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_spec4_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:57:11,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:57:11,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:57:11,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:57:11,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:57:11,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:57:11,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:57:11,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:57:11,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:57:11,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:57:11,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:57:11,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:57:11,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:57:11,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:57:11,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:57:11,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:57:11,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:57:11,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:57:11,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:57:11,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:57:11,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:57:11,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:57:11,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:57:11,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:57:11,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:57:11,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:57:11,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:57:11,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:57:11,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:57:11,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:57:11,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:57:11,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:57:11,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:57:11,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:57:11,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:57:11,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:57:11,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:57:11,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:57:11,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:57:11,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:57:11,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:57:11,396 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:57:11,410 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:57:11,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:57:11,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:57:11,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:57:11,412 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:57:11,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:57:11,412 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:57:11,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:57:11,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:57:11,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:57:11,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:57:11,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:57:11,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:57:11,414 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:57:11,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:57:11,414 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:57:11,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:57:11,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:57:11,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:57:11,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:57:11,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:57:11,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:57:11,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:57:11,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:57:11,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:57:11,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:57:11,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:57:11,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:57:11,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:57:11,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:57:11,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:57:11,720 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:57:11,722 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:57:11,723 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:57:11,723 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2019-10-07 14:57:11,791 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54565eb70/bb1b74ea1b4b4cccb6c892f7cbbcd16c/FLAG98b40f14a [2019-10-07 14:57:12,303 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:57:12,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2019-10-07 14:57:12,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54565eb70/bb1b74ea1b4b4cccb6c892f7cbbcd16c/FLAG98b40f14a [2019-10-07 14:57:12,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54565eb70/bb1b74ea1b4b4cccb6c892f7cbbcd16c [2019-10-07 14:57:12,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:57:12,530 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:57:12,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:57:12,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:57:12,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:57:12,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:57:12" (1/1) ... [2019-10-07 14:57:12,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5184c565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:12, skipping insertion in model container [2019-10-07 14:57:12,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:57:12" (1/1) ... [2019-10-07 14:57:12,546 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:57:12,627 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:57:13,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:57:13,422 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:57:13,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:57:13,673 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:57:13,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:13 WrapperNode [2019-10-07 14:57:13,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:57:13,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:57:13,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:57:13,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:57:13,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:13" (1/1) ... [2019-10-07 14:57:13,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:13" (1/1) ... [2019-10-07 14:57:13,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:13" (1/1) ... [2019-10-07 14:57:13,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:13" (1/1) ... [2019-10-07 14:57:13,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:13" (1/1) ... [2019-10-07 14:57:13,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:13" (1/1) ... [2019-10-07 14:57:13,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:13" (1/1) ... [2019-10-07 14:57:13,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:57:13,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:57:13,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:57:13,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:57:13,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:57:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:57:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:57:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:57:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:57:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:57:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:57:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:57:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:57:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:57:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:57:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:57:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:57:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:57:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:57:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:57:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:57:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:57:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:57:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:57:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:57:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:57:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:57:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:57:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:57:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:57:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:57:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:57:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:57:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:57:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:57:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:57:13,992 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:57:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:57:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:57:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:57:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:57:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:57:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:57:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:57:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:57:13,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:57:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:57:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:57:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:57:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:57:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:57:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:57:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:57:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:57:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:57:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:57:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:57:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:57:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:57:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:57:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:57:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:57:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:57:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:57:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:57:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:57:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:57:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:57:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:57:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:57:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:57:13,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:57:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:57:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:57:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:57:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:57:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:57:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:57:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:57:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:57:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:57:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:57:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:57:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:57:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:57:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:57:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:57:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:57:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:57:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:57:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:57:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:57:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:57:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:57:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:57:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:57:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:57:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:57:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:57:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:57:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:57:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:57:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:57:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:57:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:57:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:57:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:57:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:57:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:57:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:57:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:57:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:57:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:57:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:57:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:57:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:57:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:57:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:57:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:57:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:57:14,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:57:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:57:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:57:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:57:14,006 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:57:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:57:14,007 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:57:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:57:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:57:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:57:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:57:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:57:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:57:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:57:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:57:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:57:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:57:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:57:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:57:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:57:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:57:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:57:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:57:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:57:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:57:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:57:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:57:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:57:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:57:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:57:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:57:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:57:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:57:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:57:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:57:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:57:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:57:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:57:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:57:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:57:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:57:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:57:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:57:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:57:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:57:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:57:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:57:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:57:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:57:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:57:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:57:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:57:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:57:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:57:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:57:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:57:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:57:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:57:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:57:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:57:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:57:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:57:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:57:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:57:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:57:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:57:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:57:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:57:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:57:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:57:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:57:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:57:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:57:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:57:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:57:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:57:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:57:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:57:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:57:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:57:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:57:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:57:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:57:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:57:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:57:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:57:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:57:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:57:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:57:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:57:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:57:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:57:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:57:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:57:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:57:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:57:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:57:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:57:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:57:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:57:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:57:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:57:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:57:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:57:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:57:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:57:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:57:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:57:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:57:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:57:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:57:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:57:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:57:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:57:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:57:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:57:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:57:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:57:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:57:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:57:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:57:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:57:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:57:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:57:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:57:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:57:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:57:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:57:18,177 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:57:18,177 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:57:18,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:57:18 BoogieIcfgContainer [2019-10-07 14:57:18,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:57:18,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:57:18,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:57:18,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:57:18,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:57:12" (1/3) ... [2019-10-07 14:57:18,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229eec4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:57:18, skipping insertion in model container [2019-10-07 14:57:18,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:13" (2/3) ... [2019-10-07 14:57:18,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229eec4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:57:18, skipping insertion in model container [2019-10-07 14:57:18,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:57:18" (3/3) ... [2019-10-07 14:57:18,190 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product25.cil.c [2019-10-07 14:57:18,200 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:57:18,210 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:57:18,221 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:57:18,258 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:57:18,259 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:57:18,261 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:57:18,263 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:57:18,263 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:57:18,264 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:57:18,264 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:57:18,264 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:57:18,301 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states. [2019-10-07 14:57:18,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 14:57:18,333 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:18,334 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] [2019-10-07 14:57:18,338 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:18,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:18,351 INFO L82 PathProgramCache]: Analyzing trace with hash -460999766, now seen corresponding path program 1 times [2019-10-07 14:57:18,361 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:18,361 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:18,364 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:18,364 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:18,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:19,016 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 14:57:19,017 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:19,018 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:19,018 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:57:19,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:57:19,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:57:19,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:57:19,039 INFO L87 Difference]: Start difference. First operand 404 states. Second operand 2 states. [2019-10-07 14:57:19,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:19,100 INFO L93 Difference]: Finished difference Result 590 states and 695 transitions. [2019-10-07 14:57:19,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:57:19,102 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-07 14:57:19,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:19,123 INFO L225 Difference]: With dead ends: 590 [2019-10-07 14:57:19,123 INFO L226 Difference]: Without dead ends: 377 [2019-10-07 14:57:19,134 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:57:19,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-07 14:57:19,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2019-10-07 14:57:19,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-10-07 14:57:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 442 transitions. [2019-10-07 14:57:19,232 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 442 transitions. Word has length 125 [2019-10-07 14:57:19,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:19,234 INFO L462 AbstractCegarLoop]: Abstraction has 377 states and 442 transitions. [2019-10-07 14:57:19,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:57:19,234 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 442 transitions. [2019-10-07 14:57:19,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-07 14:57:19,238 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:19,239 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] [2019-10-07 14:57:19,239 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:19,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:19,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1837542480, now seen corresponding path program 1 times [2019-10-07 14:57:19,240 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:19,240 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:19,241 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:19,241 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:19,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:19,504 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 14:57:19,505 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:19,505 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:19,505 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:57:19,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:57:19,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:57:19,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:19,514 INFO L87 Difference]: Start difference. First operand 377 states and 442 transitions. Second operand 3 states. [2019-10-07 14:57:19,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:19,564 INFO L93 Difference]: Finished difference Result 575 states and 664 transitions. [2019-10-07 14:57:19,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:57:19,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-07 14:57:19,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:19,569 INFO L225 Difference]: With dead ends: 575 [2019-10-07 14:57:19,569 INFO L226 Difference]: Without dead ends: 379 [2019-10-07 14:57:19,573 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:19,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-10-07 14:57:19,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-10-07 14:57:19,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-07 14:57:19,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 444 transitions. [2019-10-07 14:57:19,611 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 444 transitions. Word has length 126 [2019-10-07 14:57:19,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:19,611 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 444 transitions. [2019-10-07 14:57:19,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:57:19,612 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 444 transitions. [2019-10-07 14:57:19,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-07 14:57:19,615 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:19,615 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] [2019-10-07 14:57:19,615 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:19,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:19,616 INFO L82 PathProgramCache]: Analyzing trace with hash -330836873, now seen corresponding path program 1 times [2019-10-07 14:57:19,616 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:19,616 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:19,616 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:19,617 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:19,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:19,832 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 14:57:19,832 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:19,833 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:19,833 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:57:19,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:57:19,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:57:19,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:19,837 INFO L87 Difference]: Start difference. First operand 379 states and 444 transitions. Second operand 3 states. [2019-10-07 14:57:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:19,880 INFO L93 Difference]: Finished difference Result 742 states and 898 transitions. [2019-10-07 14:57:19,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:57:19,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-07 14:57:19,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:19,885 INFO L225 Difference]: With dead ends: 742 [2019-10-07 14:57:19,885 INFO L226 Difference]: Without dead ends: 421 [2019-10-07 14:57:19,888 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:19,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-10-07 14:57:19,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 420. [2019-10-07 14:57:19,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2019-10-07 14:57:19,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 515 transitions. [2019-10-07 14:57:19,931 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 515 transitions. Word has length 131 [2019-10-07 14:57:19,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:19,932 INFO L462 AbstractCegarLoop]: Abstraction has 420 states and 515 transitions. [2019-10-07 14:57:19,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:57:19,932 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 515 transitions. [2019-10-07 14:57:19,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 14:57:19,942 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:19,942 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] [2019-10-07 14:57:19,942 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:19,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:19,943 INFO L82 PathProgramCache]: Analyzing trace with hash 844763331, now seen corresponding path program 1 times [2019-10-07 14:57:19,943 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:19,943 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:19,944 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:19,944 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:19,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:20,581 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 14:57:20,581 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:20,581 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:20,582 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-07 14:57:20,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:57:20,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:57:20,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:57:20,585 INFO L87 Difference]: Start difference. First operand 420 states and 515 transitions. Second operand 21 states. [2019-10-07 14:57:29,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:29,703 INFO L93 Difference]: Finished difference Result 838 states and 1000 transitions. [2019-10-07 14:57:29,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 14:57:29,706 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 132 [2019-10-07 14:57:29,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:29,710 INFO L225 Difference]: With dead ends: 838 [2019-10-07 14:57:29,711 INFO L226 Difference]: Without dead ends: 648 [2019-10-07 14:57:29,712 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-07 14:57:29,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2019-10-07 14:57:29,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 639. [2019-10-07 14:57:29,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2019-10-07 14:57:29,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 772 transitions. [2019-10-07 14:57:29,753 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 772 transitions. Word has length 132 [2019-10-07 14:57:29,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:29,754 INFO L462 AbstractCegarLoop]: Abstraction has 639 states and 772 transitions. [2019-10-07 14:57:29,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:57:29,754 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 772 transitions. [2019-10-07 14:57:29,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 14:57:29,757 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:29,758 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] [2019-10-07 14:57:29,758 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:29,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:29,758 INFO L82 PathProgramCache]: Analyzing trace with hash -995692034, now seen corresponding path program 1 times [2019-10-07 14:57:29,759 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:29,759 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:29,759 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:29,759 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:29,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:30,194 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 14:57:30,194 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:30,194 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:30,194 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:57:30,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:57:30,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:57:30,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:57:30,196 INFO L87 Difference]: Start difference. First operand 639 states and 772 transitions. Second operand 23 states. [2019-10-07 14:57:32,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:32,504 INFO L93 Difference]: Finished difference Result 717 states and 858 transitions. [2019-10-07 14:57:32,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-07 14:57:32,504 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 138 [2019-10-07 14:57:32,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:32,515 INFO L225 Difference]: With dead ends: 717 [2019-10-07 14:57:32,516 INFO L226 Difference]: Without dead ends: 710 [2019-10-07 14:57:32,517 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-07 14:57:32,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2019-10-07 14:57:32,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 703. [2019-10-07 14:57:32,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2019-10-07 14:57:32,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 843 transitions. [2019-10-07 14:57:32,575 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 843 transitions. Word has length 138 [2019-10-07 14:57:32,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:32,576 INFO L462 AbstractCegarLoop]: Abstraction has 703 states and 843 transitions. [2019-10-07 14:57:32,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:57:32,576 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 843 transitions. [2019-10-07 14:57:32,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-07 14:57:32,581 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:32,581 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 14:57:32,582 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:32,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:32,582 INFO L82 PathProgramCache]: Analyzing trace with hash 860631089, now seen corresponding path program 1 times [2019-10-07 14:57:32,582 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:32,583 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:32,583 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:32,583 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:32,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-07 14:57:32,804 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:32,804 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:32,805 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:57:32,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:57:32,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:57:32,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:57:32,806 INFO L87 Difference]: Start difference. First operand 703 states and 843 transitions. Second operand 8 states. [2019-10-07 14:57:32,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:32,860 INFO L93 Difference]: Finished difference Result 1136 states and 1345 transitions. [2019-10-07 14:57:32,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:57:32,860 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 227 [2019-10-07 14:57:32,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:32,866 INFO L225 Difference]: With dead ends: 1136 [2019-10-07 14:57:32,866 INFO L226 Difference]: Without dead ends: 703 [2019-10-07 14:57:32,868 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:57:32,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2019-10-07 14:57:32,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2019-10-07 14:57:32,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2019-10-07 14:57:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 841 transitions. [2019-10-07 14:57:32,910 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 841 transitions. Word has length 227 [2019-10-07 14:57:32,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:32,913 INFO L462 AbstractCegarLoop]: Abstraction has 703 states and 841 transitions. [2019-10-07 14:57:32,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:57:32,913 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 841 transitions. [2019-10-07 14:57:32,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-07 14:57:32,917 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:32,918 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:32,918 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:32,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:32,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1698649821, now seen corresponding path program 1 times [2019-10-07 14:57:32,919 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:32,919 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:32,919 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:32,919 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:32,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:33,214 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-07 14:57:33,215 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:33,215 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:33,215 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 14:57:33,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 14:57:33,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 14:57:33,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:57:33,218 INFO L87 Difference]: Start difference. First operand 703 states and 841 transitions. Second operand 11 states. [2019-10-07 14:57:36,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:36,098 INFO L93 Difference]: Finished difference Result 1371 states and 1586 transitions. [2019-10-07 14:57:36,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:57:36,099 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 232 [2019-10-07 14:57:36,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:36,109 INFO L225 Difference]: With dead ends: 1371 [2019-10-07 14:57:36,109 INFO L226 Difference]: Without dead ends: 1010 [2019-10-07 14:57:36,111 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:57:36,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2019-10-07 14:57:36,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 988. [2019-10-07 14:57:36,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2019-10-07 14:57:36,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1155 transitions. [2019-10-07 14:57:36,193 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1155 transitions. Word has length 232 [2019-10-07 14:57:36,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:36,194 INFO L462 AbstractCegarLoop]: Abstraction has 988 states and 1155 transitions. [2019-10-07 14:57:36,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 14:57:36,194 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1155 transitions. [2019-10-07 14:57:36,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2019-10-07 14:57:36,207 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:36,208 INFO L385 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:36,208 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:36,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:36,209 INFO L82 PathProgramCache]: Analyzing trace with hash 900258588, now seen corresponding path program 1 times [2019-10-07 14:57:36,209 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:36,209 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:36,209 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:36,209 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:36,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2019-10-07 14:57:36,708 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:36,709 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:57:36,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:57:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:37,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 3748 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:57:37,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:57:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2019-10-07 14:57:37,682 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:57:38,737 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-10-07 14:57:38,738 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:57:38,773 INFO L162 IcfgInterpreter]: Started Sifa with 237 locations of interest [2019-10-07 14:57:38,773 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:57:38,783 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:57:38,789 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:57:38,790 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:58:28,595 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 14:58:32,656 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 306 DAG size of output: 249 [2019-10-07 14:58:33,094 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 14:58:33,422 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 14:58:33,705 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 14:58:33,921 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:58:34,608 WARN L191 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:58:35,293 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:58:35,880 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:58:36,077 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:58:36,670 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:58:37,877 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 1011 DAG size of output: 1009 [2019-10-07 14:58:38,502 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:58:38,640 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:58:39,278 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:58:39,874 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:58:40,492 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:58:40,619 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:58:41,213 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:58:41,239 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 553 for LOIs [2019-10-07 14:58:41,530 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 14:58:41,769 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:58:42,245 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 936 [2019-10-07 14:58:42,246 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1065 for LOIs [2019-10-07 14:58:42,812 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:43,419 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:43,662 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:44,649 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:58:45,237 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:45,814 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:46,082 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:47,015 WARN L191 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:58:47,667 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:48,268 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:48,507 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:49,451 WARN L191 SmtUtils]: Spent 942.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:58:50,359 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 1255 DAG size of output: 1065 [2019-10-07 14:58:50,935 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:51,370 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:52,307 WARN L191 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:58:52,891 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:53,461 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:53,695 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:54,634 WARN L191 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:58:55,222 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:55,794 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:56,048 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:56,984 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:58:57,553 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:58,125 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:58:58,430 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:58:59,369 WARN L191 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:58:59,940 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:00,520 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:00,754 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:01,692 WARN L191 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:02,270 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:02,851 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:03,083 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:04,020 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:04,592 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:05,166 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:05,398 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:06,353 WARN L191 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:06,922 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:07,493 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:07,724 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:08,663 WARN L191 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:09,232 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:09,806 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:10,044 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:10,986 WARN L191 SmtUtils]: Spent 941.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:11,556 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:12,130 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1065 [2019-10-07 14:59:12,365 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:13,301 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:14,292 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:15,235 WARN L191 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:15,495 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:16,442 WARN L191 SmtUtils]: Spent 944.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:18,234 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1253 [2019-10-07 14:59:19,174 WARN L191 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:19,430 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:20,366 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:21,319 WARN L191 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:22,259 WARN L191 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:22,494 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:23,430 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:24,429 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:59:25,375 WARN L191 SmtUtils]: Spent 943.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:59:25,622 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:26,573 WARN L191 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:59:27,543 WARN L191 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:59:28,486 WARN L191 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:59:28,735 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:29,685 WARN L191 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:59:31,414 WARN L191 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1255 [2019-10-07 14:59:32,359 WARN L191 SmtUtils]: Spent 941.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:59:32,595 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:33,535 WARN L191 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:59:34,491 WARN L191 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:59:35,447 WARN L191 SmtUtils]: Spent 953.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:59:35,737 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:36,720 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:59:37,678 WARN L191 SmtUtils]: Spent 954.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:59:38,632 WARN L191 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:59:38,874 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:59:39,835 WARN L191 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:59:41,795 WARN L191 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1253 [2019-10-07 14:59:42,729 WARN L191 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:42,974 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:43,915 WARN L191 SmtUtils]: Spent 938.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:45,638 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1253 [2019-10-07 14:59:46,594 WARN L191 SmtUtils]: Spent 953.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:46,847 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:47,785 WARN L191 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:48,734 WARN L191 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:49,679 WARN L191 SmtUtils]: Spent 941.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:49,913 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:50,855 WARN L191 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:52,948 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1253 [2019-10-07 14:59:53,896 WARN L191 SmtUtils]: Spent 942.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:54,139 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:55,079 WARN L191 SmtUtils]: Spent 938.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:56,809 WARN L191 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1253 [2019-10-07 14:59:57,750 WARN L191 SmtUtils]: Spent 938.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:57,997 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:59:58,933 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:59:59,875 WARN L191 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 15:00:00,808 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 15:00:01,040 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 15:00:02,123 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 15:00:03,093 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 15:00:04,029 WARN L191 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 15:00:04,278 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 15:00:05,212 WARN L191 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 15:00:06,159 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 15:00:07,101 WARN L191 SmtUtils]: Spent 938.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 15:00:07,347 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 15:00:08,286 WARN L191 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 15:00:09,223 WARN L191 SmtUtils]: Spent 933.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 15:00:10,161 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 15:00:10,397 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 15:00:11,329 WARN L191 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 15:00:13,043 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1262 [2019-10-07 15:00:13,979 WARN L191 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 15:00:14,408 WARN L191 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 15:00:15,344 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 15:00:17,051 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 15:00:17,999 WARN L191 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 15:00:18,241 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 15:00:19,189 WARN L191 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 15:00:19,441 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:00:19,444 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 15:00:19,451 INFO L168 Benchmark]: Toolchain (without parser) took 186921.78 ms. Allocated memory was 137.9 MB in the beginning and 821.6 MB in the end (delta: 683.7 MB). Free memory was 99.1 MB in the beginning and 328.2 MB in the end (delta: -229.1 MB). Peak memory consumption was 454.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:19,452 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 15:00:19,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1142.92 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 98.9 MB in the beginning and 135.6 MB in the end (delta: -36.7 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:19,453 INFO L168 Benchmark]: Boogie Preprocessor took 235.65 ms. Allocated memory is still 201.3 MB. Free memory was 135.6 MB in the beginning and 127.0 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:19,454 INFO L168 Benchmark]: RCFGBuilder took 4270.50 ms. Allocated memory was 201.3 MB in the beginning and 302.0 MB in the end (delta: 100.7 MB). Free memory was 127.0 MB in the beginning and 102.2 MB in the end (delta: 24.8 MB). Peak memory consumption was 125.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:19,455 INFO L168 Benchmark]: TraceAbstraction took 181267.91 ms. Allocated memory was 302.0 MB in the beginning and 821.6 MB in the end (delta: 519.6 MB). Free memory was 102.2 MB in the beginning and 328.2 MB in the end (delta: -226.0 MB). Peak memory consumption was 293.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:19,458 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1142.92 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 98.9 MB in the beginning and 135.6 MB in the end (delta: -36.7 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 235.65 ms. Allocated memory is still 201.3 MB. Free memory was 135.6 MB in the beginning and 127.0 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4270.50 ms. Allocated memory was 201.3 MB in the beginning and 302.0 MB in the end (delta: 100.7 MB). Free memory was 127.0 MB in the beginning and 102.2 MB in the end (delta: 24.8 MB). Peak memory consumption was 125.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 181267.91 ms. Allocated memory was 302.0 MB in the beginning and 821.6 MB in the end (delta: 519.6 MB). Free memory was 102.2 MB in the beginning and 328.2 MB in the end (delta: -226.0 MB). Peak memory consumption was 293.5 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...