 04:23:39,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:23:39" (1/1) ... [2019-11-07 04:23:39,893 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:23:39,971 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:23:40,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:23:40,787 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:23:40,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:23:41,003 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:23:41,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:41 WrapperNode [2019-11-07 04:23:41,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:23:41,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:23:41,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:23:41,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:23:41,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:41" (1/1) ... [2019-11-07 04:23:41,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:41" (1/1) ... [2019-11-07 04:23:41,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:41" (1/1) ... [2019-11-07 04:23:41,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:41" (1/1) ... [2019-11-07 04:23:41,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:41" (1/1) ... [2019-11-07 04:23:41,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:41" (1/1) ... [2019-11-07 04:23:41,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:41" (1/1) ... [2019-11-07 04:23:41,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:23:41,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:23:41,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:23:41,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:23:41,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:41" (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 04:23:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:23:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:23:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:23:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:23:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:23:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-11-07 04:23:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 04:23:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:23:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:23:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:23:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:23:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:23:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:23:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:23:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:23:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:23:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:23:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:23:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:23:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:23:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:23:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:23:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:23:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:23:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:23:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:23:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:23:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:23:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:23:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:23:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:23:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:23:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:23:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:23:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:23:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:23:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:23:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:23:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:23:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:23:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:23:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:23:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:23:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:23:41,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:23:41,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:23:41,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:23:41,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:23:41,316 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:23:41,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:23:41,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:23:41,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:23:41,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:23:41,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:23:41,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:23:41,317 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:23:41,318 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:23:41,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:23:41,318 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:23:41,318 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:23:41,318 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:23:41,318 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:23:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:23:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:23:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:23:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:23:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:23:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:23:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:23:41,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:23:41,320 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:23:41,320 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 04:23:41,320 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:23:41,320 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:23:41,320 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:23:41,321 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:23:41,321 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:23:41,321 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:23:41,321 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:23:41,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:23:41,321 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:23:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:23:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:23:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:23:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:23:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:23:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:23:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:23:41,323 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:23:41,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 04:23:41,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 04:23:41,323 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:23:41,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:23:41,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:23:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:23:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:23:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:23:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:23:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:23:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:23:41,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:23:41,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:23:41,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:23:41,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:23:41,325 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:23:41,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:23:41,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:23:41,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:23:41,326 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:23:41,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:23:41,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:23:41,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:23:41,326 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:23:41,326 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:23:41,326 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:23:41,327 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:23:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:23:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:23:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:23:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:23:41,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:23:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:23:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:23:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:23:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:23:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:23:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:23:41,328 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:23:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:23:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:23:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:23:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:23:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:23:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:23:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:23:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:23:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-11-07 04:23:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 04:23:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:23:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:23:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:23:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:23:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:23:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:23:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:23:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:23:41,331 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:23:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:23:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:23:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:23:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:23:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:23:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:23:41,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:23:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:23:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:23:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:23:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:23:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:23:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:23:41,333 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:23:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:23:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:23:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:23:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:23:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:23:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:23:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:23:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:23:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:23:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:23:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:23:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:23:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:23:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:23:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:23:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:23:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:23:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:23:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:23:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:23:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:23:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:23:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:23:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:23:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:23:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:23:41,337 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:23:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:23:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:23:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:23:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:23:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:23:41,338 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:23:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:23:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:23:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:23:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:23:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:23:41,339 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:23:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:23:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:23:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:23:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:23:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:23:41,340 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:23:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:23:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:23:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:23:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:23:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:23:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:23:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:23:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:23:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:23:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:23:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:23:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:23:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:23:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:23:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:23:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:23:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:23:41,343 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:23:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:23:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:23:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:23:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:23:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:23:41,344 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:23:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 04:23:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:23:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 04:23:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:23:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:23:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:23:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 04:23:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:23:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:23:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:23:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:23:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:23:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:23:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:23:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:23:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:23:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:23:45,993 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:23:45,993 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:23:45,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:23:45 BoogieIcfgContainer [2019-11-07 04:23:45,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:23:45,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:23:45,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:23:46,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:23:46,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:23:39" (1/3) ... [2019-11-07 04:23:46,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233a7536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:23:46, skipping insertion in model container [2019-11-07 04:23:46,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:41" (2/3) ... [2019-11-07 04:23:46,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233a7536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:23:46, skipping insertion in model container [2019-11-07 04:23:46,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:23:45" (3/3) ... [2019-11-07 04:23:46,004 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product31.cil.c [2019-11-07 04:23:46,015 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:23:46,025 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:23:46,038 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:23:46,068 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:23:46,068 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:23:46,069 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:23:46,069 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:23:46,069 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:23:46,069 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:23:46,069 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:23:46,069 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:23:46,099 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states. [2019-11-07 04:23:46,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-11-07 04:23:46,118 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:46,119 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:46,122 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:46,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:46,128 INFO L82 PathProgramCache]: Analyzing trace with hash 275868644, now seen corresponding path program 1 times [2019-11-07 04:23:46,138 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:46,139 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723428758] [2019-11-07 04:23:46,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:23:46,786 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723428758] [2019-11-07 04:23:46,787 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:46,788 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:23:46,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175079224] [2019-11-07 04:23:46,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:23:46,795 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:46,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:23:46,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:23:46,813 INFO L87 Difference]: Start difference. First operand 417 states. Second operand 2 states. [2019-11-07 04:23:46,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:46,899 INFO L93 Difference]: Finished difference Result 642 states and 763 transitions. [2019-11-07 04:23:46,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:23:46,902 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 147 [2019-11-07 04:23:46,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:46,946 INFO L225 Difference]: With dead ends: 642 [2019-11-07 04:23:46,947 INFO L226 Difference]: Without dead ends: 396 [2019-11-07 04:23:46,960 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 04:23:46,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2019-11-07 04:23:47,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2019-11-07 04:23:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-11-07 04:23:47,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 469 transitions. [2019-11-07 04:23:47,107 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 469 transitions. Word has length 147 [2019-11-07 04:23:47,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:47,110 INFO L462 AbstractCegarLoop]: Abstraction has 396 states and 469 transitions. [2019-11-07 04:23:47,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:23:47,111 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 469 transitions. [2019-11-07 04:23:47,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-11-07 04:23:47,125 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:47,126 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:47,126 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:47,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:47,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1868310216, now seen corresponding path program 1 times [2019-11-07 04:23:47,127 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:47,127 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092098825] [2019-11-07 04:23:47,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:47,419 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:23:47,420 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092098825] [2019-11-07 04:23:47,420 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:47,420 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:47,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276809217] [2019-11-07 04:23:47,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:47,424 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:47,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:47,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:47,424 INFO L87 Difference]: Start difference. First operand 396 states and 469 transitions. Second operand 3 states. [2019-11-07 04:23:47,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:47,481 INFO L93 Difference]: Finished difference Result 627 states and 733 transitions. [2019-11-07 04:23:47,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:47,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-11-07 04:23:47,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:47,485 INFO L225 Difference]: With dead ends: 627 [2019-11-07 04:23:47,485 INFO L226 Difference]: Without dead ends: 398 [2019-11-07 04:23:47,487 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:47,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-11-07 04:23:47,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2019-11-07 04:23:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-11-07 04:23:47,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 471 transitions. [2019-11-07 04:23:47,509 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 471 transitions. Word has length 148 [2019-11-07 04:23:47,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:47,509 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 471 transitions. [2019-11-07 04:23:47,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:47,510 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 471 transitions. [2019-11-07 04:23:47,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-11-07 04:23:47,512 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:47,513 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:47,513 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:47,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:47,513 INFO L82 PathProgramCache]: Analyzing trace with hash -150332791, now seen corresponding path program 1 times [2019-11-07 04:23:47,514 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:47,514 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118123085] [2019-11-07 04:23:47,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:47,817 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:23:47,818 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118123085] [2019-11-07 04:23:47,818 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:47,818 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:47,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149610159] [2019-11-07 04:23:47,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:47,819 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:47,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:47,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:47,820 INFO L87 Difference]: Start difference. First operand 398 states and 471 transitions. Second operand 3 states. [2019-11-07 04:23:47,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:47,856 INFO L93 Difference]: Finished difference Result 778 states and 949 transitions. [2019-11-07 04:23:47,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:47,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-11-07 04:23:47,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:47,860 INFO L225 Difference]: With dead ends: 778 [2019-11-07 04:23:47,861 INFO L226 Difference]: Without dead ends: 438 [2019-11-07 04:23:47,862 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 04:23:47,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2019-11-07 04:23:47,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 437. [2019-11-07 04:23:47,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-11-07 04:23:47,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 539 transitions. [2019-11-07 04:23:47,894 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 539 transitions. Word has length 153 [2019-11-07 04:23:47,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:47,899 INFO L462 AbstractCegarLoop]: Abstraction has 437 states and 539 transitions. [2019-11-07 04:23:47,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:47,899 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 539 transitions. [2019-11-07 04:23:47,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-07 04:23:47,905 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:47,906 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:47,906 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:47,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:47,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1314254042, now seen corresponding path program 1 times [2019-11-07 04:23:47,907 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:47,908 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104678185] [2019-11-07 04:23:47,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:48,532 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:23:48,533 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104678185] [2019-11-07 04:23:48,533 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:48,533 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-11-07 04:23:48,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763882121] [2019-11-07 04:23:48,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-07 04:23:48,536 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:48,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-07 04:23:48,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-11-07 04:23:48,538 INFO L87 Difference]: Start difference. First operand 437 states and 539 transitions. Second operand 24 states. [2019-11-07 04:23:57,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:57,134 INFO L93 Difference]: Finished difference Result 1242 states and 1483 transitions. [2019-11-07 04:23:57,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-07 04:23:57,135 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 154 [2019-11-07 04:23:57,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:57,148 INFO L225 Difference]: With dead ends: 1242 [2019-11-07 04:23:57,148 INFO L226 Difference]: Without dead ends: 885 [2019-11-07 04:23:57,152 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2019-11-07 04:23:57,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2019-11-07 04:23:57,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 876. [2019-11-07 04:23:57,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-11-07 04:23:57,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1039 transitions. [2019-11-07 04:23:57,234 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1039 transitions. Word has length 154 [2019-11-07 04:23:57,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:57,238 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 1039 transitions. [2019-11-07 04:23:57,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-07 04:23:57,238 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1039 transitions. [2019-11-07 04:23:57,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-07 04:23:57,242 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:57,242 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:57,243 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:57,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:57,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1356524406, now seen corresponding path program 1 times [2019-11-07 04:23:57,243 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:57,244 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138409024] [2019-11-07 04:23:57,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:57,748 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:23:57,749 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138409024] [2019-11-07 04:23:57,749 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:57,749 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 04:23:57,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080160949] [2019-11-07 04:23:57,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:23:57,751 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:57,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:23:57,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-07 04:23:57,752 INFO L87 Difference]: Start difference. First operand 876 states and 1039 transitions. Second operand 14 states. [2019-11-07 04:24:03,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:03,034 INFO L93 Difference]: Finished difference Result 2008 states and 2350 transitions. [2019-11-07 04:24:03,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 04:24:03,035 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 160 [2019-11-07 04:24:03,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:03,044 INFO L225 Difference]: With dead ends: 2008 [2019-11-07 04:24:03,044 INFO L226 Difference]: Without dead ends: 1436 [2019-11-07 04:24:03,046 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 04:24:03,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2019-11-07 04:24:03,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1366. [2019-11-07 04:24:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2019-11-07 04:24:03,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1604 transitions. [2019-11-07 04:24:03,123 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1604 transitions. Word has length 160 [2019-11-07 04:24:03,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:03,123 INFO L462 AbstractCegarLoop]: Abstraction has 1366 states and 1604 transitions. [2019-11-07 04:24:03,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:24:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1604 transitions. [2019-11-07 04:24:03,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-11-07 04:24:03,127 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:03,128 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:03,128 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:03,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:03,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1467084693, now seen corresponding path program 1 times [2019-11-07 04:24:03,129 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:03,129 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681591575] [2019-11-07 04:24:03,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:03,279 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:03,280 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681591575] [2019-11-07 04:24:03,280 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:03,280 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:03,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306781133] [2019-11-07 04:24:03,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:03,281 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:03,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:03,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:03,282 INFO L87 Difference]: Start difference. First operand 1366 states and 1604 transitions. Second operand 3 states. [2019-11-07 04:24:03,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:03,368 INFO L93 Difference]: Finished difference Result 2786 states and 3341 transitions. [2019-11-07 04:24:03,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:03,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2019-11-07 04:24:03,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:03,381 INFO L225 Difference]: With dead ends: 2786 [2019-11-07 04:24:03,382 INFO L226 Difference]: Without dead ends: 1478 [2019-11-07 04:24:03,387 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 04:24:03,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2019-11-07 04:24:03,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1476. [2019-11-07 04:24:03,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1476 states. [2019-11-07 04:24:03,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1795 transitions. [2019-11-07 04:24:03,484 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1795 transitions. Word has length 182 [2019-11-07 04:24:03,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:03,484 INFO L462 AbstractCegarLoop]: Abstraction has 1476 states and 1795 transitions. [2019-11-07 04:24:03,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:03,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1795 transitions. [2019-11-07 04:24:03,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-11-07 04:24:03,492 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:03,492 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:03,493 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:03,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:03,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1992481138, now seen corresponding path program 1 times [2019-11-07 04:24:03,494 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:03,494 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391736161] [2019-11-07 04:24:03,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:03,833 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:03,833 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391736161] [2019-11-07 04:24:03,833 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:03,836 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:03,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325142139] [2019-11-07 04:24:03,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:03,837 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:03,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:03,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:03,838 INFO L87 Difference]: Start difference. First operand 1476 states and 1795 transitions. Second operand 3 states. [2019-11-07 04:24:03,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:03,920 INFO L93 Difference]: Finished difference Result 3101 states and 3890 transitions. [2019-11-07 04:24:03,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:03,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-11-07 04:24:03,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:03,931 INFO L225 Difference]: With dead ends: 3101 [2019-11-07 04:24:03,932 INFO L226 Difference]: Without dead ends: 1683 [2019-11-07 04:24:03,936 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 04:24:03,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2019-11-07 04:24:04,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1681. [2019-11-07 04:24:04,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1681 states. [2019-11-07 04:24:04,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2150 transitions. [2019-11-07 04:24:04,023 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2150 transitions. Word has length 183 [2019-11-07 04:24:04,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:04,024 INFO L462 AbstractCegarLoop]: Abstraction has 1681 states and 2150 transitions. [2019-11-07 04:24:04,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:04,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2150 transitions. [2019-11-07 04:24:04,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-07 04:24:04,030 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:04,030 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:04,030 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:04,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:04,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2073737266, now seen corresponding path program 1 times [2019-11-07 04:24:04,031 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:04,031 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455194092] [2019-11-07 04:24:04,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-11-07 04:24:04,394 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455194092] [2019-11-07 04:24:04,394 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:04,395 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:24:04,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467972802] [2019-11-07 04:24:04,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:24:04,396 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:04,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:24:04,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:24:04,398 INFO L87 Difference]: Start difference. First operand 1681 states and 2150 transitions. Second operand 12 states. [2019-11-07 04:24:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:09,524 INFO L93 Difference]: Finished difference Result 3792 states and 4984 transitions. [2019-11-07 04:24:09,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-07 04:24:09,525 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 189 [2019-11-07 04:24:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:09,544 INFO L225 Difference]: With dead ends: 3792 [2019-11-07 04:24:09,544 INFO L226 Difference]: Without dead ends: 2746 [2019-11-07 04:24:09,548 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2019-11-07 04:24:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2019-11-07 04:24:09,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2075. [2019-11-07 04:24:09,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2075 states. [2019-11-07 04:24:09,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2843 transitions. [2019-11-07 04:24:09,716 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2843 transitions. Word has length 189 [2019-11-07 04:24:09,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:09,718 INFO L462 AbstractCegarLoop]: Abstraction has 2075 states and 2843 transitions. [2019-11-07 04:24:09,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:24:09,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2843 transitions. [2019-11-07 04:24:09,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-11-07 04:24:09,726 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:09,727 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:09,727 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:09,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:09,727 INFO L82 PathProgramCache]: Analyzing trace with hash 285703930, now seen corresponding path program 1 times [2019-11-07 04:24:09,728 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:09,728 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864047126] [2019-11-07 04:24:09,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:09,880 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-11-07 04:24:09,882 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864047126] [2019-11-07 04:24:09,882 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:09,883 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:09,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049872798] [2019-11-07 04:24:09,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:09,884 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:09,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:09,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:09,885 INFO L87 Difference]: Start difference. First operand 2075 states and 2843 transitions. Second operand 3 states. [2019-11-07 04:24:09,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:09,994 INFO L93 Difference]: Finished difference Result 4373 states and 6142 transitions. [2019-11-07 04:24:09,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:09,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-11-07 04:24:09,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:10,008 INFO L225 Difference]: With dead ends: 4373 [2019-11-07 04:24:10,009 INFO L226 Difference]: Without dead ends: 2360 [2019-11-07 04:24:10,018 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 04:24:10,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2019-11-07 04:24:10,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2359. [2019-11-07 04:24:10,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2359 states. [2019-11-07 04:24:10,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3343 transitions. [2019-11-07 04:24:10,169 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3343 transitions. Word has length 190 [2019-11-07 04:24:10,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:10,169 INFO L462 AbstractCegarLoop]: Abstraction has 2359 states and 3343 transitions. [2019-11-07 04:24:10,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:10,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3343 transitions. [2019-11-07 04:24:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-11-07 04:24:10,184 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:10,184 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:10,184 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:10,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:10,185 INFO L82 PathProgramCache]: Analyzing trace with hash -413198012, now seen corresponding path program 1 times [2019-11-07 04:24:10,185 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:10,186 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024144487] [2019-11-07 04:24:10,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:10,544 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:10,544 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024144487] [2019-11-07 04:24:10,545 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:10,545 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:24:10,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240591479] [2019-11-07 04:24:10,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:24:10,547 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:10,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:24:10,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:24:10,547 INFO L87 Difference]: Start difference. First operand 2359 states and 3343 transitions. Second operand 12 states.