java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:00:02,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:00:02,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:00:02,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:00:02,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:00:02,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:00:02,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:00:02,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:00:02,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:00:02,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:00:02,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:00:02,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:00:02,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:00:02,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:00:02,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:00:02,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:00:02,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:00:02,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:00:02,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:00:02,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:00:02,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:00:02,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:00:02,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:00:02,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:00:02,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:00:02,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:00:02,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:00:02,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:00:02,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:00:02,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:00:02,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:00:02,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:00:02,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:00:02,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:00:02,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:00:02,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:00:02,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:00:02,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:00:02,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:00:02,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:00:02,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:00:02,610 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 15:00:02,624 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:00:02,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:00:02,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:00:02,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:00:02,626 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:00:02,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:00:02,626 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:00:02,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:00:02,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:00:02,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:00:02,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:00:02,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:00:02,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:00:02,628 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:00:02,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:00:02,628 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:00:02,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:00:02,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:00:02,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:00:02,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:00:02,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:00:02,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:00:02,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:00:02,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:00:02,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:00:02,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:00:02,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:00:02,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:00:02,631 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 15:00:02,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:00:02,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:00:02,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:00:02,971 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:00:02,972 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:00:02,973 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product16.cil.c [2019-10-07 15:00:03,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/310625bf4/f707579d0ad846a1a47aef99db753977/FLAGb73926ecb [2019-10-07 15:00:03,778 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:00:03,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product16.cil.c [2019-10-07 15:00:03,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/310625bf4/f707579d0ad846a1a47aef99db753977/FLAGb73926ecb [2019-10-07 15:00:03,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/310625bf4/f707579d0ad846a1a47aef99db753977 [2019-10-07 15:00:03,921 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:00:03,923 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:00:03,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:00:03,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:00:03,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:00:03,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:00:03" (1/1) ... [2019-10-07 15:00:03,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e788b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:03, skipping insertion in model container [2019-10-07 15:00:03,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:00:03" (1/1) ... [2019-10-07 15:00:03,939 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:00:04,027 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:00:04,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:00:04,836 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:00:05,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:00:05,126 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:00:05,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:05 WrapperNode [2019-10-07 15:00:05,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:00:05,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:00:05,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:00:05,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:00:05,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:05" (1/1) ... [2019-10-07 15:00:05,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:05" (1/1) ... [2019-10-07 15:00:05,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:05" (1/1) ... [2019-10-07 15:00:05,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:05" (1/1) ... [2019-10-07 15:00:05,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:05" (1/1) ... [2019-10-07 15:00:05,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:05" (1/1) ... [2019-10-07 15:00:05,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:05" (1/1) ... [2019-10-07 15:00:05,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:00:05,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:00:05,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:00:05,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:00:05,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:05" (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 15:00:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:00:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:00:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:00:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:00:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:00:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:00:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:00:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:00:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:00:05,384 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:00:05,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:00:05,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:00:05,384 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:00:05,385 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:00:05,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:00:05,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:00:05,385 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:00:05,386 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:00:05,386 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:00:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:00:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:00:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:00:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 15:00:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:00:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:00:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:00:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:00:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:00:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:00:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:00:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:00:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:00:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:00:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:00:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:00:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:00:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:00:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:00:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:00:05,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:00:05,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:00:05,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:00:05,391 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:00:05,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:00:05,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:00:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:00:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:00:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:00:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:00:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:00:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:00:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:00:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:00:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:00:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:00:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:00:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:00:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:00:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:00:05,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:00:05,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:00:05,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:00:05,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:00:05,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:00:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:00:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:00:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:00:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:00:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:00:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:00:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:00:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:00:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:00:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:00:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:00:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:00:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:00:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:00:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:00:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:00:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:00:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:00:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:00:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:00:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:00:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:00:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:00:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:00:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:00:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:00:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:00:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:00:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:00:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:00:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:00:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:00:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:00:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:00:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:00:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 15:00:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:00:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:00:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:00:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:00:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:00:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:00:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:00:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:00:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:00:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 15:00:05,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:00:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:00:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:00:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:00:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:00:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:00:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:00:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:00:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:00:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:00:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:00:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:00:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:00:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:00:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:00:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:00:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:00:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:00:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:00:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:00:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:00:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:00:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:00:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:00:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:00:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:00:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:00:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:00:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:00:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:00:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:00:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:00:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:00:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:00:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:00:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:00:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:00:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:00:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 15:00:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:00:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:00:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:00:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:00:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:00:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:00:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:00:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:00:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:00:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:00:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:00:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:00:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:00:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:00:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:00:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:00:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:00:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:00:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:00:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:00:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:00:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:00:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:00:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:00:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:00:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:00:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:00:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:00:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:00:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:00:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:00:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:00:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:00:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:00:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:00:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:00:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:00:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:00:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:00:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:00:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:00:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:00:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:00:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:00:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:00:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:00:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:00:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:00:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:00:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:00:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:00:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:00:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:00:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:00:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:00:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:00:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:00:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:00:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:00:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:00:05,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:00:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:00:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:00:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:00:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:00:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:00:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:00:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 15:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:00:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 15:00:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:00:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:00:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:00:10,269 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:00:10,270 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:00:10,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:00:10 BoogieIcfgContainer [2019-10-07 15:00:10,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:00:10,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:00:10,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:00:10,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:00:10,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:00:03" (1/3) ... [2019-10-07 15:00:10,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5183db2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:00:10, skipping insertion in model container [2019-10-07 15:00:10,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:00:05" (2/3) ... [2019-10-07 15:00:10,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5183db2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:00:10, skipping insertion in model container [2019-10-07 15:00:10,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:00:10" (3/3) ... [2019-10-07 15:00:10,283 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product16.cil.c [2019-10-07 15:00:10,293 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:00:10,304 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:00:10,315 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:00:10,353 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:00:10,354 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:00:10,354 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:00:10,354 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:00:10,354 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:00:10,354 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:00:10,354 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:00:10,355 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:00:10,382 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states. [2019-10-07 15:00:10,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-07 15:00:10,399 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:10,401 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:10,403 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:10,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:10,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1316040311, now seen corresponding path program 1 times [2019-10-07 15:00:10,419 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:10,419 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:10,420 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:10,420 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:10,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:11,101 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:11,101 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:11,102 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:00:11,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:00:11,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:00:11,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:00:11,126 INFO L87 Difference]: Start difference. First operand 355 states. Second operand 2 states. [2019-10-07 15:00:11,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:11,190 INFO L93 Difference]: Finished difference Result 518 states and 614 transitions. [2019-10-07 15:00:11,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:00:11,192 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-07 15:00:11,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:11,222 INFO L225 Difference]: With dead ends: 518 [2019-10-07 15:00:11,223 INFO L226 Difference]: Without dead ends: 334 [2019-10-07 15:00:11,234 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 15:00:11,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-10-07 15:00:11,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2019-10-07 15:00:11,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2019-10-07 15:00:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 395 transitions. [2019-10-07 15:00:11,368 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 395 transitions. Word has length 136 [2019-10-07 15:00:11,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:11,370 INFO L462 AbstractCegarLoop]: Abstraction has 334 states and 395 transitions. [2019-10-07 15:00:11,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:00:11,371 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 395 transitions. [2019-10-07 15:00:11,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-07 15:00:11,376 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:11,377 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:11,377 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:11,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:11,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1761776534, now seen corresponding path program 1 times [2019-10-07 15:00:11,378 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:11,378 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:11,378 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:11,378 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:11,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:11,618 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:11,618 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:11,619 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:11,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:11,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:11,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:11,624 INFO L87 Difference]: Start difference. First operand 334 states and 395 transitions. Second operand 3 states. [2019-10-07 15:00:11,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:11,680 INFO L93 Difference]: Finished difference Result 503 states and 585 transitions. [2019-10-07 15:00:11,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:11,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-07 15:00:11,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:11,685 INFO L225 Difference]: With dead ends: 503 [2019-10-07 15:00:11,685 INFO L226 Difference]: Without dead ends: 336 [2019-10-07 15:00:11,688 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 15:00:11,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-10-07 15:00:11,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2019-10-07 15:00:11,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-10-07 15:00:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 397 transitions. [2019-10-07 15:00:11,722 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 397 transitions. Word has length 137 [2019-10-07 15:00:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:11,723 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 397 transitions. [2019-10-07 15:00:11,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 397 transitions. [2019-10-07 15:00:11,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 15:00:11,727 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:11,728 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:11,728 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:11,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:11,728 INFO L82 PathProgramCache]: Analyzing trace with hash -853202184, now seen corresponding path program 1 times [2019-10-07 15:00:11,729 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:11,729 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:11,729 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:11,729 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:11,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:11,976 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:11,976 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:11,976 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:11,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:11,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:11,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:11,978 INFO L87 Difference]: Start difference. First operand 336 states and 397 transitions. Second operand 3 states. [2019-10-07 15:00:12,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:12,015 INFO L93 Difference]: Finished difference Result 654 states and 801 transitions. [2019-10-07 15:00:12,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:12,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-07 15:00:12,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:12,021 INFO L225 Difference]: With dead ends: 654 [2019-10-07 15:00:12,021 INFO L226 Difference]: Without dead ends: 376 [2019-10-07 15:00:12,023 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 15:00:12,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2019-10-07 15:00:12,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 375. [2019-10-07 15:00:12,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-07 15:00:12,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 465 transitions. [2019-10-07 15:00:12,053 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 465 transitions. Word has length 142 [2019-10-07 15:00:12,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:12,054 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 465 transitions. [2019-10-07 15:00:12,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:12,054 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 465 transitions. [2019-10-07 15:00:12,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 15:00:12,058 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:12,059 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:12,059 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:12,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1581148376, now seen corresponding path program 1 times [2019-10-07 15:00:12,060 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:12,060 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:12,061 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:12,061 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:12,720 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:00:12,720 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:12,720 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:12,721 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-07 15:00:12,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-07 15:00:12,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-07 15:00:12,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-10-07 15:00:12,727 INFO L87 Difference]: Start difference. First operand 375 states and 465 transitions. Second operand 22 states. [2019-10-07 15:00:18,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:18,824 INFO L93 Difference]: Finished difference Result 940 states and 1116 transitions. [2019-10-07 15:00:18,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 15:00:18,828 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 143 [2019-10-07 15:00:18,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:18,836 INFO L225 Difference]: With dead ends: 940 [2019-10-07 15:00:18,836 INFO L226 Difference]: Without dead ends: 696 [2019-10-07 15:00:18,838 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=1929, Unknown=0, NotChecked=0, Total=2162 [2019-10-07 15:00:18,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2019-10-07 15:00:18,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 687. [2019-10-07 15:00:18,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 687 states. [2019-10-07 15:00:18,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 813 transitions. [2019-10-07 15:00:18,890 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 813 transitions. Word has length 143 [2019-10-07 15:00:18,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:18,892 INFO L462 AbstractCegarLoop]: Abstraction has 687 states and 813 transitions. [2019-10-07 15:00:18,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-07 15:00:18,892 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 813 transitions. [2019-10-07 15:00:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 15:00:18,895 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:18,896 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:18,896 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:18,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:18,897 INFO L82 PathProgramCache]: Analyzing trace with hash -183241630, now seen corresponding path program 1 times [2019-10-07 15:00:18,897 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:18,897 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:18,897 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:18,897 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:18,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:19,194 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:00:19,194 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:19,195 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:19,195 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:00:19,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:00:19,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:00:19,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:00:19,197 INFO L87 Difference]: Start difference. First operand 687 states and 813 transitions. Second operand 12 states. [2019-10-07 15:00:21,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:21,488 INFO L93 Difference]: Finished difference Result 1521 states and 1768 transitions. [2019-10-07 15:00:21,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:00:21,489 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 149 [2019-10-07 15:00:21,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:21,496 INFO L225 Difference]: With dead ends: 1521 [2019-10-07 15:00:21,496 INFO L226 Difference]: Without dead ends: 1116 [2019-10-07 15:00:21,499 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-07 15:00:21,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2019-10-07 15:00:21,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1046. [2019-10-07 15:00:21,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1046 states. [2019-10-07 15:00:21,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1224 transitions. [2019-10-07 15:00:21,566 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1224 transitions. Word has length 149 [2019-10-07 15:00:21,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:21,567 INFO L462 AbstractCegarLoop]: Abstraction has 1046 states and 1224 transitions. [2019-10-07 15:00:21,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:00:21,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1224 transitions. [2019-10-07 15:00:21,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-07 15:00:21,571 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:21,571 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:21,572 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:21,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:21,572 INFO L82 PathProgramCache]: Analyzing trace with hash -52833044, now seen corresponding path program 1 times [2019-10-07 15:00:21,572 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:21,573 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:21,573 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:21,573 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:21,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:21,761 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:21,762 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:21,762 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:21,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:21,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:21,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:21,763 INFO L87 Difference]: Start difference. First operand 1046 states and 1224 transitions. Second operand 3 states. [2019-10-07 15:00:21,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:21,827 INFO L93 Difference]: Finished difference Result 2146 states and 2581 transitions. [2019-10-07 15:00:21,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:21,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-07 15:00:21,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:21,835 INFO L225 Difference]: With dead ends: 2146 [2019-10-07 15:00:21,836 INFO L226 Difference]: Without dead ends: 1158 [2019-10-07 15:00:21,839 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 15:00:21,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2019-10-07 15:00:21,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1156. [2019-10-07 15:00:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1156 states. [2019-10-07 15:00:21,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1415 transitions. [2019-10-07 15:00:21,907 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1415 transitions. Word has length 171 [2019-10-07 15:00:21,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:21,908 INFO L462 AbstractCegarLoop]: Abstraction has 1156 states and 1415 transitions. [2019-10-07 15:00:21,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:21,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1415 transitions. [2019-10-07 15:00:21,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-07 15:00:21,913 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:21,913 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] [2019-10-07 15:00:21,913 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:21,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:21,914 INFO L82 PathProgramCache]: Analyzing trace with hash 2008380414, now seen corresponding path program 1 times [2019-10-07 15:00:21,914 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:21,914 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:21,914 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:21,914 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:21,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 15:00:22,051 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:22,052 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:22,052 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:22,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:22,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:22,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:22,053 INFO L87 Difference]: Start difference. First operand 1156 states and 1415 transitions. Second operand 3 states. [2019-10-07 15:00:22,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:22,124 INFO L93 Difference]: Finished difference Result 2461 states and 3130 transitions. [2019-10-07 15:00:22,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:22,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-07 15:00:22,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:22,133 INFO L225 Difference]: With dead ends: 2461 [2019-10-07 15:00:22,133 INFO L226 Difference]: Without dead ends: 1363 [2019-10-07 15:00:22,137 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 15:00:22,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2019-10-07 15:00:22,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1361. [2019-10-07 15:00:22,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2019-10-07 15:00:22,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1770 transitions. [2019-10-07 15:00:22,214 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1770 transitions. Word has length 177 [2019-10-07 15:00:22,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:22,215 INFO L462 AbstractCegarLoop]: Abstraction has 1361 states and 1770 transitions. [2019-10-07 15:00:22,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:22,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1770 transitions. [2019-10-07 15:00:22,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-07 15:00:22,220 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:22,220 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:22,221 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:22,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:22,221 INFO L82 PathProgramCache]: Analyzing trace with hash -385167538, now seen corresponding path program 1 times [2019-10-07 15:00:22,221 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:22,221 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:22,222 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:22,222 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:22,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:22,645 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:22,646 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:22,646 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:00:22,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:00:22,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:00:22,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:00:22,648 INFO L87 Difference]: Start difference. First operand 1361 states and 1770 transitions. Second operand 12 states. [2019-10-07 15:00:26,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:26,736 INFO L93 Difference]: Finished difference Result 3094 states and 4152 transitions. [2019-10-07 15:00:26,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:00:26,737 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 173 [2019-10-07 15:00:26,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:26,751 INFO L225 Difference]: With dead ends: 3094 [2019-10-07 15:00:26,751 INFO L226 Difference]: Without dead ends: 2237 [2019-10-07 15:00:26,755 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:00:26,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2019-10-07 15:00:26,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 1755. [2019-10-07 15:00:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1755 states. [2019-10-07 15:00:26,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2463 transitions. [2019-10-07 15:00:26,887 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2463 transitions. Word has length 173 [2019-10-07 15:00:26,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:26,887 INFO L462 AbstractCegarLoop]: Abstraction has 1755 states and 2463 transitions. [2019-10-07 15:00:26,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:00:26,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2463 transitions. [2019-10-07 15:00:26,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 15:00:26,896 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:26,896 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] [2019-10-07 15:00:26,897 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:26,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:26,897 INFO L82 PathProgramCache]: Analyzing trace with hash -25078191, now seen corresponding path program 1 times [2019-10-07 15:00:26,897 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:26,897 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:26,898 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:26,898 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 15:00:27,035 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:27,035 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:27,035 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:27,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:27,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:27,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:27,037 INFO L87 Difference]: Start difference. First operand 1755 states and 2463 transitions. Second operand 3 states. [2019-10-07 15:00:27,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:27,148 INFO L93 Difference]: Finished difference Result 3733 states and 5382 transitions. [2019-10-07 15:00:27,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:27,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-07 15:00:27,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:27,167 INFO L225 Difference]: With dead ends: 3733 [2019-10-07 15:00:27,167 INFO L226 Difference]: Without dead ends: 2040 [2019-10-07 15:00:27,175 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 15:00:27,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2019-10-07 15:00:27,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 2039. [2019-10-07 15:00:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2039 states. [2019-10-07 15:00:27,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2963 transitions. [2019-10-07 15:00:27,335 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2963 transitions. Word has length 179 [2019-10-07 15:00:27,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:27,337 INFO L462 AbstractCegarLoop]: Abstraction has 2039 states and 2963 transitions. [2019-10-07 15:00:27,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:27,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2963 transitions. [2019-10-07 15:00:27,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-07 15:00:27,423 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:27,424 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:27,424 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:27,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:27,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1895014891, now seen corresponding path program 1 times [2019-10-07 15:00:27,425 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:27,426 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:27,426 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:27,426 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:27,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:27,856 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:00:27,856 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:27,857 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:27,857 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:00:27,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:00:27,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:00:27,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:00:27,859 INFO L87 Difference]: Start difference. First operand 2039 states and 2963 transitions. Second operand 12 states. [2019-10-07 15:00:32,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:32,170 INFO L93 Difference]: Finished difference Result 3899 states and 5562 transitions. [2019-10-07 15:00:32,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:00:32,171 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 182 [2019-10-07 15:00:32,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:32,185 INFO L225 Difference]: With dead ends: 3899 [2019-10-07 15:00:32,186 INFO L226 Difference]: Without dead ends: 2368 [2019-10-07 15:00:32,194 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:00:32,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2019-10-07 15:00:32,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 1886. [2019-10-07 15:00:32,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1886 states. [2019-10-07 15:00:32,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2682 transitions. [2019-10-07 15:00:32,316 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2682 transitions. Word has length 182 [2019-10-07 15:00:32,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:32,318 INFO L462 AbstractCegarLoop]: Abstraction has 1886 states and 2682 transitions. [2019-10-07 15:00:32,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:00:32,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2682 transitions. [2019-10-07 15:00:32,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-07 15:00:32,326 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:32,327 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:32,327 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:32,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:32,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1992074431, now seen corresponding path program 1 times [2019-10-07 15:00:32,328 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:32,328 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:32,328 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:32,328 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:32,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 15:00:33,199 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:33,199 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:00:33,199 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 15:00:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:33,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 2707 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:00:33,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:00:33,930 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:33,930 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:00:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:34,211 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:00:34,246 INFO L162 IcfgInterpreter]: Started Sifa with 162 locations of interest [2019-10-07 15:00:34,246 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:00:34,253 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:00:34,260 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:00:34,261 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:01:22,402 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:01:26,494 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 316 DAG size of output: 257 [2019-10-07 15:01:26,894 WARN L191 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 719 [2019-10-07 15:01:27,339 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 719 [2019-10-07 15:01:27,631 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 719 [2019-10-07 15:01:27,823 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 15:01:28,481 WARN L191 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 15:01:29,092 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 15:01:29,724 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 15:01:29,855 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 15:01:30,472 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 15:01:31,790 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1018 DAG size of output: 1016 [2019-10-07 15:01:32,398 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 15:01:32,551 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 15:01:33,154 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 15:01:33,720 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 15:01:34,333 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 15:01:34,458 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 15:01:35,017 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 15:01:35,042 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 556 for LOIs [2019-10-07 15:01:35,476 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:01:35,681 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:01:35,802 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 15:01:36,230 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 941 [2019-10-07 15:01:36,231 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1053 for LOIs [2019-10-07 15:01:36,794 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:37,393 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:37,581 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:38,395 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:01:38,967 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:39,586 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:39,781 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:40,564 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:01:41,224 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:41,816 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:42,019 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:42,834 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:01:44,007 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 1174 DAG size of output: 1053 [2019-10-07 15:01:44,576 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:44,970 WARN L191 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 566 [2019-10-07 15:01:45,789 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:01:46,374 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:46,950 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:47,139 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:47,936 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:01:48,512 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:49,107 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:49,337 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:50,149 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:01:50,722 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:51,295 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:51,487 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:52,293 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:01:52,882 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:53,468 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:53,655 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:54,470 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:01:55,061 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:55,644 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:55,834 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:56,649 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:01:57,228 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:57,807 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:57,999 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:58,811 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:01:59,388 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:01:59,978 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:02:00,176 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:00,983 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:01,557 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:02:02,131 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:02:02,322 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:03,136 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:03,722 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:02:04,305 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 1053 [2019-10-07 15:02:04,495 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:05,319 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:06,191 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:06,993 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:07,197 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:08,002 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:09,566 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1174 DAG size of output: 1172 [2019-10-07 15:02:10,388 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:10,587 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:11,392 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:12,205 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:13,016 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:13,205 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:14,008 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:14,898 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:15,722 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:15,916 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:16,724 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:18,129 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1178 DAG size of output: 1174 [2019-10-07 15:02:18,937 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1174 [2019-10-07 15:02:19,135 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:19,949 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:21,352 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1178 DAG size of output: 1174 [2019-10-07 15:02:22,170 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1174 [2019-10-07 15:02:22,362 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:23,179 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:24,007 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1174 [2019-10-07 15:02:24,823 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1174 [2019-10-07 15:02:25,065 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:25,887 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:26,703 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:27,518 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:27,711 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:28,522 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:02:30,711 WARN L191 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 1174 DAG size of output: 1172 [2019-10-07 15:02:31,532 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:31,733 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:32,531 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:34,000 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1174 DAG size of output: 1172 [2019-10-07 15:02:34,806 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:35,012 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:35,822 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:36,640 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:37,455 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:37,651 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:38,467 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:40,283 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1174 DAG size of output: 1172 [2019-10-07 15:02:41,105 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:41,301 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:42,108 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:43,578 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1174 DAG size of output: 1172 [2019-10-07 15:02:44,397 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:44,592 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:45,406 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:46,230 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:47,051 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:47,240 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:48,054 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 15:02:49,606 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1178 DAG size of output: 1176 [2019-10-07 15:02:50,425 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:50,625 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:51,447 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:52,844 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1178 DAG size of output: 1174 [2019-10-07 15:02:53,656 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1174 [2019-10-07 15:02:53,852 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:54,662 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:56,040 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1178 DAG size of output: 1174 [2019-10-07 15:02:56,859 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1174 [2019-10-07 15:02:57,050 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:57,868 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:59,264 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1183 DAG size of output: 1176 [2019-10-07 15:03:00,082 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:03:00,284 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:03:01,104 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:03:02,506 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1185 DAG size of output: 1178 [2019-10-07 15:03:03,316 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:03:03,514 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:03:04,336 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:03:04,595 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:03:04,597 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 15:03:04,603 INFO L168 Benchmark]: Toolchain (without parser) took 180679.95 ms. Allocated memory was 144.7 MB in the beginning and 693.1 MB in the end (delta: 548.4 MB). Free memory was 100.2 MB in the beginning and 461.8 MB in the end (delta: -361.6 MB). Peak memory consumption was 186.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:04,603 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:03:04,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1203.47 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 99.7 MB in the beginning and 136.8 MB in the end (delta: -37.0 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:04,605 INFO L168 Benchmark]: Boogie Preprocessor took 174.84 ms. Allocated memory is still 200.8 MB. Free memory was 136.8 MB in the beginning and 127.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:04,606 INFO L168 Benchmark]: RCFGBuilder took 4971.07 ms. Allocated memory was 200.8 MB in the beginning and 299.4 MB in the end (delta: 98.6 MB). Free memory was 127.7 MB in the beginning and 109.6 MB in the end (delta: 18.1 MB). Peak memory consumption was 116.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:04,606 INFO L168 Benchmark]: TraceAbstraction took 174326.02 ms. Allocated memory was 299.4 MB in the beginning and 693.1 MB in the end (delta: 393.7 MB). Free memory was 109.6 MB in the beginning and 461.8 MB in the end (delta: -352.2 MB). Peak memory consumption was 41.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:03:04,610 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1203.47 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 99.7 MB in the beginning and 136.8 MB in the end (delta: -37.0 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 174.84 ms. Allocated memory is still 200.8 MB. Free memory was 136.8 MB in the beginning and 127.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4971.07 ms. Allocated memory was 200.8 MB in the beginning and 299.4 MB in the end (delta: 98.6 MB). Free memory was 127.7 MB in the beginning and 109.6 MB in the end (delta: 18.1 MB). Peak memory consumption was 116.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 174326.02 ms. Allocated memory was 299.4 MB in the beginning and 693.1 MB in the end (delta: 393.7 MB). Free memory was 109.6 MB in the beginning and 461.8 MB in the end (delta: -352.2 MB). Peak memory consumption was 41.5 MB. 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...