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_spec8_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:07:20,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:07:20,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:07:20,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:07:20,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:07:20,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:07:20,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:07:20,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:07:20,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:07:20,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:07:20,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:07:20,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:07:20,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:07:20,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:07:20,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:07:20,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:07:20,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:07:20,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:07:20,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:07:20,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:07:20,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:07:20,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:07:20,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:07:20,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:07:20,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:07:20,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:07:20,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:07:20,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:07:20,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:07:20,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:07:20,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:07:20,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:07:20,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:07:20,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:07:20,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:07:20,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:07:20,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:07:20,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:07:20,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:07:20,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:07:20,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:07:20,808 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 15:07:20,832 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:07:20,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:07:20,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:07:20,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:07:20,835 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:07:20,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:07:20,836 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:07:20,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:07:20,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:07:20,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:07:20,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:07:20,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:07:20,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:07:20,838 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:07:20,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:07:20,839 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:07:20,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:07:20,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:07:20,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:07:20,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:07:20,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:07:20,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:07:20,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:07:20,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:07:20,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:07:20,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:07:20,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:07:20,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:07:20,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:07:21,119 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:07:21,132 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:07:21,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:07:21,137 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:07:21,138 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:07:21,138 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product22.cil.c [2019-10-07 15:07:21,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3c71ad7/7f5cf8d7b22c4ae286530bcfe48ca016/FLAGe295bbd5f [2019-10-07 15:07:21,848 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:07:21,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product22.cil.c [2019-10-07 15:07:21,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3c71ad7/7f5cf8d7b22c4ae286530bcfe48ca016/FLAGe295bbd5f [2019-10-07 15:07:22,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce3c71ad7/7f5cf8d7b22c4ae286530bcfe48ca016 [2019-10-07 15:07:22,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:07:22,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:07:22,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:07:22,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:07:22,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:07:22,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:07:22" (1/1) ... [2019-10-07 15:07:22,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51752872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:22, skipping insertion in model container [2019-10-07 15:07:22,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:07:22" (1/1) ... [2019-10-07 15:07:22,131 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:07:22,201 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:07:23,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:07:23,030 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:07:23,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:07:23,235 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:07:23,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:23 WrapperNode [2019-10-07 15:07:23,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:07:23,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:07:23,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:07:23,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:07:23,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:23" (1/1) ... [2019-10-07 15:07:23,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:23" (1/1) ... [2019-10-07 15:07:23,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:23" (1/1) ... [2019-10-07 15:07:23,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:23" (1/1) ... [2019-10-07 15:07:23,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:23" (1/1) ... [2019-10-07 15:07:23,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:23" (1/1) ... [2019-10-07 15:07:23,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:23" (1/1) ... [2019-10-07 15:07:23,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:07:23,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:07:23,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:07:23,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:07:23,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:07:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:07:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:07:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:07:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:07:23,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:07:23,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:07:23,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:07:23,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:07:23,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:07:23,519 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:07:23,519 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:07:23,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:07:23,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:07:23,521 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:07:23,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:07:23,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:07:23,524 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:07:23,525 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:07:23,525 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:07:23,525 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:07:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:07:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:07:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:07:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 15:07:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:07:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:07:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:07:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:07:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:07:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:07:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:07:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:07:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:07:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:07:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:07:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:07:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:07:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:07:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:07:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:07:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:07:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:07:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:07:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:07:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:07:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:07:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:07:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:07:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:07:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:07:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:07:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:07:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:07:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:07:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:07:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:07:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:07:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:07:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:07:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-07 15:07:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 15:07:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:07:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:07:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:07:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:07:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:07:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:07:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:07:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:07:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:07:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:07:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 15:07:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:07:23,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:07:23,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:07:23,541 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:07:23,541 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:07:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:07:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:07:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:07:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:07:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:07:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:07:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:07:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:07:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:07:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:07:23,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:07:23,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:07:23,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:07:23,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:07:23,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:07:23,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:07:23,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:07:23,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:07:23,547 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:07:23,547 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:07:23,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:07:23,547 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:07:23,547 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:07:23,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:07:23,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:07:23,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:07:23,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:07:23,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:07:23,549 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:07:23,549 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:07:23,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:07:23,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:07:23,549 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:07:23,549 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:07:23,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:07:23,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:07:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:07:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:07:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:07:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:07:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:07:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:07:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:07:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:07:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:07:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:07:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:07:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:07:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:07:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:07:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:07:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:07:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:07:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:07:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:07:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:07:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:07:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:07:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:07:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:07:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:07:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:07:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:07:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:07:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:07:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:07:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:07:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:07:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:07:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:07:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:07:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:07:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:07:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:07:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:07:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:07:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 15:07:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:07:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:07:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:07:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:07:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:07:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:07:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:07:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:07:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:07:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:07:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:07:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:07:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:07:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:07:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:07:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:07:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:07:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:07:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:07:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:07:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:07:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:07:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:07:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:07:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:07:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:07:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:07:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:07:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:07:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:07:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:07:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:07:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:07:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:07:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:07:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:07:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:07:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:07:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:07:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:07:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:07:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:07:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:07:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:07:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:07:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:07:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:07:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:07:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:07:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:07:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:07:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:07:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:07:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:07:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:07:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:07:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:07:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:07:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 15:07:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:07:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:07:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:07:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-07 15:07:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 15:07:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:07:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:07:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:07:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:07:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:07:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:07:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:07:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:07:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:07:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:07:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:07:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:07:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:07:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:07:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:07:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:07:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:07:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:07:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:07:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:07:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:07:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:07:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:07:28,251 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:07:28,251 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:07:28,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:28 BoogieIcfgContainer [2019-10-07 15:07:28,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:07:28,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:07:28,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:07:28,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:07:28,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:07:22" (1/3) ... [2019-10-07 15:07:28,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcaf4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:28, skipping insertion in model container [2019-10-07 15:07:28,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:23" (2/3) ... [2019-10-07 15:07:28,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcaf4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:28, skipping insertion in model container [2019-10-07 15:07:28,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:28" (3/3) ... [2019-10-07 15:07:28,261 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product22.cil.c [2019-10-07 15:07:28,271 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:07:28,283 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:07:28,296 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:07:28,337 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:07:28,337 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:07:28,337 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:07:28,337 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:07:28,337 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:07:28,337 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:07:28,338 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:07:28,338 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:07:28,362 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states. [2019-10-07 15:07:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-07 15:07:28,377 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:28,379 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:07:28,381 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:28,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:28,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1071058540, now seen corresponding path program 1 times [2019-10-07 15:07:28,396 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:28,396 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:28,397 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:28,397 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:29,056 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:07:29,057 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:29,058 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:29,058 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:07:29,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:07:29,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:07:29,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:07:29,082 INFO L87 Difference]: Start difference. First operand 375 states. Second operand 2 states. [2019-10-07 15:07:29,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:29,166 INFO L93 Difference]: Finished difference Result 551 states and 650 transitions. [2019-10-07 15:07:29,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:07:29,168 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-07 15:07:29,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:29,188 INFO L225 Difference]: With dead ends: 551 [2019-10-07 15:07:29,188 INFO L226 Difference]: Without dead ends: 354 [2019-10-07 15:07:29,194 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:07:29,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2019-10-07 15:07:29,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2019-10-07 15:07:29,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-07 15:07:29,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 417 transitions. [2019-10-07 15:07:29,273 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 417 transitions. Word has length 114 [2019-10-07 15:07:29,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:29,276 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 417 transitions. [2019-10-07 15:07:29,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:07:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 417 transitions. [2019-10-07 15:07:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-07 15:07:29,283 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:29,283 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:07:29,284 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:29,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:29,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1986530798, now seen corresponding path program 1 times [2019-10-07 15:07:29,285 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:29,285 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:29,285 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:29,285 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:29,487 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:07:29,487 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:29,487 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:29,488 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:29,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:29,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:29,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:29,495 INFO L87 Difference]: Start difference. First operand 354 states and 417 transitions. Second operand 3 states. [2019-10-07 15:07:29,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:29,557 INFO L93 Difference]: Finished difference Result 536 states and 622 transitions. [2019-10-07 15:07:29,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:29,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-07 15:07:29,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:29,565 INFO L225 Difference]: With dead ends: 536 [2019-10-07 15:07:29,565 INFO L226 Difference]: Without dead ends: 356 [2019-10-07 15:07:29,568 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:29,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-07 15:07:29,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-10-07 15:07:29,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-07 15:07:29,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 419 transitions. [2019-10-07 15:07:29,600 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 419 transitions. Word has length 115 [2019-10-07 15:07:29,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:29,601 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 419 transitions. [2019-10-07 15:07:29,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:29,601 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 419 transitions. [2019-10-07 15:07:29,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-07 15:07:29,604 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:29,604 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:07:29,605 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:29,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:29,605 INFO L82 PathProgramCache]: Analyzing trace with hash 652216192, now seen corresponding path program 1 times [2019-10-07 15:07:29,606 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:29,606 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:29,606 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:29,606 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:29,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:07:29,801 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:29,801 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:29,801 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:29,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:29,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:29,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:29,803 INFO L87 Difference]: Start difference. First operand 356 states and 419 transitions. Second operand 3 states. [2019-10-07 15:07:29,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:29,855 INFO L93 Difference]: Finished difference Result 696 states and 848 transitions. [2019-10-07 15:07:29,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:29,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-07 15:07:29,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:29,863 INFO L225 Difference]: With dead ends: 696 [2019-10-07 15:07:29,863 INFO L226 Difference]: Without dead ends: 398 [2019-10-07 15:07:29,867 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:29,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-10-07 15:07:29,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 397. [2019-10-07 15:07:29,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-07 15:07:29,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 490 transitions. [2019-10-07 15:07:29,918 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 490 transitions. Word has length 127 [2019-10-07 15:07:29,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:29,919 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 490 transitions. [2019-10-07 15:07:29,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:29,920 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 490 transitions. [2019-10-07 15:07:29,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 15:07:29,924 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:29,925 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:07:29,925 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:29,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:29,925 INFO L82 PathProgramCache]: Analyzing trace with hash -846358647, now seen corresponding path program 1 times [2019-10-07 15:07:29,926 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:29,926 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:29,930 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:29,930 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:29,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:30,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:07:30,256 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:30,256 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:30,256 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:30,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:30,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:30,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:30,258 INFO L87 Difference]: Start difference. First operand 397 states and 490 transitions. Second operand 3 states. [2019-10-07 15:07:30,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:30,314 INFO L93 Difference]: Finished difference Result 610 states and 733 transitions. [2019-10-07 15:07:30,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:30,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-07 15:07:30,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:30,324 INFO L225 Difference]: With dead ends: 610 [2019-10-07 15:07:30,325 INFO L226 Difference]: Without dead ends: 431 [2019-10-07 15:07:30,326 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:30,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-07 15:07:30,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2019-10-07 15:07:30,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-10-07 15:07:30,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 522 transitions. [2019-10-07 15:07:30,376 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 522 transitions. Word has length 128 [2019-10-07 15:07:30,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:30,378 INFO L462 AbstractCegarLoop]: Abstraction has 431 states and 522 transitions. [2019-10-07 15:07:30,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:30,379 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 522 transitions. [2019-10-07 15:07:30,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-07 15:07:30,396 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:30,397 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:07:30,397 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:30,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:30,398 INFO L82 PathProgramCache]: Analyzing trace with hash -911134715, now seen corresponding path program 1 times [2019-10-07 15:07:30,398 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:30,399 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:30,399 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:30,399 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:30,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-07 15:07:30,836 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:30,836 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:30,836 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 15:07:30,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 15:07:30,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 15:07:30,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 15:07:30,839 INFO L87 Difference]: Start difference. First operand 431 states and 522 transitions. Second operand 11 states. [2019-10-07 15:07:33,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:33,325 INFO L93 Difference]: Finished difference Result 555 states and 648 transitions. [2019-10-07 15:07:33,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 15:07:33,326 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2019-10-07 15:07:33,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:33,331 INFO L225 Difference]: With dead ends: 555 [2019-10-07 15:07:33,331 INFO L226 Difference]: Without dead ends: 487 [2019-10-07 15:07:33,332 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 15:07:33,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2019-10-07 15:07:33,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 485. [2019-10-07 15:07:33,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-10-07 15:07:33,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 576 transitions. [2019-10-07 15:07:33,358 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 576 transitions. Word has length 222 [2019-10-07 15:07:33,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:33,359 INFO L462 AbstractCegarLoop]: Abstraction has 485 states and 576 transitions. [2019-10-07 15:07:33,359 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 15:07:33,360 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 576 transitions. [2019-10-07 15:07:33,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-07 15:07:33,414 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:33,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:07:33,415 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:33,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:33,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1841568789, now seen corresponding path program 1 times [2019-10-07 15:07:33,416 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:33,416 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:33,416 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:33,416 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:33,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:34,011 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-07 15:07:34,012 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:34,012 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:07:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:07:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:34,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:07:34,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:07:34,874 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-07 15:07:34,874 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:07:35,426 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-07 15:07:35,427 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:07:35,458 INFO L162 IcfgInterpreter]: Started Sifa with 195 locations of interest [2019-10-07 15:07:35,458 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:07:35,465 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:07:35,473 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:07:35,473 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:08:28,749 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 689 [2019-10-07 15:08:33,033 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 301 DAG size of output: 245 [2019-10-07 15:08:33,490 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2019-10-07 15:08:33,940 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2019-10-07 15:08:34,362 WARN L191 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2019-10-07 15:08:34,684 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:08:35,490 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:08:36,173 WARN L191 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:08:36,846 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:08:37,001 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:08:37,647 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:08:38,952 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1026 DAG size of output: 1024 [2019-10-07 15:08:39,587 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:08:39,744 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:08:40,380 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:08:40,976 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:08:41,589 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:08:41,710 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:08:42,298 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:08:42,323 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 562 for LOIs [2019-10-07 15:08:42,743 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 655 [2019-10-07 15:08:42,882 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 655 [2019-10-07 15:08:43,012 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:08:43,467 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 953 [2019-10-07 15:08:43,469 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1064 for LOIs [2019-10-07 15:08:44,048 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:44,670 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:44,876 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:08:45,749 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:08:46,339 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:46,926 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:47,150 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:08:47,981 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:08:48,699 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:49,287 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:49,534 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:08:50,372 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:08:51,479 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1194 DAG size of output: 1064 [2019-10-07 15:08:52,091 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:52,476 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:08:53,287 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:08:53,883 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:54,466 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:54,693 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:08:55,542 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:08:56,119 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:56,694 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:56,916 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:08:57,748 WARN L191 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:08:58,332 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:58,908 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:08:59,126 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:08:59,970 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:00,543 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:01,126 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:01,319 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:02,145 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:02,735 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:03,314 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:03,510 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:04,332 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:04,908 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:05,488 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:05,681 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:06,509 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:07,084 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:07,663 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:07,857 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:08,678 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:09,260 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:09,839 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:10,037 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:10,866 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:11,444 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:12,017 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 15:09:12,211 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:13,029 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:13,921 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:14,747 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:14,945 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:15,772 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:17,299 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1194 DAG size of output: 1192 [2019-10-07 15:09:18,120 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:18,333 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:19,153 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:19,979 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:20,809 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:21,003 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:21,824 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:22,709 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-07 15:09:23,543 WARN L191 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-07 15:09:23,745 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:09:24,560 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:09:25,813 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1198 DAG size of output: 1194 [2019-10-07 15:09:26,625 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-07 15:09:26,832 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:09:27,652 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:09:28,471 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-07 15:09:29,296 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-07 15:09:29,492 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:09:30,308 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:09:31,148 WARN L191 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-07 15:09:31,969 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-07 15:09:32,170 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:09:32,979 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:09:33,791 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:09:34,598 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:09:34,799 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:09:35,612 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1198 [2019-10-07 15:09:38,069 WARN L191 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 1194 DAG size of output: 1192 [2019-10-07 15:09:38,885 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:39,094 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:39,913 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:41,768 WARN L191 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 1194 DAG size of output: 1192 [2019-10-07 15:09:42,583 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:42,799 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:43,615 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:44,435 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:45,265 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:45,458 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:46,288 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:48,580 WARN L191 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 1194 DAG size of output: 1192 [2019-10-07 15:09:49,402 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:49,602 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:50,429 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:51,941 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1194 DAG size of output: 1192 [2019-10-07 15:09:52,773 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:52,979 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:53,803 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:54,623 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:55,443 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:55,636 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:09:56,467 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:09:57,314 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:09:58,130 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:09:58,338 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:09:59,150 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:10:00,634 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1198 DAG size of output: 1196 [2019-10-07 15:10:01,461 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:10:01,665 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:10:02,488 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:10:03,299 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:10:04,107 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:10:04,302 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:10:05,112 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:10:06,520 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1203 DAG size of output: 1196 [2019-10-07 15:10:07,333 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:10:07,569 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:10:08,381 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 15:10:09,851 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1205 DAG size of output: 1198 [2019-10-07 15:10:10,668 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1198 [2019-10-07 15:10:10,872 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:10:11,692 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1198 [2019-10-07 15:10:11,950 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:10:11,952 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 15:10:11,958 INFO L168 Benchmark]: Toolchain (without parser) took 169844.16 ms. Allocated memory was 137.4 MB in the beginning and 901.3 MB in the end (delta: 763.9 MB). Free memory was 98.9 MB in the beginning and 182.7 MB in the end (delta: -83.8 MB). Peak memory consumption was 680.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:10:11,958 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory is still 120.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 15:10:11,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1121.53 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.5 MB in the beginning and 137.4 MB in the end (delta: -38.9 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:10:11,959 INFO L168 Benchmark]: Boogie Preprocessor took 188.16 ms. Allocated memory is still 201.9 MB. Free memory was 137.4 MB in the beginning and 128.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:10:11,960 INFO L168 Benchmark]: RCFGBuilder took 4828.01 ms. Allocated memory was 201.9 MB in the beginning and 305.1 MB in the end (delta: 103.3 MB). Free memory was 128.3 MB in the beginning and 113.4 MB in the end (delta: 14.8 MB). Peak memory consumption was 118.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:10:11,961 INFO L168 Benchmark]: TraceAbstraction took 163701.62 ms. Allocated memory was 305.1 MB in the beginning and 901.3 MB in the end (delta: 596.1 MB). Free memory was 113.4 MB in the beginning and 182.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 526.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:10:11,964 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory is still 120.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1121.53 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.5 MB in the beginning and 137.4 MB in the end (delta: -38.9 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 188.16 ms. Allocated memory is still 201.9 MB. Free memory was 137.4 MB in the beginning and 128.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4828.01 ms. Allocated memory was 201.9 MB in the beginning and 305.1 MB in the end (delta: 103.3 MB). Free memory was 128.3 MB in the beginning and 113.4 MB in the end (delta: 14.8 MB). Peak memory consumption was 118.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 163701.62 ms. Allocated memory was 305.1 MB in the beginning and 901.3 MB in the end (delta: 596.1 MB). Free memory was 113.4 MB in the beginning and 182.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 526.9 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...