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_spec9_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:18:00,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:18:00,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:18:00,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:18:00,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:18:00,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:18:00,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:18:00,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:18:00,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:18:00,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:18:00,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:18:00,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:18:00,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:18:00,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:18:00,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:18:00,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:18:00,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:18:00,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:18:00,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:18:00,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:18:00,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:18:00,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:18:00,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:18:00,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:18:00,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:18:00,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:18:00,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:18:00,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:18:00,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:18:00,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:18:00,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:18:00,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:18:00,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:18:00,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:18:00,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:18:00,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:18:00,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:18:00,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:18:00,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:18:00,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:18:00,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:18:00,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:18:00,675 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:18:00,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:18:00,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:18:00,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:18:00,677 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:18:00,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:18:00,678 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:18:00,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:18:00,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:18:00,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:18:00,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:18:00,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:18:00,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:18:00,679 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:18:00,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:18:00,679 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:18:00,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:18:00,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:18:00,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:18:00,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:18:00,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:18:00,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:18:00,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:18:00,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:18:00,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:18:00,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:18:00,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:18:00,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:18:00,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:18:00,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:18:00,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:18:00,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:18:00,971 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:18:00,971 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:18:00,972 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product20.cil.c [2019-10-15 03:18:01,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49e4e6623/7c109629183a4555bdd1bc9672af6550/FLAGbcf4e3bb3 [2019-10-15 03:18:01,652 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:18:01,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product20.cil.c [2019-10-15 03:18:01,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49e4e6623/7c109629183a4555bdd1bc9672af6550/FLAGbcf4e3bb3 [2019-10-15 03:18:01,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49e4e6623/7c109629183a4555bdd1bc9672af6550 [2019-10-15 03:18:01,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:18:01,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:18:01,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:18:01,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:18:01,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:18:01,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:18:01" (1/1) ... [2019-10-15 03:18:01,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3264c97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:01, skipping insertion in model container [2019-10-15 03:18:01,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:18:01" (1/1) ... [2019-10-15 03:18:01,924 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:18:02,013 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:18:02,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:18:02,725 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:18:02,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:18:02,980 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:18:02,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:02 WrapperNode [2019-10-15 03:18:02,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:18:02,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:18:02,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:18:02,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:18:02,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:02" (1/1) ... [2019-10-15 03:18:02,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:02" (1/1) ... [2019-10-15 03:18:03,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:02" (1/1) ... [2019-10-15 03:18:03,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:02" (1/1) ... [2019-10-15 03:18:03,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:02" (1/1) ... [2019-10-15 03:18:03,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:02" (1/1) ... [2019-10-15 03:18:03,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:02" (1/1) ... [2019-10-15 03:18:03,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:18:03,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:18:03,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:18:03,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:18:03,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:18:03,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:18:03,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:18:03,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:18:03,305 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:18:03,305 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:18:03,306 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:18:03,306 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:18:03,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:18:03,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:18:03,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:18:03,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:18:03,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:18:03,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:18:03,308 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:18:03,308 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:18:03,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:18:03,308 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:18:03,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:18:03,309 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:18:03,309 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:18:03,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:18:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:18:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:18:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:18:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:18:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:18:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:18:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:18:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:18:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:18:03,312 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:18:03,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:18:03,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:18:03,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:18:03,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:18:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:18:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:18:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:18:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:18:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:18:03,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:18:03,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:18:03,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:18:03,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:18:03,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:18:03,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:18:03,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:18:03,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:18:03,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:18:03,315 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:18:03,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:18:03,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:18:03,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:18:03,316 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:18:03,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:18:03,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:18:03,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:18:03,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:18:03,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:18:03,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:18:03,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:18:03,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:18:03,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:18:03,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:18:03,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:18:03,318 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:18:03,318 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:18:03,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:18:03,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:18:03,319 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:18:03,319 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:18:03,319 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:18:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:18:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:18:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:18:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:18:03,320 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:18:03,321 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 03:18:03,321 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:18:03,321 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:18:03,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:18:03,321 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:18:03,321 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:18:03,322 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:18:03,322 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:18:03,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:18:03,322 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:18:03,322 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:18:03,322 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:18:03,322 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:18:03,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:18:03,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:18:03,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:18:03,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:18:03,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:18:03,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:18:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:18:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:18:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:18:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:18:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:18:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:18:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:18:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:18:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:18:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:18:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:18:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:18:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:18:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:18:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:18:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:18:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:18:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:18:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:18:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:18:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:18:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:18:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:18:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:18:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:18:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:18:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:18:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:18:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:18:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:18:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:18:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:18:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:18:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:18:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:18:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:18:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:18:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:18:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:18:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:18:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:18:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:18:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:18:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:18:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:18:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:18:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:18:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:18:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:18:03,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:18:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:18:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:18:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:18:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:18:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:18:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:18:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:18:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:18:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:18:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:18:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:18:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:18:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:18:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:18:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:18:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:18:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:18:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:18:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:18:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:18:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:18:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:18:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:18:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:18:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:18:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:18:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:18:03,335 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:18:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:18:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:18:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:18:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:18:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:18:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:18:03,336 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:18:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:18:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:18:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:18:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:18:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:18:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:18:03,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:18:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:18:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:18:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:18:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:18:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:18:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:18:03,338 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:18:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:18:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:18:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:18:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:18:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:18:03,339 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:18:03,340 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:18:03,340 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:18:03,340 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:18:03,340 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:18:03,340 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:18:03,340 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:18:03,340 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:18:03,340 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:18:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:18:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:18:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:18:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:18:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:18:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:18:03,341 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:18:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:18:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:18:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:18:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:18:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:18:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:18:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:18:03,342 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:18:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 03:18:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:18:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:18:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:18:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:18:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:18:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:18:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:18:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:18:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:18:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:18:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:18:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:18:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:18:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:18:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:18:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:18:08,138 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:18:08,139 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:18:08,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:18:08 BoogieIcfgContainer [2019-10-15 03:18:08,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:18:08,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:18:08,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:18:08,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:18:08,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:18:01" (1/3) ... [2019-10-15 03:18:08,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a47b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:18:08, skipping insertion in model container [2019-10-15 03:18:08,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:02" (2/3) ... [2019-10-15 03:18:08,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a47b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:18:08, skipping insertion in model container [2019-10-15 03:18:08,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:18:08" (3/3) ... [2019-10-15 03:18:08,150 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product20.cil.c [2019-10-15 03:18:08,161 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:18:08,171 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:18:08,183 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:18:08,215 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:18:08,215 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:18:08,216 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:18:08,216 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:18:08,216 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:18:08,216 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:18:08,216 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:18:08,216 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:18:08,248 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states. [2019-10-15 03:18:08,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 03:18:08,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:08,267 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:08,269 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:08,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:08,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1053414408, now seen corresponding path program 1 times [2019-10-15 03:18:08,288 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:08,289 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556918266] [2019-10-15 03:18:08,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:08,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:08,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:09,001 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:18:09,002 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556918266] [2019-10-15 03:18:09,003 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:09,003 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:18:09,004 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473413068] [2019-10-15 03:18:09,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:18:09,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:09,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:18:09,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:18:09,028 INFO L87 Difference]: Start difference. First operand 389 states. Second operand 2 states. [2019-10-15 03:18:09,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:09,146 INFO L93 Difference]: Finished difference Result 518 states and 617 transitions. [2019-10-15 03:18:09,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:18:09,148 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 121 [2019-10-15 03:18:09,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:09,188 INFO L225 Difference]: With dead ends: 518 [2019-10-15 03:18:09,189 INFO L226 Difference]: Without dead ends: 341 [2019-10-15 03:18:09,204 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:18:09,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-10-15 03:18:09,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2019-10-15 03:18:09,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-10-15 03:18:09,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 403 transitions. [2019-10-15 03:18:09,310 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 403 transitions. Word has length 121 [2019-10-15 03:18:09,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:09,313 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 403 transitions. [2019-10-15 03:18:09,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:18:09,313 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 403 transitions. [2019-10-15 03:18:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-15 03:18:09,324 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:09,324 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:09,325 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:09,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:09,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1628387505, now seen corresponding path program 1 times [2019-10-15 03:18:09,327 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:09,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789669674] [2019-10-15 03:18:09,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:09,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:09,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:09,656 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:18:09,657 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789669674] [2019-10-15 03:18:09,657 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:09,657 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:09,658 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343328498] [2019-10-15 03:18:09,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:09,661 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:09,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:09,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:09,661 INFO L87 Difference]: Start difference. First operand 341 states and 403 transitions. Second operand 3 states. [2019-10-15 03:18:09,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:09,710 INFO L93 Difference]: Finished difference Result 503 states and 586 transitions. [2019-10-15 03:18:09,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:09,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-10-15 03:18:09,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:09,714 INFO L225 Difference]: With dead ends: 503 [2019-10-15 03:18:09,714 INFO L226 Difference]: Without dead ends: 343 [2019-10-15 03:18:09,716 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:09,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2019-10-15 03:18:09,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2019-10-15 03:18:09,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-15 03:18:09,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 405 transitions. [2019-10-15 03:18:09,740 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 405 transitions. Word has length 122 [2019-10-15 03:18:09,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:09,741 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 405 transitions. [2019-10-15 03:18:09,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:09,741 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 405 transitions. [2019-10-15 03:18:09,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-15 03:18:09,744 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:09,744 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:09,744 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:09,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:09,745 INFO L82 PathProgramCache]: Analyzing trace with hash 471512363, now seen corresponding path program 1 times [2019-10-15 03:18:09,745 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:09,745 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352075454] [2019-10-15 03:18:09,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:09,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:09,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:09,902 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:18:09,903 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352075454] [2019-10-15 03:18:09,903 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:09,903 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:09,904 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78173608] [2019-10-15 03:18:09,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:09,906 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:09,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:09,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:09,906 INFO L87 Difference]: Start difference. First operand 343 states and 405 transitions. Second operand 3 states. [2019-10-15 03:18:09,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:09,996 INFO L93 Difference]: Finished difference Result 670 states and 820 transitions. [2019-10-15 03:18:09,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:09,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-15 03:18:09,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:10,000 INFO L225 Difference]: With dead ends: 670 [2019-10-15 03:18:10,000 INFO L226 Difference]: Without dead ends: 385 [2019-10-15 03:18:10,003 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:10,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2019-10-15 03:18:10,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 384. [2019-10-15 03:18:10,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2019-10-15 03:18:10,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 476 transitions. [2019-10-15 03:18:10,051 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 476 transitions. Word has length 131 [2019-10-15 03:18:10,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:10,052 INFO L462 AbstractCegarLoop]: Abstraction has 384 states and 476 transitions. [2019-10-15 03:18:10,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:10,053 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 476 transitions. [2019-10-15 03:18:10,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 03:18:10,063 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:10,063 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:10,064 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:10,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:10,064 INFO L82 PathProgramCache]: Analyzing trace with hash 2129396188, now seen corresponding path program 1 times [2019-10-15 03:18:10,065 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:10,068 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910215652] [2019-10-15 03:18:10,069 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:10,070 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:10,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:10,362 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:18:10,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910215652] [2019-10-15 03:18:10,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:10,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:10,363 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277944721] [2019-10-15 03:18:10,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:10,368 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:10,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:10,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:10,369 INFO L87 Difference]: Start difference. First operand 384 states and 476 transitions. Second operand 3 states. [2019-10-15 03:18:10,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:10,419 INFO L93 Difference]: Finished difference Result 790 states and 1028 transitions. [2019-10-15 03:18:10,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:10,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-10-15 03:18:10,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:10,424 INFO L225 Difference]: With dead ends: 790 [2019-10-15 03:18:10,425 INFO L226 Difference]: Without dead ends: 464 [2019-10-15 03:18:10,427 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:10,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-10-15 03:18:10,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 463. [2019-10-15 03:18:10,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-10-15 03:18:10,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 612 transitions. [2019-10-15 03:18:10,456 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 612 transitions. Word has length 132 [2019-10-15 03:18:10,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:10,457 INFO L462 AbstractCegarLoop]: Abstraction has 463 states and 612 transitions. [2019-10-15 03:18:10,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:10,457 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 612 transitions. [2019-10-15 03:18:10,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-15 03:18:10,462 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:10,462 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:10,462 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:10,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:10,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1585933844, now seen corresponding path program 1 times [2019-10-15 03:18:10,463 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:10,463 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649570949] [2019-10-15 03:18:10,464 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:10,464 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:10,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:18:10,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649570949] [2019-10-15 03:18:10,683 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:10,683 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:10,683 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236114494] [2019-10-15 03:18:10,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:10,684 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:10,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:10,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:10,684 INFO L87 Difference]: Start difference. First operand 463 states and 612 transitions. Second operand 3 states. [2019-10-15 03:18:10,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:10,721 INFO L93 Difference]: Finished difference Result 675 states and 859 transitions. [2019-10-15 03:18:10,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:10,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-15 03:18:10,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:10,726 INFO L225 Difference]: With dead ends: 675 [2019-10-15 03:18:10,726 INFO L226 Difference]: Without dead ends: 527 [2019-10-15 03:18:10,727 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:10,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2019-10-15 03:18:10,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 526. [2019-10-15 03:18:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2019-10-15 03:18:10,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 685 transitions. [2019-10-15 03:18:10,755 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 685 transitions. Word has length 135 [2019-10-15 03:18:10,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:10,756 INFO L462 AbstractCegarLoop]: Abstraction has 526 states and 685 transitions. [2019-10-15 03:18:10,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:10,756 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 685 transitions. [2019-10-15 03:18:10,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 03:18:10,761 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:10,761 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 03:18:10,761 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:10,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:10,762 INFO L82 PathProgramCache]: Analyzing trace with hash -529388687, now seen corresponding path program 1 times [2019-10-15 03:18:10,762 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:10,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66369031] [2019-10-15 03:18:10,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:10,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:10,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:11,246 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:11,246 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66369031] [2019-10-15 03:18:11,246 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:11,247 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:18:11,247 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288255414] [2019-10-15 03:18:11,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:18:11,248 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:11,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:18:11,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:18:11,248 INFO L87 Difference]: Start difference. First operand 526 states and 685 transitions. Second operand 12 states. [2019-10-15 03:18:13,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:13,731 INFO L93 Difference]: Finished difference Result 1176 states and 1512 transitions. [2019-10-15 03:18:13,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:18:13,734 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2019-10-15 03:18:13,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:13,741 INFO L225 Difference]: With dead ends: 1176 [2019-10-15 03:18:13,741 INFO L226 Difference]: Without dead ends: 970 [2019-10-15 03:18:13,742 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-15 03:18:13,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2019-10-15 03:18:13,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 959. [2019-10-15 03:18:13,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 959 states. [2019-10-15 03:18:13,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1264 transitions. [2019-10-15 03:18:13,796 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1264 transitions. Word has length 227 [2019-10-15 03:18:13,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:13,796 INFO L462 AbstractCegarLoop]: Abstraction has 959 states and 1264 transitions. [2019-10-15 03:18:13,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:18:13,797 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1264 transitions. [2019-10-15 03:18:13,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-15 03:18:13,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:13,804 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 03:18:13,804 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:13,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:13,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1327849714, now seen corresponding path program 1 times [2019-10-15 03:18:13,805 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:13,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701358135] [2019-10-15 03:18:13,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:13,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:13,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:13,982 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:13,982 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701358135] [2019-10-15 03:18:13,982 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:13,983 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:13,983 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875388015] [2019-10-15 03:18:13,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:13,984 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:13,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:13,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:13,984 INFO L87 Difference]: Start difference. First operand 959 states and 1264 transitions. Second operand 3 states. [2019-10-15 03:18:14,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:14,044 INFO L93 Difference]: Finished difference Result 2158 states and 2983 transitions. [2019-10-15 03:18:14,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:14,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2019-10-15 03:18:14,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:14,053 INFO L225 Difference]: With dead ends: 2158 [2019-10-15 03:18:14,053 INFO L226 Difference]: Without dead ends: 1257 [2019-10-15 03:18:14,056 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:14,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2019-10-15 03:18:14,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1255. [2019-10-15 03:18:14,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-10-15 03:18:14,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1772 transitions. [2019-10-15 03:18:14,123 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1772 transitions. Word has length 243 [2019-10-15 03:18:14,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:14,123 INFO L462 AbstractCegarLoop]: Abstraction has 1255 states and 1772 transitions. [2019-10-15 03:18:14,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:14,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1772 transitions. [2019-10-15 03:18:14,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2019-10-15 03:18:14,131 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:14,131 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 03:18:14,132 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:14,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:14,132 INFO L82 PathProgramCache]: Analyzing trace with hash -324152982, now seen corresponding path program 1 times [2019-10-15 03:18:14,132 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:14,133 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527657822] [2019-10-15 03:18:14,133 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:14,133 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:14,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 03:18:14,528 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527657822] [2019-10-15 03:18:14,528 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:14,529 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 03:18:14,529 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049936470] [2019-10-15 03:18:14,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:18:14,530 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:14,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:18:14,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:18:14,531 INFO L87 Difference]: Start difference. First operand 1255 states and 1772 transitions. Second operand 11 states. [2019-10-15 03:18:18,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:18,090 INFO L93 Difference]: Finished difference Result 1808 states and 2403 transitions. [2019-10-15 03:18:18,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:18:18,091 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 229 [2019-10-15 03:18:18,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:18,099 INFO L225 Difference]: With dead ends: 1808 [2019-10-15 03:18:18,100 INFO L226 Difference]: Without dead ends: 1473 [2019-10-15 03:18:18,102 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-15 03:18:18,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2019-10-15 03:18:18,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1462. [2019-10-15 03:18:18,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1462 states. [2019-10-15 03:18:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2010 transitions. [2019-10-15 03:18:18,213 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2010 transitions. Word has length 229 [2019-10-15 03:18:18,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:18,215 INFO L462 AbstractCegarLoop]: Abstraction has 1462 states and 2010 transitions. [2019-10-15 03:18:18,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:18:18,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2010 transitions. [2019-10-15 03:18:18,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-15 03:18:18,233 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:18,234 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 03:18:18,234 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:18,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:18,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1127243137, now seen corresponding path program 1 times [2019-10-15 03:18:18,235 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:18,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54854850] [2019-10-15 03:18:18,235 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:18,235 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:18,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:18,410 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54854850] [2019-10-15 03:18:18,411 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:18,412 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:18,412 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653683350] [2019-10-15 03:18:18,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:18,413 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:18,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:18,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:18,414 INFO L87 Difference]: Start difference. First operand 1462 states and 2010 transitions. Second operand 3 states. [2019-10-15 03:18:18,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:18,520 INFO L93 Difference]: Finished difference Result 3436 states and 4943 transitions. [2019-10-15 03:18:18,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:18,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2019-10-15 03:18:18,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:18,536 INFO L225 Difference]: With dead ends: 3436 [2019-10-15 03:18:18,536 INFO L226 Difference]: Without dead ends: 2032 [2019-10-15 03:18:18,543 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:18,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2032 states. [2019-10-15 03:18:18,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2032 to 2030. [2019-10-15 03:18:18,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2030 states. [2019-10-15 03:18:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2030 states to 2030 states and 2978 transitions. [2019-10-15 03:18:18,662 INFO L78 Accepts]: Start accepts. Automaton has 2030 states and 2978 transitions. Word has length 244 [2019-10-15 03:18:18,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:18,663 INFO L462 AbstractCegarLoop]: Abstraction has 2030 states and 2978 transitions. [2019-10-15 03:18:18,663 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:18,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2030 states and 2978 transitions. [2019-10-15 03:18:18,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-15 03:18:18,675 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:18,675 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 03:18:18,675 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:18,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:18,676 INFO L82 PathProgramCache]: Analyzing trace with hash 626496206, now seen corresponding path program 1 times [2019-10-15 03:18:18,676 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:18,676 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092873584] [2019-10-15 03:18:18,676 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:18,676 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:18,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:18,906 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:18,906 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092873584] [2019-10-15 03:18:18,907 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:18,908 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:18,908 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841017921] [2019-10-15 03:18:18,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:18,909 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:18,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:18,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:18,910 INFO L87 Difference]: Start difference. First operand 2030 states and 2978 transitions. Second operand 3 states. [2019-10-15 03:18:19,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:19,068 INFO L93 Difference]: Finished difference Result 5092 states and 7767 transitions. [2019-10-15 03:18:19,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:19,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2019-10-15 03:18:19,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:19,089 INFO L225 Difference]: With dead ends: 5092 [2019-10-15 03:18:19,089 INFO L226 Difference]: Without dead ends: 3120 [2019-10-15 03:18:19,103 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:19,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3120 states. [2019-10-15 03:18:19,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3120 to 3118. [2019-10-15 03:18:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3118 states. [2019-10-15 03:18:19,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 4818 transitions. [2019-10-15 03:18:19,280 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 4818 transitions. Word has length 245 [2019-10-15 03:18:19,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:19,280 INFO L462 AbstractCegarLoop]: Abstraction has 3118 states and 4818 transitions. [2019-10-15 03:18:19,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:19,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 4818 transitions. [2019-10-15 03:18:19,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-15 03:18:19,295 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:19,296 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 03:18:19,296 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:19,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:19,296 INFO L82 PathProgramCache]: Analyzing trace with hash -847646017, now seen corresponding path program 1 times [2019-10-15 03:18:19,297 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:19,297 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614519566] [2019-10-15 03:18:19,297 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:19,297 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:19,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:19,456 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614519566] [2019-10-15 03:18:19,457 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:19,457 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:19,457 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865659891] [2019-10-15 03:18:19,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:19,458 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:19,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:19,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:19,458 INFO L87 Difference]: Start difference. First operand 3118 states and 4818 transitions. Second operand 3 states. [2019-10-15 03:18:19,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:19,729 INFO L93 Difference]: Finished difference Result 8388 states and 13319 transitions. [2019-10-15 03:18:19,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:19,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-10-15 03:18:19,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:19,762 INFO L225 Difference]: With dead ends: 8388 [2019-10-15 03:18:19,762 INFO L226 Difference]: Without dead ends: 5328 [2019-10-15 03:18:19,772 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:19,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2019-10-15 03:18:20,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5326. [2019-10-15 03:18:20,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5326 states. [2019-10-15 03:18:20,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 8498 transitions. [2019-10-15 03:18:20,032 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 8498 transitions. Word has length 246 [2019-10-15 03:18:20,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:20,033 INFO L462 AbstractCegarLoop]: Abstraction has 5326 states and 8498 transitions. [2019-10-15 03:18:20,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 8498 transitions. [2019-10-15 03:18:20,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-10-15 03:18:20,066 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:20,067 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 03:18:20,067 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:20,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:20,068 INFO L82 PathProgramCache]: Analyzing trace with hash 975502990, now seen corresponding path program 1 times [2019-10-15 03:18:20,068 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:20,068 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350075377] [2019-10-15 03:18:20,069 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,069 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:20,276 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:20,276 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350075377] [2019-10-15 03:18:20,276 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:20,276 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:20,277 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648818697] [2019-10-15 03:18:20,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:20,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:20,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:20,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:20,278 INFO L87 Difference]: Start difference. First operand 5326 states and 8498 transitions. Second operand 3 states. [2019-10-15 03:18:20,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:20,671 INFO L93 Difference]: Finished difference Result 14692 states and 23847 transitions. [2019-10-15 03:18:20,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:20,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-10-15 03:18:20,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:20,767 INFO L225 Difference]: With dead ends: 14692 [2019-10-15 03:18:20,767 INFO L226 Difference]: Without dead ends: 9424 [2019-10-15 03:18:20,793 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:20,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2019-10-15 03:18:21,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 9422. [2019-10-15 03:18:21,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9422 states. [2019-10-15 03:18:21,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9422 states to 9422 states and 15282 transitions. [2019-10-15 03:18:21,437 INFO L78 Accepts]: Start accepts. Automaton has 9422 states and 15282 transitions. Word has length 247 [2019-10-15 03:18:21,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:21,438 INFO L462 AbstractCegarLoop]: Abstraction has 9422 states and 15282 transitions. [2019-10-15 03:18:21,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:21,438 INFO L276 IsEmpty]: Start isEmpty. Operand 9422 states and 15282 transitions. [2019-10-15 03:18:21,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-15 03:18:21,490 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:21,490 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 03:18:21,490 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:21,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:21,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1715967229, now seen corresponding path program 1 times [2019-10-15 03:18:21,491 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:21,491 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229562811] [2019-10-15 03:18:21,491 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:21,492 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:21,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-15 03:18:22,075 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229562811] [2019-10-15 03:18:22,075 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776934064] [2019-10-15 03:18:22,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:18:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:22,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 3448 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:18:22,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:18:23,022 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-10-15 03:18:23,022 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:18:23,470 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:23,470 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1447415443] [2019-10-15 03:18:23,503 INFO L162 IcfgInterpreter]: Started Sifa with 199 locations of interest [2019-10-15 03:18:23,503 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:18:23,511 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:18:23,517 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:18:23,518 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs