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_spec27_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:49:39,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:49:39,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:49:39,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:49:39,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:49:39,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:49:39,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:49:39,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:49:39,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:49:39,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:49:39,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:49:39,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:49:39,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:49:39,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:49:39,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:49:39,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:49:39,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:49:39,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:49:39,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:49:39,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:49:39,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:49:39,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:49:39,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:49:39,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:49:39,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:49:39,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:49:39,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:49:39,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:49:39,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:49:39,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:49:39,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:49:39,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:49:39,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:49:39,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:49:39,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:49:39,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:49:39,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:49:39,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:49:39,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:49:39,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:49:39,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:49:39,762 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 [2019-10-07 14:49:39,781 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:49:39,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:49:39,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:49:39,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:49:39,783 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:49:39,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:49:39,783 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:49:39,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:49:39,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:49:39,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:49:39,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:49:39,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:49:39,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:49:39,785 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:49:39,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:49:39,785 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:49:39,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:49:39,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:49:39,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:49:39,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:49:39,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:49:39,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:49:39,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:49:39,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:49:39,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:49:39,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:49:39,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:49:39,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:49:39,788 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 [2019-10-07 14:49:40,069 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:49:40,083 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:49:40,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:49:40,088 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:49:40,089 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:49:40,090 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product29.cil.c [2019-10-07 14:49:40,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7960624/97cae194eebe44dd862c424deb3092e0/FLAG287277691 [2019-10-07 14:49:40,697 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:49:40,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product29.cil.c [2019-10-07 14:49:40,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7960624/97cae194eebe44dd862c424deb3092e0/FLAG287277691 [2019-10-07 14:49:40,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7960624/97cae194eebe44dd862c424deb3092e0 [2019-10-07 14:49:41,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:49:41,002 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:49:41,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:49:41,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:49:41,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:49:41,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:49:40" (1/1) ... [2019-10-07 14:49:41,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d974c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:41, skipping insertion in model container [2019-10-07 14:49:41,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:49:40" (1/1) ... [2019-10-07 14:49:41,020 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:49:41,106 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:49:41,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:49:41,863 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:49:42,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:49:42,163 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:49:42,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:42 WrapperNode [2019-10-07 14:49:42,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:49:42,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:49:42,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:49:42,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:49:42,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:42" (1/1) ... [2019-10-07 14:49:42,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:42" (1/1) ... [2019-10-07 14:49:42,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:42" (1/1) ... [2019-10-07 14:49:42,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:42" (1/1) ... [2019-10-07 14:49:42,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:42" (1/1) ... [2019-10-07 14:49:42,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:42" (1/1) ... [2019-10-07 14:49:42,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:42" (1/1) ... [2019-10-07 14:49:42,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:49:42,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:49:42,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:49:42,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:49:42,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:42" (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 [2019-10-07 14:49:42,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:49:42,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:49:42,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:49:42,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:49:42,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:49:42,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:49:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:49:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:49:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:49:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:49:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:49:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:49:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:49:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:49:42,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:49:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:49:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:49:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:49:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:49:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:49:42,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:49:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:49:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:49:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:49:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:49:42,479 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:49:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:49:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:49:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:49:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:49:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:49:42,480 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:49:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:49:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:49:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:49:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:49:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:49:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:49:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:49:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:49:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:49:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:49:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:49:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:49:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:49:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 14:49:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:49:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:49:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:49:42,483 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:49:42,484 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:49:42,484 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:49:42,484 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:49:42,484 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:49:42,484 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:49:42,485 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:49:42,485 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:49:42,485 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:49:42,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:49:42,485 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:49:42,485 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:49:42,486 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:49:42,486 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:49:42,486 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:49:42,486 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:49:42,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:49:42,486 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:49:42,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:49:42,487 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:49:42,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:49:42,487 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:49:42,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:49:42,487 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:49:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:49:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:49:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:49:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:49:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:49:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:49:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:49:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:49:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:49:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:49:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:49:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:49:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:49:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:49:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:49:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:49:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:49:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:49:42,491 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:49:42,491 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:49:42,491 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:49:42,491 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:49:42,491 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:49:42,491 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:49:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:49:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:49:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:49:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:49:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:49:42,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:49:42,493 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:49:42,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:49:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:49:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:49:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:49:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:49:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:49:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:49:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:49:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:49:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:49:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:49:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:49:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:49:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:49:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:49:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:49:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:49:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:49:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:49:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:49:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:49:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:49:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:49:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:49:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:49:42,500 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:49:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:49:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:49:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:49:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:49:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:49:42,501 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:49:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:49:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:49:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:49:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:49:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:49:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:49:42,502 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:49:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:49:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:49:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:49:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:49:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:49:42,503 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:49:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:49:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:49:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:49:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:49:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:49:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:49:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:49:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:49:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:49:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:49:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:49:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:49:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:49:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:49:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:49:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:49:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:49:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:49:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:49:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:49:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:49:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:49:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:49:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:49:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:49:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:49:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:49:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:49:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:49:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:49:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:49:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:49:42,509 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:49:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:49:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:49:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:49:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:49:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:49:42,510 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:49:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 14:49:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:49:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:49:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:49:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:49:42,511 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:49:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:49:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:49:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:49:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:49:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:49:42,512 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:49:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:49:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:49:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:49:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:49:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:49:42,514 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:49:42,514 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:49:42,514 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:49:42,514 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:49:42,514 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:49:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:49:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:49:42,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:49:47,715 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:49:47,716 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:49:47,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:49:47 BoogieIcfgContainer [2019-10-07 14:49:47,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:49:47,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:49:47,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:49:47,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:49:47,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:49:40" (1/3) ... [2019-10-07 14:49:47,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78152de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:49:47, skipping insertion in model container [2019-10-07 14:49:47,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:42" (2/3) ... [2019-10-07 14:49:47,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78152de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:49:47, skipping insertion in model container [2019-10-07 14:49:47,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:49:47" (3/3) ... [2019-10-07 14:49:47,728 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product29.cil.c [2019-10-07 14:49:47,739 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:49:47,753 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:49:47,766 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:49:47,806 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:49:47,807 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:49:47,807 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:49:47,807 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:49:47,807 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:49:47,807 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:49:47,808 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:49:47,808 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:49:47,839 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states. [2019-10-07 14:49:47,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-07 14:49:47,861 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:47,863 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:47,866 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:47,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:47,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1436002959, now seen corresponding path program 1 times [2019-10-07 14:49:47,885 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:47,885 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:47,885 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:47,886 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:47,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:48,533 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:49:48,534 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:48,535 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:48,535 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:49:48,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:49:48,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:49:48,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:49:48,559 INFO L87 Difference]: Start difference. First operand 420 states. Second operand 2 states. [2019-10-07 14:49:48,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:48,637 INFO L93 Difference]: Finished difference Result 591 states and 711 transitions. [2019-10-07 14:49:48,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:49:48,639 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 172 [2019-10-07 14:49:48,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:48,668 INFO L225 Difference]: With dead ends: 591 [2019-10-07 14:49:48,670 INFO L226 Difference]: Without dead ends: 374 [2019-10-07 14:49:48,681 INFO L606 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 [2019-10-07 14:49:48,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2019-10-07 14:49:48,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2019-10-07 14:49:48,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2019-10-07 14:49:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 444 transitions. [2019-10-07 14:49:48,844 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 444 transitions. Word has length 172 [2019-10-07 14:49:48,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:48,847 INFO L462 AbstractCegarLoop]: Abstraction has 374 states and 444 transitions. [2019-10-07 14:49:48,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:49:48,848 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 444 transitions. [2019-10-07 14:49:48,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-07 14:49:48,861 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:48,862 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:48,863 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:48,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:48,864 INFO L82 PathProgramCache]: Analyzing trace with hash 89763548, now seen corresponding path program 1 times [2019-10-07 14:49:48,864 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:48,864 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:48,865 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:48,865 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:48,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:49,266 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:49:49,267 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:49,267 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:49,267 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:49:49,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:49:49,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:49:49,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:49,275 INFO L87 Difference]: Start difference. First operand 374 states and 444 transitions. Second operand 3 states. [2019-10-07 14:49:49,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:49,350 INFO L93 Difference]: Finished difference Result 576 states and 675 transitions. [2019-10-07 14:49:49,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:49:49,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2019-10-07 14:49:49,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:49,362 INFO L225 Difference]: With dead ends: 576 [2019-10-07 14:49:49,363 INFO L226 Difference]: Without dead ends: 376 [2019-10-07 14:49:49,367 INFO L606 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 [2019-10-07 14:49:49,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2019-10-07 14:49:49,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2019-10-07 14:49:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2019-10-07 14:49:49,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 446 transitions. [2019-10-07 14:49:49,417 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 446 transitions. Word has length 173 [2019-10-07 14:49:49,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:49,417 INFO L462 AbstractCegarLoop]: Abstraction has 376 states and 446 transitions. [2019-10-07 14:49:49,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:49:49,418 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 446 transitions. [2019-10-07 14:49:49,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-07 14:49:49,423 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:49,423 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:49:49,424 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:49,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:49,425 INFO L82 PathProgramCache]: Analyzing trace with hash -494706049, now seen corresponding path program 1 times [2019-10-07 14:49:49,425 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:49,425 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:49,425 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:49,426 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:49,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:49,635 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:49:49,635 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:49,635 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:49,635 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:49:49,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:49:49,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:49:49,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:49,637 INFO L87 Difference]: Start difference. First operand 376 states and 446 transitions. Second operand 3 states. [2019-10-07 14:49:49,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:49,672 INFO L93 Difference]: Finished difference Result 734 states and 899 transitions. [2019-10-07 14:49:49,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:49:49,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-07 14:49:49,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:49,677 INFO L225 Difference]: With dead ends: 734 [2019-10-07 14:49:49,677 INFO L226 Difference]: Without dead ends: 416 [2019-10-07 14:49:49,679 INFO L606 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 [2019-10-07 14:49:49,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-10-07 14:49:49,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 415. [2019-10-07 14:49:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-07 14:49:49,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 514 transitions. [2019-10-07 14:49:49,705 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 514 transitions. Word has length 178 [2019-10-07 14:49:49,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:49,706 INFO L462 AbstractCegarLoop]: Abstraction has 415 states and 514 transitions. [2019-10-07 14:49:49,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:49:49,706 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 514 transitions. [2019-10-07 14:49:49,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 14:49:49,710 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:49,711 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:49:49,711 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:49,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:49,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1430160923, now seen corresponding path program 1 times [2019-10-07 14:49:49,712 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:49,712 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:49,712 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:49,712 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:49,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:49:50,691 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:50,691 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:50,691 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:49:50,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:49:50,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:49:50,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:49:50,701 INFO L87 Difference]: Start difference. First operand 415 states and 514 transitions. Second operand 28 states. [2019-10-07 14:50:00,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:00,698 INFO L93 Difference]: Finished difference Result 898 states and 1120 transitions. [2019-10-07 14:50:00,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-07 14:50:00,698 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 179 [2019-10-07 14:50:00,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:00,705 INFO L225 Difference]: With dead ends: 898 [2019-10-07 14:50:00,705 INFO L226 Difference]: Without dead ends: 706 [2019-10-07 14:50:00,708 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2019-10-07 14:50:00,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-10-07 14:50:00,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 677. [2019-10-07 14:50:00,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2019-10-07 14:50:00,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 844 transitions. [2019-10-07 14:50:00,751 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 844 transitions. Word has length 179 [2019-10-07 14:50:00,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:00,753 INFO L462 AbstractCegarLoop]: Abstraction has 677 states and 844 transitions. [2019-10-07 14:50:00,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:50:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 844 transitions. [2019-10-07 14:50:00,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-07 14:50:00,757 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:00,757 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:50:00,758 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:00,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:00,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1590483871, now seen corresponding path program 1 times [2019-10-07 14:50:00,758 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:00,759 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:00,759 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:00,759 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:00,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:00,971 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:00,971 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:00,972 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:00,972 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:50:00,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:50:00,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:50:00,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:00,973 INFO L87 Difference]: Start difference. First operand 677 states and 844 transitions. Second operand 10 states. [2019-10-07 14:50:01,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:01,048 INFO L93 Difference]: Finished difference Result 1131 states and 1422 transitions. [2019-10-07 14:50:01,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:50:01,049 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 183 [2019-10-07 14:50:01,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:01,056 INFO L225 Difference]: With dead ends: 1131 [2019-10-07 14:50:01,057 INFO L226 Difference]: Without dead ends: 697 [2019-10-07 14:50:01,059 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:01,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2019-10-07 14:50:01,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 681. [2019-10-07 14:50:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2019-10-07 14:50:01,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 847 transitions. [2019-10-07 14:50:01,101 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 847 transitions. Word has length 183 [2019-10-07 14:50:01,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:01,103 INFO L462 AbstractCegarLoop]: Abstraction has 681 states and 847 transitions. [2019-10-07 14:50:01,103 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:50:01,103 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 847 transitions. [2019-10-07 14:50:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-07 14:50:01,106 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:01,107 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:01,107 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:01,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:01,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1833101563, now seen corresponding path program 1 times [2019-10-07 14:50:01,108 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:01,108 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:01,108 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:01,108 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:01,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:02,131 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:02,131 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:02,132 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-07 14:50:02,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-07 14:50:02,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-07 14:50:02,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2019-10-07 14:50:02,134 INFO L87 Difference]: Start difference. First operand 681 states and 847 transitions. Second operand 31 states. [2019-10-07 14:50:14,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:14,872 INFO L93 Difference]: Finished difference Result 1693 states and 2128 transitions. [2019-10-07 14:50:14,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-07 14:50:14,873 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 185 [2019-10-07 14:50:14,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:14,882 INFO L225 Difference]: With dead ends: 1693 [2019-10-07 14:50:14,882 INFO L226 Difference]: Without dead ends: 1251 [2019-10-07 14:50:14,886 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=295, Invalid=3487, Unknown=0, NotChecked=0, Total=3782 [2019-10-07 14:50:14,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2019-10-07 14:50:14,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1231. [2019-10-07 14:50:14,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2019-10-07 14:50:14,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1552 transitions. [2019-10-07 14:50:14,950 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1552 transitions. Word has length 185 [2019-10-07 14:50:14,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:14,951 INFO L462 AbstractCegarLoop]: Abstraction has 1231 states and 1552 transitions. [2019-10-07 14:50:14,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-07 14:50:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1552 transitions. [2019-10-07 14:50:14,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-07 14:50:14,955 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:14,956 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:14,956 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:14,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:14,956 INFO L82 PathProgramCache]: Analyzing trace with hash 88231048, now seen corresponding path program 1 times [2019-10-07 14:50:14,957 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:14,957 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:14,957 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:14,957 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:14,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:15,590 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:50:15,591 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:15,591 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:15,591 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-07 14:50:15,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-07 14:50:15,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-07 14:50:15,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2019-10-07 14:50:15,593 INFO L87 Difference]: Start difference. First operand 1231 states and 1552 transitions. Second operand 27 states. [2019-10-07 14:50:27,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:27,462 INFO L93 Difference]: Finished difference Result 3102 states and 3885 transitions. [2019-10-07 14:50:27,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:50:27,463 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 209 [2019-10-07 14:50:27,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:27,475 INFO L225 Difference]: With dead ends: 3102 [2019-10-07 14:50:27,476 INFO L226 Difference]: Without dead ends: 2092 [2019-10-07 14:50:27,481 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=273, Invalid=2807, Unknown=0, NotChecked=0, Total=3080 [2019-10-07 14:50:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2019-10-07 14:50:27,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2011. [2019-10-07 14:50:27,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2011 states. [2019-10-07 14:50:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2011 states to 2011 states and 2484 transitions. [2019-10-07 14:50:27,590 INFO L78 Accepts]: Start accepts. Automaton has 2011 states and 2484 transitions. Word has length 209 [2019-10-07 14:50:27,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:27,590 INFO L462 AbstractCegarLoop]: Abstraction has 2011 states and 2484 transitions. [2019-10-07 14:50:27,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-07 14:50:27,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2011 states and 2484 transitions. [2019-10-07 14:50:27,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-10-07 14:50:27,596 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:27,597 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:27,597 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:27,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:27,598 INFO L82 PathProgramCache]: Analyzing trace with hash -688718894, now seen corresponding path program 1 times [2019-10-07 14:50:27,598 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:27,598 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:27,598 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:27,598 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:27,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:28,776 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:50:28,776 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:28,776 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:50:28,776 INFO L95 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 [2019-10-07 14:50:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:29,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 2980 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:50:29,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:50:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:50:29,651 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:50:29,978 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:50:29,978 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:50:30,012 INFO L162 IcfgInterpreter]: Started Sifa with 194 locations of interest [2019-10-07 14:50:30,012 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:50:30,020 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:50:30,029 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:50:30,029 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:51:35,514 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 686 [2019-10-07 14:51:39,656 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 329 DAG size of output: 267 [2019-10-07 14:51:40,057 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:51:40,433 WARN L191 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:51:40,778 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:51:41,057 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:51:41,702 WARN L191 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:51:42,370 WARN L191 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:51:43,065 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:51:43,204 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:51:43,866 WARN L191 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:51:45,219 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1031 DAG size of output: 1029 [2019-10-07 14:51:45,880 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:51:46,026 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:51:46,656 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:51:47,317 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:51:47,937 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:51:48,059 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:51:48,691 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:51:48,718 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 559 for LOIs [2019-10-07 14:51:49,144 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 14:51:49,264 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 14:51:49,388 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:51:49,884 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 948 [2019-10-07 14:51:49,885 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1079 for LOIs [2019-10-07 14:51:50,476 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:51:51,091 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:51:51,326 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:51:52,301 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:51:52,902 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:51:53,517 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:51:53,754 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:51:54,697 WARN L191 SmtUtils]: Spent 941.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:51:55,412 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:51:56,006 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:51:56,245 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:51:57,187 WARN L191 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:51:58,212 WARN L191 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 1267 DAG size of output: 1079 [2019-10-07 14:51:58,816 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:51:59,445 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 626 DAG size of output: 624 [2019-10-07 14:52:00,406 WARN L191 SmtUtils]: Spent 958.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:01,029 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:01,659 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:01,896 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:02,862 WARN L191 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:03,470 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:04,069 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:04,308 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:05,289 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:05,891 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:06,491 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:06,737 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:07,722 WARN L191 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:08,332 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:08,943 WARN L191 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:09,234 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:10,215 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:10,828 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:11,427 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:11,665 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:12,634 WARN L191 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:13,239 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:13,845 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:14,093 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:15,089 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:15,706 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:16,317 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:16,562 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:17,563 WARN L191 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:18,175 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:18,802 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:19,042 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:20,020 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:20,638 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:21,257 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2019-10-07 14:52:21,502 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:22,480 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:23,518 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:24,506 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:24,906 WARN L191 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:25,887 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:27,765 WARN L191 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1265 [2019-10-07 14:52:28,762 WARN L191 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:29,021 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:30,011 WARN L191 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:31,006 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:31,996 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:32,238 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:33,224 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:34,251 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:52:35,239 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:52:35,496 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:52:36,492 WARN L191 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:52:38,299 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1267 [2019-10-07 14:52:39,290 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:52:39,543 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:52:40,540 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:52:41,548 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:52:42,544 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:52:42,791 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:52:43,789 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:52:44,788 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:52:45,775 WARN L191 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:52:46,026 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:52:47,027 WARN L191 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:52:48,019 WARN L191 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:52:49,003 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:52:49,258 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:52:50,255 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:52:52,349 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1265 [2019-10-07 14:52:53,341 WARN L191 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:53,615 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:54,605 WARN L191 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:56,417 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1265 [2019-10-07 14:52:57,425 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:57,736 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:52:58,716 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:52:59,713 WARN L191 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:53:00,713 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:53:00,955 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:53:01,947 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:53:04,114 WARN L191 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1265 [2019-10-07 14:53:05,110 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:53:05,361 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:53:06,361 WARN L191 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:53:08,163 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1265 [2019-10-07 14:53:09,155 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:53:09,409 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:53:10,404 WARN L191 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:53:11,416 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:53:12,433 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:53:12,680 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 624 [2019-10-07 14:53:13,670 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:53:15,992 WARN L191 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1269 [2019-10-07 14:53:16,999 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:53:17,258 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:53:18,273 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:53:20,114 WARN L191 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1269 [2019-10-07 14:53:21,108 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:53:21,358 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:53:22,354 WARN L191 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:53:24,189 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1269 [2019-10-07 14:53:25,203 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:53:25,450 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:53:26,429 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:53:28,158 WARN L191 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1267 [2019-10-07 14:53:29,161 WARN L191 SmtUtils]: Spent 999.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:53:29,411 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:53:30,413 WARN L191 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:53:32,215 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1269 [2019-10-07 14:53:33,222 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:53:33,473 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:53:34,483 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:53:34,751 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:53:34,753 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:53:34,760 INFO L168 Benchmark]: Toolchain (without parser) took 233757.70 ms. Allocated memory was 145.2 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 101.2 MB in the beginning and 117.5 MB in the end (delta: -16.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2019-10-07 14:53:34,761 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 14:53:34,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1160.78 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 101.0 MB in the beginning and 133.9 MB in the end (delta: -32.9 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:34,762 INFO L168 Benchmark]: Boogie Preprocessor took 242.91 ms. Allocated memory is still 203.9 MB. Free memory was 133.9 MB in the beginning and 124.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:34,763 INFO L168 Benchmark]: RCFGBuilder took 5309.93 ms. Allocated memory was 203.9 MB in the beginning and 294.1 MB in the end (delta: 90.2 MB). Free memory was 124.4 MB in the beginning and 241.6 MB in the end (delta: -117.2 MB). Peak memory consumption was 139.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:34,764 INFO L168 Benchmark]: TraceAbstraction took 227038.86 ms. Allocated memory was 294.1 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 241.6 MB in the beginning and 117.5 MB in the end (delta: 124.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2019-10-07 14:53:34,767 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1160.78 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 101.0 MB in the beginning and 133.9 MB in the end (delta: -32.9 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 242.91 ms. Allocated memory is still 203.9 MB. Free memory was 133.9 MB in the beginning and 124.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5309.93 ms. Allocated memory was 203.9 MB in the beginning and 294.1 MB in the end (delta: 90.2 MB). Free memory was 124.4 MB in the beginning and 241.6 MB in the end (delta: -117.2 MB). Peak memory consumption was 139.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 227038.86 ms. Allocated memory was 294.1 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 241.6 MB in the beginning and 117.5 MB in the end (delta: 124.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...