java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:56:38,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:56:38,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:56:38,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:56:38,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:56:38,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:56:38,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:56:38,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:56:38,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:56:38,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:56:38,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:56:38,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:56:38,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:56:38,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:56:38,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:56:38,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:56:38,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:56:38,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:56:38,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:56:38,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:56:38,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:56:38,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:56:38,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:56:38,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:56:38,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:56:38,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:56:38,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:56:38,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:56:38,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:56:38,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:56:38,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:56:38,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:56:38,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:56:38,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:56:38,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:56:38,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:56:38,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:56:38,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:56:38,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:56:38,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:56:38,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:56:38,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:56:38,640 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:56:38,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:56:38,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:56:38,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:56:38,642 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:56:38,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:56:38,642 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:56:38,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:56:38,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:56:38,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:56:38,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:56:38,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:56:38,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:56:38,644 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:56:38,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:56:38,644 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:56:38,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:56:38,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:56:38,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:56:38,645 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:56:38,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:56:38,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:56:38,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:56:38,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:56:38,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:56:38,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:56:38,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:56:38,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:56:38,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:56:38,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:56:38,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:56:38,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:56:38,919 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:56:38,920 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:56:38,920 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product19.cil.c [2019-10-07 14:56:38,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c055e50d/a395d742b1094a5784574f17f6b9c2a3/FLAG12d6e90bb [2019-10-07 14:56:39,595 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:56:39,595 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product19.cil.c [2019-10-07 14:56:39,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c055e50d/a395d742b1094a5784574f17f6b9c2a3/FLAG12d6e90bb [2019-10-07 14:56:39,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c055e50d/a395d742b1094a5784574f17f6b9c2a3 [2019-10-07 14:56:39,813 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:56:39,814 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:56:39,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:56:39,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:56:39,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:56:39,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:56:39" (1/1) ... [2019-10-07 14:56:39,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67df4a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:39, skipping insertion in model container [2019-10-07 14:56:39,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:56:39" (1/1) ... [2019-10-07 14:56:39,831 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:56:39,920 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:56:40,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:56:40,665 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:56:40,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:56:40,843 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:56:40,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:40 WrapperNode [2019-10-07 14:56:40,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:56:40,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:56:40,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:56:40,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:56:40,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:40" (1/1) ... [2019-10-07 14:56:40,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:40" (1/1) ... [2019-10-07 14:56:40,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:40" (1/1) ... [2019-10-07 14:56:40,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:40" (1/1) ... [2019-10-07 14:56:40,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:40" (1/1) ... [2019-10-07 14:56:41,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:40" (1/1) ... [2019-10-07 14:56:41,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:40" (1/1) ... [2019-10-07 14:56:41,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:56:41,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:56:41,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:56:41,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:56:41,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:56:41,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:56:41,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:56:41,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:56:41,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:56:41,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:56:41,118 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:56:41,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:56:41,120 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:56:41,120 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:56:41,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:56:41,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:56:41,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:56:41,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:56:41,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:56:41,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:56:41,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:56:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:56:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:56:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:56:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:56:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:56:41,126 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:56:41,126 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:56:41,126 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:56:41,126 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:56:41,126 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:56:41,127 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:56:41,127 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:56:41,127 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:56:41,127 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:56:41,127 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:56:41,128 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:56:41,128 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:56:41,128 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:56:41,129 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:56:41,129 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:56:41,129 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:56:41,129 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:56:41,129 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:56:41,130 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:56:41,130 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:56:41,130 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:56:41,130 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:56:41,130 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:56:41,130 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:56:41,131 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:56:41,131 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:56:41,131 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:56:41,131 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:56:41,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:56:41,131 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:56:41,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:56:41,132 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:56:41,132 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:56:41,132 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:56:41,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:56:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:56:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:56:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:56:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:56:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:56:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:56:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:56:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:56:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:56:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:56:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:56:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:56:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:56:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:56:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:56:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:56:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:56:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:56:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:56:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:56:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:56:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:56:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:56:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:56:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:56:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:56:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:56:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:56:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:56:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:56:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:56:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:56:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:56:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:56:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:56:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:56:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:56:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:56:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:56:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:56:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:56:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:56:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:56:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:56:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:56:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:56:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:56:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:56:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:56:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:56:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:56:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:56:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:56:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:56:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:56:41,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:56:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:56:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:56:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:56:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:56:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:56:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:56:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:56:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:56:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:56:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:56:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:56:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:56:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:56:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:56:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:56:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:56:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:56:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:56:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:56:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:56:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:56:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:56:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:56:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:56:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:56:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:56:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:56:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:56:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:56:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:56:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:56:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:56:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:56:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:56:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:56:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:56:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:56:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:56:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:56:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:56:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:56:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:56:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:56:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:56:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:56:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:56:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:56:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:56:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:56:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:56:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:56:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:56:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:56:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:56:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:56:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:56:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:56:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:56:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:56:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:56:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:56:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:56:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:56:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:56:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:56:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:56:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:56:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:56:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:56:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:56:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:56:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:56:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:56:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:56:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:56:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:56:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:56:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:56:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:56:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:56:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:56:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:56:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:56:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:56:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:56:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:56:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:56:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:56:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:56:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:56:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:56:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:56:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:56:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:56:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:56:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:56:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:56:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:56:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:56:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:56:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:56:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:56:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:56:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:56:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:56:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:56:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:56:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:56:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:56:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:56:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:56:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:56:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:56:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:56:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:56:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:56:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:56:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:56:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:56:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:56:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:56:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:56:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:56:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:56:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:56:45,201 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:56:45,201 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:56:45,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:56:45 BoogieIcfgContainer [2019-10-07 14:56:45,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:56:45,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:56:45,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:56:45,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:56:45,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:56:39" (1/3) ... [2019-10-07 14:56:45,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590417b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:56:45, skipping insertion in model container [2019-10-07 14:56:45,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:56:40" (2/3) ... [2019-10-07 14:56:45,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590417b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:56:45, skipping insertion in model container [2019-10-07 14:56:45,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:56:45" (3/3) ... [2019-10-07 14:56:45,212 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product19.cil.c [2019-10-07 14:56:45,221 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:56:45,230 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:56:45,241 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:56:45,276 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:56:45,276 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:56:45,276 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:56:45,277 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:56:45,277 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:56:45,277 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:56:45,277 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:56:45,278 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:56:45,308 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states. [2019-10-07 14:56:45,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:56:45,325 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:45,326 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] [2019-10-07 14:56:45,328 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:45,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:45,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1973730850, now seen corresponding path program 1 times [2019-10-07 14:56:45,343 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:45,343 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:45,343 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:45,343 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:45,985 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:56:45,985 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:45,986 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:45,986 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:56:45,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:56:46,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:56:46,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:56:46,007 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 2 states. [2019-10-07 14:56:46,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:46,067 INFO L93 Difference]: Finished difference Result 526 states and 613 transitions. [2019-10-07 14:56:46,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:56:46,069 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 118 [2019-10-07 14:56:46,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:46,087 INFO L225 Difference]: With dead ends: 526 [2019-10-07 14:56:46,087 INFO L226 Difference]: Without dead ends: 338 [2019-10-07 14:56:46,092 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:56:46,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-10-07 14:56:46,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2019-10-07 14:56:46,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2019-10-07 14:56:46,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 395 transitions. [2019-10-07 14:56:46,168 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 395 transitions. Word has length 118 [2019-10-07 14:56:46,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:46,170 INFO L462 AbstractCegarLoop]: Abstraction has 338 states and 395 transitions. [2019-10-07 14:56:46,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:56:46,171 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 395 transitions. [2019-10-07 14:56:46,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:56:46,175 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:46,175 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] [2019-10-07 14:56:46,175 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:46,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:46,176 INFO L82 PathProgramCache]: Analyzing trace with hash 80777011, now seen corresponding path program 1 times [2019-10-07 14:56:46,176 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:46,176 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:46,176 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:46,177 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:46,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:56:46,391 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:46,392 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:46,392 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:56:46,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:56:46,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:56:46,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:56:46,397 INFO L87 Difference]: Start difference. First operand 338 states and 395 transitions. Second operand 3 states. [2019-10-07 14:56:46,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:46,467 INFO L93 Difference]: Finished difference Result 511 states and 585 transitions. [2019-10-07 14:56:46,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:56:46,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-07 14:56:46,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:46,471 INFO L225 Difference]: With dead ends: 511 [2019-10-07 14:56:46,471 INFO L226 Difference]: Without dead ends: 340 [2019-10-07 14:56:46,476 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:56:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-10-07 14:56:46,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2019-10-07 14:56:46,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-10-07 14:56:46,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 397 transitions. [2019-10-07 14:56:46,512 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 397 transitions. Word has length 119 [2019-10-07 14:56:46,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:46,513 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 397 transitions. [2019-10-07 14:56:46,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:56:46,513 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 397 transitions. [2019-10-07 14:56:46,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-07 14:56:46,516 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:46,516 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:56:46,516 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:46,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:46,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1118901664, now seen corresponding path program 1 times [2019-10-07 14:56:46,517 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:46,517 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:46,517 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:46,518 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:46,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:56:46,661 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:46,661 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:46,661 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:56:46,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:56:46,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:56:46,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:56:46,664 INFO L87 Difference]: Start difference. First operand 340 states and 397 transitions. Second operand 3 states. [2019-10-07 14:56:46,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:46,714 INFO L93 Difference]: Finished difference Result 662 states and 801 transitions. [2019-10-07 14:56:46,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:56:46,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-10-07 14:56:46,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:46,721 INFO L225 Difference]: With dead ends: 662 [2019-10-07 14:56:46,721 INFO L226 Difference]: Without dead ends: 380 [2019-10-07 14:56:46,725 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:56:46,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2019-10-07 14:56:46,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 379. [2019-10-07 14:56:46,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-07 14:56:46,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 465 transitions. [2019-10-07 14:56:46,766 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 465 transitions. Word has length 124 [2019-10-07 14:56:46,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:46,767 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 465 transitions. [2019-10-07 14:56:46,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:56:46,768 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 465 transitions. [2019-10-07 14:56:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 14:56:46,775 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:46,776 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:56:46,776 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:46,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:46,776 INFO L82 PathProgramCache]: Analyzing trace with hash -127152052, now seen corresponding path program 1 times [2019-10-07 14:56:46,776 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:46,777 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:46,777 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:46,777 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:46,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:47,282 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:56:47,282 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:47,283 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:47,284 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-07 14:56:47,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-07 14:56:47,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-07 14:56:47,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:56:47,287 INFO L87 Difference]: Start difference. First operand 379 states and 465 transitions. Second operand 19 states. [2019-10-07 14:56:53,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:53,353 INFO L93 Difference]: Finished difference Result 728 states and 854 transitions. [2019-10-07 14:56:53,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-07 14:56:53,354 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 125 [2019-10-07 14:56:53,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:53,360 INFO L225 Difference]: With dead ends: 728 [2019-10-07 14:56:53,360 INFO L226 Difference]: Without dead ends: 553 [2019-10-07 14:56:53,362 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2019-10-07 14:56:53,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2019-10-07 14:56:53,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 546. [2019-10-07 14:56:53,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2019-10-07 14:56:53,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 651 transitions. [2019-10-07 14:56:53,452 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 651 transitions. Word has length 125 [2019-10-07 14:56:53,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:53,456 INFO L462 AbstractCegarLoop]: Abstraction has 546 states and 651 transitions. [2019-10-07 14:56:53,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-07 14:56:53,456 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 651 transitions. [2019-10-07 14:56:53,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-07 14:56:53,461 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:53,461 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:56:53,461 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:53,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:53,462 INFO L82 PathProgramCache]: Analyzing trace with hash -2091812765, now seen corresponding path program 1 times [2019-10-07 14:56:53,462 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:53,462 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:53,463 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:53,463 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:53,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:53,967 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:56:53,967 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:53,968 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:53,968 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-07 14:56:53,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:56:53,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:56:53,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:56:53,970 INFO L87 Difference]: Start difference. First operand 546 states and 651 transitions. Second operand 21 states. [2019-10-07 14:56:55,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:55,510 INFO L93 Difference]: Finished difference Result 595 states and 702 transitions. [2019-10-07 14:56:55,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 14:56:55,511 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 131 [2019-10-07 14:56:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:55,515 INFO L225 Difference]: With dead ends: 595 [2019-10-07 14:56:55,515 INFO L226 Difference]: Without dead ends: 573 [2019-10-07 14:56:55,516 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=193, Invalid=1613, Unknown=0, NotChecked=0, Total=1806 [2019-10-07 14:56:55,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2019-10-07 14:56:55,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 568. [2019-10-07 14:56:55,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2019-10-07 14:56:55,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 671 transitions. [2019-10-07 14:56:55,551 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 671 transitions. Word has length 131 [2019-10-07 14:56:55,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:55,551 INFO L462 AbstractCegarLoop]: Abstraction has 568 states and 671 transitions. [2019-10-07 14:56:55,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:56:55,552 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 671 transitions. [2019-10-07 14:56:55,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-07 14:56:55,555 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:55,556 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:56:55,556 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:55,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:55,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2107711952, now seen corresponding path program 1 times [2019-10-07 14:56:55,557 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:55,557 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:55,557 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:55,557 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:55,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:55,835 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-07 14:56:55,836 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:55,836 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:55,836 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:56:55,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:56:55,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:56:55,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:56:55,837 INFO L87 Difference]: Start difference. First operand 568 states and 671 transitions. Second operand 8 states. [2019-10-07 14:56:55,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:55,903 INFO L93 Difference]: Finished difference Result 813 states and 924 transitions. [2019-10-07 14:56:55,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:56:55,903 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 211 [2019-10-07 14:56:55,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:55,909 INFO L225 Difference]: With dead ends: 813 [2019-10-07 14:56:55,909 INFO L226 Difference]: Without dead ends: 568 [2019-10-07 14:56:55,911 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:56:55,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2019-10-07 14:56:55,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2019-10-07 14:56:55,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2019-10-07 14:56:55,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 669 transitions. [2019-10-07 14:56:55,960 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 669 transitions. Word has length 211 [2019-10-07 14:56:55,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:55,962 INFO L462 AbstractCegarLoop]: Abstraction has 568 states and 669 transitions. [2019-10-07 14:56:55,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:56:55,963 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 669 transitions. [2019-10-07 14:56:55,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-07 14:56:55,967 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:55,967 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:56:55,968 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:55,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:55,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1220567418, now seen corresponding path program 1 times [2019-10-07 14:56:55,968 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:55,969 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:55,969 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:55,969 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:55,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:56,328 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:56:56,328 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:56,329 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:56:56,329 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 14:56:56,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 14:56:56,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 14:56:56,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:56:56,331 INFO L87 Difference]: Start difference. First operand 568 states and 669 transitions. Second operand 11 states. [2019-10-07 14:56:58,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:56:58,446 INFO L93 Difference]: Finished difference Result 715 states and 815 transitions. [2019-10-07 14:56:58,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:56:58,447 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 216 [2019-10-07 14:56:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:56:58,451 INFO L225 Difference]: With dead ends: 715 [2019-10-07 14:56:58,451 INFO L226 Difference]: Without dead ends: 592 [2019-10-07 14:56:58,455 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:56:58,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2019-10-07 14:56:58,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 543. [2019-10-07 14:56:58,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-10-07 14:56:58,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 634 transitions. [2019-10-07 14:56:58,491 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 634 transitions. Word has length 216 [2019-10-07 14:56:58,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:56:58,491 INFO L462 AbstractCegarLoop]: Abstraction has 543 states and 634 transitions. [2019-10-07 14:56:58,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 14:56:58,492 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 634 transitions. [2019-10-07 14:56:58,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-07 14:56:58,496 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:56:58,496 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:56:58,497 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:56:58,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:56:58,497 INFO L82 PathProgramCache]: Analyzing trace with hash -502005642, now seen corresponding path program 1 times [2019-10-07 14:56:58,497 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:56:58,498 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:58,498 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:58,498 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:56:58,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:56:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:56:59,666 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-07 14:56:59,666 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:56:59,666 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:56:59,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:57:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:00,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 3004 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:57:00,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:57:00,450 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-07 14:57:00,450 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:57:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:57:01,231 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:57:01,267 INFO L162 IcfgInterpreter]: Started Sifa with 212 locations of interest [2019-10-07 14:57:01,267 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:57:01,275 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:57:01,284 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:57:01,284 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:57:37,514 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 14:57:40,657 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 281 DAG size of output: 229 [2019-10-07 14:57:41,046 WARN L191 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 686 [2019-10-07 14:57:41,298 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 686 [2019-10-07 14:57:41,505 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 686 [2019-10-07 14:57:41,648 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:57:42,266 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 976 [2019-10-07 14:57:42,921 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 976 [2019-10-07 14:57:43,544 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 976 [2019-10-07 14:57:43,746 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:57:44,338 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 976 [2019-10-07 14:57:45,596 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 978 DAG size of output: 976 [2019-10-07 14:57:46,158 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 976 [2019-10-07 14:57:46,291 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:57:46,928 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 976 [2019-10-07 14:57:47,510 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 976 [2019-10-07 14:57:48,098 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 976 [2019-10-07 14:57:48,217 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:57:48,788 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 976 [2019-10-07 14:57:48,811 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 541 for LOIs [2019-10-07 14:57:49,198 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:57:49,416 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:57:49,849 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 911 [2019-10-07 14:57:49,851 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1016 for LOIs [2019-10-07 14:57:50,439 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:57:51,000 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:57:51,259 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:52,098 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:57:52,676 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:57:53,242 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:57:53,466 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:54,266 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:57:54,855 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:57:55,448 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:57:55,644 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:56,436 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:57:57,449 WARN L191 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 1138 DAG size of output: 1016 [2019-10-07 14:57:58,010 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:57:58,251 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:57:59,046 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:57:59,618 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:00,177 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:00,373 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:01,166 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:01,730 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:02,302 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:02,490 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:03,276 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:03,832 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:04,391 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:04,582 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:05,368 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:05,934 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:06,486 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:06,678 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:07,468 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:08,022 WARN L191 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:08,575 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:08,765 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:09,606 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:10,164 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:10,717 WARN L191 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:10,906 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:11,695 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:12,252 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:12,806 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:12,996 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:13,799 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:14,366 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:14,918 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:15,106 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:15,891 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:16,447 WARN L191 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:17,001 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 1016 [2019-10-07 14:58:17,196 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:17,975 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:18,817 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:19,610 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:19,818 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:20,603 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:22,054 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1138 DAG size of output: 1136 [2019-10-07 14:58:22,843 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:23,049 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:23,830 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:24,624 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:25,416 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:25,606 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:26,396 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:27,232 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:28,032 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:28,230 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:29,026 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:29,887 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:30,692 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:30,890 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:31,681 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:32,479 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:33,277 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:33,468 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:34,257 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:35,057 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:58:35,841 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:58:36,035 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:36,826 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:37,617 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:38,406 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:58:38,601 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:58:39,400 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:58:41,591 WARN L191 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 1138 DAG size of output: 1136 [2019-10-07 14:58:42,384 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:42,582 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:43,370 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:44,933 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1138 DAG size of output: 1136 [2019-10-07 14:58:45,729 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:45,930 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:46,720 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:47,508 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:48,306 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:48,496 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:49,278 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:51,857 WARN L191 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 1138 DAG size of output: 1136 [2019-10-07 14:58:52,642 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:52,839 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:53,625 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:55,850 WARN L191 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 1138 DAG size of output: 1136 [2019-10-07 14:58:56,636 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:56,831 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:58:57,622 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:58,403 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:59,189 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:58:59,380 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:59:00,159 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:59:00,976 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:59:01,775 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:59:01,976 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:59:02,769 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:59:04,197 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1142 DAG size of output: 1138 [2019-10-07 14:59:04,982 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:59:05,188 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:59:05,987 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:59:07,401 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1142 DAG size of output: 1138 [2019-10-07 14:59:08,188 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:59:08,380 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:59:09,165 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:59:10,590 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1142 DAG size of output: 1138 [2019-10-07 14:59:11,374 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1138 [2019-10-07 14:59:11,592 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:59:12,376 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:59:13,797 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1140 [2019-10-07 14:59:14,581 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1140 [2019-10-07 14:59:14,777 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:59:15,560 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:59:15,807 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:59:15,809 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:59:15,815 INFO L168 Benchmark]: Toolchain (without parser) took 156000.64 ms. Allocated memory was 145.2 MB in the beginning and 704.1 MB in the end (delta: 558.9 MB). Free memory was 99.1 MB in the beginning and 125.2 MB in the end (delta: -26.1 MB). Peak memory consumption was 532.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:59:15,815 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 14:59:15,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1028.57 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 99.1 MB in the beginning and 139.1 MB in the end (delta: -40.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:59:15,817 INFO L168 Benchmark]: Boogie Preprocessor took 192.31 ms. Allocated memory is still 202.9 MB. Free memory was 139.1 MB in the beginning and 130.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:59:15,817 INFO L168 Benchmark]: RCFGBuilder took 4166.33 ms. Allocated memory was 202.9 MB in the beginning and 299.9 MB in the end (delta: 97.0 MB). Free memory was 130.1 MB in the beginning and 98.9 MB in the end (delta: 31.1 MB). Peak memory consumption was 128.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:59:15,818 INFO L168 Benchmark]: TraceAbstraction took 150608.75 ms. Allocated memory was 299.9 MB in the beginning and 704.1 MB in the end (delta: 404.2 MB). Free memory was 98.9 MB in the beginning and 125.2 MB in the end (delta: -26.3 MB). Peak memory consumption was 377.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:59:15,826 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1028.57 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 99.1 MB in the beginning and 139.1 MB in the end (delta: -40.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 192.31 ms. Allocated memory is still 202.9 MB. Free memory was 139.1 MB in the beginning and 130.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4166.33 ms. Allocated memory was 202.9 MB in the beginning and 299.9 MB in the end (delta: 97.0 MB). Free memory was 130.1 MB in the beginning and 98.9 MB in the end (delta: 31.1 MB). Peak memory consumption was 128.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 150608.75 ms. Allocated memory was 299.9 MB in the beginning and 704.1 MB in the end (delta: 404.2 MB). Free memory was 98.9 MB in the beginning and 125.2 MB in the end (delta: -26.3 MB). Peak memory consumption was 377.9 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...