./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/email_spec1_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/email_spec1_product32.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30f71deb777850b9ac55cc0adf7b83928eb3c01d .................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:48:18,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:48:18,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:48:18,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:48:18,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:48:18,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:48:18,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:48:18,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:48:18,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:48:18,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:48:18,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:48:18,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:48:18,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:48:18,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:48:18,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:48:18,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:48:18,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:48:18,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:48:18,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:48:18,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:48:18,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:48:18,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:48:18,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:48:18,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:48:18,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:48:18,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:48:18,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:48:18,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:48:18,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:48:18,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:48:18,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:48:18,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:48:18,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:48:18,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:48:18,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:48:18,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:48:18,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:48:18,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:48:18,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:48:18,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:48:18,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:48:18,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:48:18,258 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:48:18,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:48:18,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:48:18,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:48:18,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:48:18,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:48:18,262 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:48:18,262 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:48:18,262 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:48:18,263 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:48:18,263 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:48:18,264 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:48:18,264 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:48:18,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:48:18,264 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:48:18,265 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:48:18,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:48:18,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:48:18,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:48:18,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:48:18,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:48:18,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:48:18,266 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:48:18,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:48:18,267 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:48:18,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:48:18,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:48:18,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:48:18,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:48:18,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:48:18,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:48:18,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:48:18,270 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:48:18,270 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f71deb777850b9ac55cc0adf7b83928eb3c01d [2021-08-27 15:48:18,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:48:18,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:48:18,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:48:18,589 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:48:18,590 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:48:18,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec1_product32.cil.c [2021-08-27 15:48:18,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c05b7040/92fb18cc81a8440391c40c3ff0233569/FLAGe1340deb6 [2021-08-27 15:48:19,160 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:48:19,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product32.cil.c [2021-08-27 15:48:19,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c05b7040/92fb18cc81a8440391c40c3ff0233569/FLAGe1340deb6 [2021-08-27 15:48:19,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c05b7040/92fb18cc81a8440391c40c3ff0233569 [2021-08-27 15:48:19,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:48:19,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:48:19,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:48:19,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:48:19,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:48:19,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:48:19" (1/1) ... [2021-08-27 15:48:19,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a15f1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:19, skipping insertion in model container [2021-08-27 15:48:19,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:48:19" (1/1) ... [2021-08-27 15:48:19,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:48:19,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:48:20,165 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product32.cil.c[65148,65161] [2021-08-27 15:48:20,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:48:20,178 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:48:20,323 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product32.cil.c[65148,65161] [2021-08-27 15:48:20,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:48:20,362 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:48:20,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20 WrapperNode [2021-08-27 15:48:20,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:48:20,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:48:20,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:48:20,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:48:20,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20" (1/1) ... [2021-08-27 15:48:20,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20" (1/1) ... [2021-08-27 15:48:20,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:48:20,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:48:20,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:48:20,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:48:20,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20" (1/1) ... [2021-08-27 15:48:20,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20" (1/1) ... [2021-08-27 15:48:20,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20" (1/1) ... [2021-08-27 15:48:20,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20" (1/1) ... [2021-08-27 15:48:20,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20" (1/1) ... [2021-08-27 15:48:20,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20" (1/1) ... [2021-08-27 15:48:20,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20" (1/1) ... [2021-08-27 15:48:20,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:48:20,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:48:20,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:48:20,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:48:20,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20" (1/1) ... [2021-08-27 15:48:20,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:20,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:20,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:48:20,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:48:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-08-27 15:48:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:48:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:48:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:48:20,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:48:23,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:48:23,460 INFO L299 CfgBuilder]: Removed 681 assume(true) statements. [2021-08-27 15:48:23,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:48:23 BoogieIcfgContainer [2021-08-27 15:48:23,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:48:23,465 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:48:23,465 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:48:23,467 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:48:23,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:48:23,468 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:48:19" (1/3) ... [2021-08-27 15:48:23,469 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d1229f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:48:23, skipping insertion in model container [2021-08-27 15:48:23,469 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:48:23,469 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:20" (2/3) ... [2021-08-27 15:48:23,469 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d1229f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:48:23, skipping insertion in model container [2021-08-27 15:48:23,470 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:48:23,470 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:48:23" (3/3) ... [2021-08-27 15:48:23,471 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec1_product32.cil.c [2021-08-27 15:48:23,515 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:48:23,515 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:48:23,515 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:48:23,516 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:48:23,516 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:48:23,516 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:48:23,516 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:48:23,516 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:48:23,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 1068 states, 1067 states have (on average 1.7507029053420806) internal successors, (1868), 1067 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:48:23,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 255 [2021-08-27 15:48:23,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:48:23,617 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:48:23,629 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:48:23,630 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:48:23,630 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:48:23,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 1068 states, 1067 states have (on average 1.7507029053420806) internal successors, (1868), 1067 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:48:23,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 255 [2021-08-27 15:48:23,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:48:23,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:48:23,651 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:48:23,651 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:48:23,656 INFO L791 eck$LassoCheckResult]: Stem: 506#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(10);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(34);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(16);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(20);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(22);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string58.base, #t~string58.offset, 1);call write~init~int(115, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(10, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(21);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(30);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(21);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(30);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(9);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(25);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(30);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(9);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(25);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(10);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(12);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(10);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(18);call #t~string110.base, #t~string110.offset := #Ultimate.allocOnStack(16);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(21);call #t~string116.base, #t~string116.offset := #Ultimate.allocOnStack(13);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(16);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(25);call #t~string126.base, #t~string126.offset := #Ultimate.allocOnStack(44);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(44);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(9);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(9);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(11);call #t~string141.base, #t~string141.offset := #Ultimate.allocOnStack(19);call #t~string144.base, #t~string144.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string144.base, #t~string144.offset, 1);call write~init~int(100, #t~string144.base, 1 + #t~string144.offset, 1);call write~init~int(10, #t~string144.base, 2 + #t~string144.offset, 1);call write~init~int(0, #t~string144.base, 3 + #t~string144.offset, 1);call #t~string147.base, #t~string147.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string147.base, #t~string147.offset, 1);call write~init~int(100, #t~string147.base, 1 + #t~string147.offset, 1);call write~init~int(10, #t~string147.base, 2 + #t~string147.offset, 1);call write~init~int(0, #t~string147.base, 3 + #t~string147.offset, 1);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~mail_is_sensitive~0 := -1;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 982#L-1true havoc main_#res;havoc main_#t~ret139, main_~retValue_acc~43, main_~tmp~24;havoc main_~retValue_acc~43;havoc main_~tmp~24; 197#L77true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 566#L85true main_#t~ret139 := valid_product_#res;main_~tmp~24 := main_#t~ret139;havoc main_#t~ret139; 19#L2910true assume 0 != main_~tmp~24;havoc setup_#t~nondet134, setup_#t~nondet136, setup_#t~nondet138, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 171#L2616true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 198#L2622-2true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_bob_~bob___0, 123;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 5#L2181true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 602#L2187-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string133.base, #t~string133.offset;havoc setup_#t~nondet134;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setup_rjh__wrappee__Base_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__wrappee__Base_~rjh___0;setup_rjh__wrappee__Base_~rjh___0 := setup_rjh__wrappee__Base_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__wrappee__Base_~rjh___0, setup_rjh__wrappee__Base_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 101#L2616-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 374#L2622-5true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_rjh_~rjh___0, 456;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 58#L2181-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 323#L2187-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string135.base, #t~string135.offset;havoc setup_#t~nondet136;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setup_chuck__wrappee__Base_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__wrappee__Base_~chuck___0;setup_chuck__wrappee__Base_~chuck___0 := setup_chuck__wrappee__Base_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__wrappee__Base_~chuck___0, setup_chuck__wrappee__Base_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 1014#L2616-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 677#L2622-8true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_chuck_~chuck___0, 789;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 181#L2181-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 191#L2187-8true setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset := #t~string137.base, #t~string137.offset;havoc setup_#t~nondet138; 645#L2897true havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_#t~nondet17, test_#t~nondet18, test_~op1~0, test_~op2~0, test_~op3~0, test_~op4~0, test_~op5~0, test_~op6~0, test_~op7~0, test_~op8~0, test_~op9~0, test_~op10~0, test_~op11~0, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 189#L288-1true [2021-08-27 15:48:23,657 INFO L793 eck$LassoCheckResult]: Loop: 189#L288-1true assume !false; 302#L140true assume test_~splverifierCounter~0 < 4; 875#L141true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 503#L147true assume !(0 == test_~op1~0); 910#L160true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet9;havoc test_#t~nondet9; 683#L165true assume 0 != test_~tmp___8~0;setClientAutoResponse_#in~handle, setClientAutoResponse_#in~value := ~rjh~0, 1;havoc setClientAutoResponse_~handle, setClientAutoResponse_~value;setClientAutoResponse_~handle := setClientAutoResponse_#in~handle;setClientAutoResponse_~value := setClientAutoResponse_#in~value; 88#L2134true assume 1 == setClientAutoResponse_~handle;~__ste_client_autoResponse0~0 := setClientAutoResponse_~value; 90#L2140-2true test_~op2~0 := 1; 189#L288-1true [2021-08-27 15:48:23,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:23,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2021-08-27 15:48:23,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:48:23,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460892534] [2021-08-27 15:48:23,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:48:23,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:48:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:48:23,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:48:23,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460892534] [2021-08-27 15:48:23,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460892534] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:48:23,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:48:23,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:48:23,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904328054] [2021-08-27 15:48:23,999 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:48:24,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:24,001 INFO L82 PathProgramCache]: Analyzing trace with hash 527790547, now seen corresponding path program 1 times [2021-08-27 15:48:24,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:48:24,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290872660] [2021-08-27 15:48:24,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:48:24,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:48:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:48:24,024 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:48:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:48:24,073 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:48:24,174 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:48:24,174 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:48:24,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:48:24,175 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:48:24,175 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 15:48:24,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:24,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:48:24,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:48:24,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec1_product32.cil.c_Iteration1_Loop [2021-08-27 15:48:24,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:48:24,176 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:48:24,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,365 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:48:24,366 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 15:48:24,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:24,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:24,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:48:24,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:48:24,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:48:24,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 15:48:24,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 15:48:24,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:24,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:24,436 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:48:24,444 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 15:48:24,444 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:48:24,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 15:48:24,493 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 15:48:24,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 15:48:24,502 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:48:24,502 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:48:24,502 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:48:24,502 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:48:24,502 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:48:24,502 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:24,502 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:48:24,502 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:48:24,502 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec1_product32.cil.c_Iteration1_Loop [2021-08-27 15:48:24,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:48:24,502 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:48:24,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:24,667 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:48:24,671 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:48:24,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:24,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:24,677 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:48:24,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:48:24,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:48:24,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:48:24,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:48:24,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:48:24,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:48:24,707 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:48:24,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:48:24,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 15:48:24,720 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:48:24,747 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 15:48:24,747 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 15:48:24,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:24,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:24,750 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:48:24,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 15:48:24,752 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:48:24,752 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 15:48:24,753 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:48:24,753 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] [2021-08-27 15:48:24,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 15:48:24,781 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 15:48:24,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:24,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:48:24,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:48:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:25,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:48:25,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:48:25,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-08-27 15:48:25,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:48:25,275 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-27 15:48:25,278 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 1068 states, 1067 states have (on average 1.7507029053420806) internal successors, (1868), 1067 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:48:25,475 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 1068 states, 1067 states have (on average 1.7507029053420806) internal successors, (1868), 1067 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 2895 states and 5034 transitions. Complement of second has 7 states. [2021-08-27 15:48:25,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 15:48:25,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:48:25,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3219 transitions. [2021-08-27 15:48:25,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3219 transitions. Stem has 18 letters. Loop has 8 letters. [2021-08-27 15:48:25,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:25,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3219 transitions. Stem has 26 letters. Loop has 8 letters. [2021-08-27 15:48:25,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:25,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3219 transitions. Stem has 18 letters. Loop has 16 letters. [2021-08-27 15:48:25,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:25,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2895 states and 5034 transitions. [2021-08-27 15:48:25,517 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:48:25,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2895 states to 0 states and 0 transitions. [2021-08-27 15:48:25,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:48:25,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:48:25,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:48:25,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:48:25,521 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:25,521 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:25,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:48:25,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:48:25,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:48:25,527 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:48:25,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:48:25,528 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-27 15:48:25,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 15:48:25,529 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-27 15:48:25,529 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:48:25,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 15:48:25,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:48:25,530 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:48:25,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:48:25,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:48:25,531 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:25,531 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:25,532 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:25,532 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:48:25,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 15:48:25,532 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:48:25,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 15:48:25,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:48:25 BoogieIcfgContainer [2021-08-27 15:48:25,537 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:48:25,537 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:48:25,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:48:25,538 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:48:25,538 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:48:23" (3/4) ... [2021-08-27 15:48:25,541 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 15:48:25,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:48:25,544 INFO L168 Benchmark]: Toolchain (without parser) took 5872.17 ms. Allocated memory was 46.1 MB in the beginning and 216.0 MB in the end (delta: 169.9 MB). Free memory was 28.0 MB in the beginning and 92.0 MB in the end (delta: -63.9 MB). Peak memory consumption was 106.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:25,544 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 46.1 MB. Free memory is still 28.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:48:25,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.99 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 27.8 MB in the beginning and 26.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:25,546 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.46 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 26.0 MB in the beginning and 38.7 MB in the end (delta: -12.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:25,547 INFO L168 Benchmark]: Boogie Preprocessor took 146.62 ms. Allocated memory is still 69.2 MB. Free memory was 38.7 MB in the beginning and 32.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:25,551 INFO L168 Benchmark]: RCFGBuilder took 2812.07 ms. Allocated memory was 69.2 MB in the beginning and 216.0 MB in the end (delta: 146.8 MB). Free memory was 31.8 MB in the beginning and 152.5 MB in the end (delta: -120.7 MB). Peak memory consumption was 82.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:25,551 INFO L168 Benchmark]: BuchiAutomizer took 2072.43 ms. Allocated memory is still 216.0 MB. Free memory was 152.5 MB in the beginning and 92.0 MB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:25,552 INFO L168 Benchmark]: Witness Printer took 3.48 ms. Allocated memory is still 216.0 MB. Free memory is still 92.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:48:25,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 46.1 MB. Free memory is still 28.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 683.99 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 27.8 MB in the beginning and 26.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 139.46 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 26.0 MB in the beginning and 38.7 MB in the end (delta: -12.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 146.62 ms. Allocated memory is still 69.2 MB. Free memory was 38.7 MB in the beginning and 32.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2812.07 ms. Allocated memory was 69.2 MB in the beginning and 216.0 MB in the end (delta: 146.8 MB). Free memory was 31.8 MB in the beginning and 152.5 MB in the end (delta: -120.7 MB). Peak memory consumption was 82.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2072.43 ms. Allocated memory is still 216.0 MB. Free memory was 152.5 MB in the beginning and 92.0 MB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.48 ms. Allocated memory is still 216.0 MB. Free memory is still 92.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 7 + -2 * splverifierCounter and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1860 SDtfs, 1861 SDslu, 3616 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital45 mio100 ax100 hnf100 lsp24 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq209 hnf86 smp100 dnf120 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 81ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 15:48:25,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...