./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/email_spec6_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 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_spec6_product16.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 e992a4a1b011d34d5ffcc15b61cc5763084cf9a8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:59:19,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:59:19,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:59:19,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:59:19,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:59:19,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:59:19,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:59:19,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:59:19,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:59:19,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:59:19,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:59:19,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:59:19,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:59:19,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:59:19,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:59:19,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:59:19,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:59:19,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:59:19,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:59:19,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:59:19,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:59:19,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:59:19,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:59:19,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:59:19,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:59:19,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:59:19,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:59:19,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:59:19,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:59:19,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:59:19,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:59:19,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:59:19,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:59:19,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:59:19,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:59:19,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:59:19,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:59:19,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:59:19,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:59:19,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:59:19,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:59:19,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 04:59:19,490 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:59:19,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:59:19,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:59:19,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:59:19,494 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:59:19,494 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:59:19,495 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:59:19,495 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:59:19,495 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:59:19,496 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:59:19,497 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:59:19,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:59:19,497 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 04:59:19,498 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:59:19,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:59:19,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 04:59:19,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:59:19,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:59:19,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:59:19,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:59:19,500 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 04:59:19,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:59:19,500 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:59:19,500 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:59:19,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:59:19,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:59:19,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:59:19,502 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:59:19,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:59:19,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:59:19,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:59:19,503 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:59:19,504 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:59:19,505 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e992a4a1b011d34d5ffcc15b61cc5763084cf9a8 [2020-10-26 04:59:19,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:59:19,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:59:19,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:59:19,991 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:59:19,991 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:59:19,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec6_product16.cil.c [2020-10-26 04:59:20,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/308011edf/78f6bd6e8a724cddb9ab37e9bb46b7a2/FLAGe14656a38 [2020-10-26 04:59:20,767 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:59:20,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product16.cil.c [2020-10-26 04:59:20,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/308011edf/78f6bd6e8a724cddb9ab37e9bb46b7a2/FLAGe14656a38 [2020-10-26 04:59:21,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/308011edf/78f6bd6e8a724cddb9ab37e9bb46b7a2 [2020-10-26 04:59:21,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:59:21,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:59:21,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:59:21,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:59:21,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:59:21,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:59:21" (1/1) ... [2020-10-26 04:59:21,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@892894e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:21, skipping insertion in model container [2020-10-26 04:59:21,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:59:21" (1/1) ... [2020-10-26 04:59:21,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:59:21,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:59:21,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:59:21,811 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:59:22,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:59:22,128 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:59:22,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22 WrapperNode [2020-10-26 04:59:22,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:59:22,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:59:22,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:59:22,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:59:22,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22" (1/1) ... [2020-10-26 04:59:22,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22" (1/1) ... [2020-10-26 04:59:22,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:59:22,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:59:22,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:59:22,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:59:22,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22" (1/1) ... [2020-10-26 04:59:22,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22" (1/1) ... [2020-10-26 04:59:22,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22" (1/1) ... [2020-10-26 04:59:22,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22" (1/1) ... [2020-10-26 04:59:22,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22" (1/1) ... [2020-10-26 04:59:22,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22" (1/1) ... [2020-10-26 04:59:22,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22" (1/1) ... [2020-10-26 04:59:22,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:59:22,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:59:22,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:59:22,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:59:22,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:22,551 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-26 04:59:22,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:59:22,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:59:22,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:59:22,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:59:25,129 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:59:25,129 INFO L298 CfgBuilder]: Removed 307 assume(true) statements. [2020-10-26 04:59:25,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:59:25 BoogieIcfgContainer [2020-10-26 04:59:25,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:59:25,133 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:59:25,133 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:59:25,137 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:59:25,138 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:59:25,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:59:21" (1/3) ... [2020-10-26 04:59:25,140 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70cf6258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:59:25, skipping insertion in model container [2020-10-26 04:59:25,140 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:59:25,140 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:59:22" (2/3) ... [2020-10-26 04:59:25,141 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70cf6258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:59:25, skipping insertion in model container [2020-10-26 04:59:25,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:59:25,141 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:59:25" (3/3) ... [2020-10-26 04:59:25,143 INFO L373 chiAutomizerObserver]: Analyzing ICFG email_spec6_product16.cil.c [2020-10-26 04:59:25,199 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:59:25,199 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:59:25,199 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:59:25,199 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:59:25,200 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:59:25,200 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:59:25,200 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:59:25,200 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:59:25,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 465 states. [2020-10-26 04:59:25,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2020-10-26 04:59:25,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:59:25,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:59:25,323 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:59:25,324 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:59:25,324 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:59:25,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 465 states. [2020-10-26 04:59:25,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2020-10-26 04:59:25,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:59:25,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:59:25,342 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:59:25,342 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:59:25,350 INFO L794 eck$LassoCheckResult]: Stem: 301#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~string7.base, #t~string7.offset := #Ultimate.allocOnStack(44);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(44);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(9);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(9);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(11);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(19);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string25.base, #t~string25.offset, 1);call write~init~int(100, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(10, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string28.base, #t~string28.offset, 1);call write~init~int(100, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(10, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(10);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(12);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(10);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(18);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(16);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(21);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string104.base, #t~string104.offset, 1);call write~init~int(115, #t~string104.base, 1 + #t~string104.offset, 1);call write~init~int(10, #t~string104.base, 2 + #t~string104.offset, 1);call write~init~int(0, #t~string104.base, 3 + #t~string104.offset, 1);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(13);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(19);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(16);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(19);call #t~string118.base, #t~string118.offset := #Ultimate.allocOnStack(10);call #t~string124.base, #t~string124.offset := #Ultimate.allocOnStack(16);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(20);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(21);~__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;~bob~0 := 0;~rjh~0 := 0;~chuck~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;~__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;~head~0.base, ~head~0.offset := 0, 0;~sent_encrypted~0 := -1;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0; 251#L-1true havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 246#L2237true havoc valid_product_#res;havoc valid_product_~retValue_acc~33;havoc valid_product_~retValue_acc~33;valid_product_~retValue_acc~33 := 1;valid_product_#res := valid_product_~retValue_acc~33; 258#L2245true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 238#L222true assume 0 != main_~tmp~1;havoc setup_#t~nondet15, setup_#t~nondet17, setup_#t~nondet19, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.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_tmp3~0.base, setup_~__cil_tmp3~0.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; 130#L1411true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 446#L1417-2true 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; 348#L976true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 221#L982-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string14.base, #t~string14.offset;havoc setup_#t~nondet15;~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; 140#L1411-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 421#L1417-5true 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; 340#L976-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 226#L982-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string16.base, #t~string16.offset;havoc setup_#t~nondet17;~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; 141#L1411-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 428#L1417-8true 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; 343#L976-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 217#L982-8true setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string18.base, #t~string18.offset;havoc setup_#t~nondet19; 299#L209true havoc test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_#t~nondet83, 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~8, test_~tmp___0~2, test_~tmp___1~1, 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~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;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; 135#L2435-1true [2020-10-26 04:59:25,350 INFO L796 eck$LassoCheckResult]: Loop: 135#L2435-1true assume !false; 302#L2290true assume test_~splverifierCounter~0 < 4; 189#L2291true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 350#L2297true assume !(0 == test_~op1~0); 292#L2310true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet74;havoc test_#t~nondet74; 213#L2315true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 135#L2435-1true [2020-10-26 04:59:25,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:59:25,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2020-10-26 04:59:25,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:59:25,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611380841] [2020-10-26 04:59:25,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:59:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:59:25,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:59:25,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611380841] [2020-10-26 04:59:25,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:59:25,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 04:59:25,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568270845] [2020-10-26 04:59:25,802 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:59:25,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:59:25,803 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2020-10-26 04:59:25,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:59:25,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272136760] [2020-10-26 04:59:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:59:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:59:25,818 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:59:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:59:25,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:59:25,856 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:59:25,926 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:59:25,927 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:59:25,928 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:59:25,928 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:59:25,928 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:59:25,928 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:25,929 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:59:25,929 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:59:25,929 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec6_product16.cil.c_Iteration1_Loop [2020-10-26 04:59:25,929 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:59:25,930 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:59:25,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:25,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:25,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:25,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:26,118 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:59:26,119 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:26,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:59:26,132 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:26,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:59:26,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:59:26,188 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:59:26,222 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:59:26,222 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:59:26,223 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:59:26,223 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:59:26,223 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:59:26,223 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:26,223 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:59:26,223 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:59:26,223 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec6_product16.cil.c_Iteration1_Loop [2020-10-26 04:59:26,224 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:59:26,224 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:59:26,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:26,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:26,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:26,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:26,339 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:59:26,345 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:59:26,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:59:26,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:59:26,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:59:26,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:59:26,356 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-26 04:59:26,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:59:26,362 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-26 04:59:26,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:26,377 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:59:26,422 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:59:26,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:59:26,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:59:26,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:59:26,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:59:26,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:59:26,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:59:26,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:26,436 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:59:26,445 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:59:26,446 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:26,453 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:59:26,454 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:59:26,454 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:59:26,455 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] [2020-10-26 04:59:26,489 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:59:26,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:59:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:59:26,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:59:26,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:59:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:59:26,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:59:26,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:59:26,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:59:26,873 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-26 04:59:26,875 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 465 states. Second operand 4 states. [2020-10-26 04:59:27,178 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 465 states.. Second operand 4 states. Result 1990 states and 3434 transitions. Complement of second has 7 states. [2020-10-26 04:59:27,179 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 [2020-10-26 04:59:27,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:59:27,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1928 transitions. [2020-10-26 04:59:27,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1928 transitions. Stem has 18 letters. Loop has 6 letters. [2020-10-26 04:59:27,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:59:27,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1928 transitions. Stem has 24 letters. Loop has 6 letters. [2020-10-26 04:59:27,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:59:27,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1928 transitions. Stem has 18 letters. Loop has 12 letters. [2020-10-26 04:59:27,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:59:27,194 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1990 states and 3434 transitions. [2020-10-26 04:59:27,226 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 423 [2020-10-26 04:59:27,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1990 states to 879 states and 1596 transitions. [2020-10-26 04:59:27,251 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 454 [2020-10-26 04:59:27,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 455 [2020-10-26 04:59:27,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 879 states and 1596 transitions. [2020-10-26 04:59:27,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:59:27,256 INFO L691 BuchiCegarLoop]: Abstraction has 879 states and 1596 transitions. [2020-10-26 04:59:27,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states and 1596 transitions. [2020-10-26 04:59:27,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 456. [2020-10-26 04:59:27,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2020-10-26 04:59:27,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 825 transitions. [2020-10-26 04:59:27,346 INFO L714 BuchiCegarLoop]: Abstraction has 456 states and 825 transitions. [2020-10-26 04:59:27,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:59:27,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:59:27,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:59:27,352 INFO L87 Difference]: Start difference. First operand 456 states and 825 transitions. Second operand 3 states. [2020-10-26 04:59:27,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:59:27,428 INFO L93 Difference]: Finished difference Result 892 states and 1615 transitions. [2020-10-26 04:59:27,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:59:27,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 892 states and 1615 transitions. [2020-10-26 04:59:27,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 424 [2020-10-26 04:59:27,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 892 states to 892 states and 1615 transitions. [2020-10-26 04:59:27,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 466 [2020-10-26 04:59:27,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 466 [2020-10-26 04:59:27,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 892 states and 1615 transitions. [2020-10-26 04:59:27,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:59:27,455 INFO L691 BuchiCegarLoop]: Abstraction has 892 states and 1615 transitions. [2020-10-26 04:59:27,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states and 1615 transitions. [2020-10-26 04:59:27,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 455. [2020-10-26 04:59:27,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-10-26 04:59:27,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 821 transitions. [2020-10-26 04:59:27,477 INFO L714 BuchiCegarLoop]: Abstraction has 455 states and 821 transitions. [2020-10-26 04:59:27,478 INFO L594 BuchiCegarLoop]: Abstraction has 455 states and 821 transitions. [2020-10-26 04:59:27,478 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:59:27,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 455 states and 821 transitions. [2020-10-26 04:59:27,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2020-10-26 04:59:27,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:59:27,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:59:27,486 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:59:27,486 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:59:27,487 INFO L794 eck$LassoCheckResult]: Stem: 4164#ULTIMATE.startENTRY #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~string7.base, #t~string7.offset := #Ultimate.allocOnStack(44);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(44);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(9);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(9);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(11);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(19);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string25.base, #t~string25.offset, 1);call write~init~int(100, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(10, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string28.base, #t~string28.offset, 1);call write~init~int(100, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(10, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(10);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(12);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(10);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(18);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(16);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(21);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string104.base, #t~string104.offset, 1);call write~init~int(115, #t~string104.base, 1 + #t~string104.offset, 1);call write~init~int(10, #t~string104.base, 2 + #t~string104.offset, 1);call write~init~int(0, #t~string104.base, 3 + #t~string104.offset, 1);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(13);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(19);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(16);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(19);call #t~string118.base, #t~string118.offset := #Ultimate.allocOnStack(10);call #t~string124.base, #t~string124.offset := #Ultimate.allocOnStack(16);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(20);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(21);~__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;~bob~0 := 0;~rjh~0 := 0;~chuck~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;~__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;~head~0.base, ~head~0.offset := 0, 0;~sent_encrypted~0 := -1;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0; 3918#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 3919#L2237 havoc valid_product_#res;havoc valid_product_~retValue_acc~33;havoc valid_product_~retValue_acc~33;valid_product_~retValue_acc~33 := 1;valid_product_#res := valid_product_~retValue_acc~33; 3938#L2245 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 3939#L222 assume 0 != main_~tmp~1;havoc setup_#t~nondet15, setup_#t~nondet17, setup_#t~nondet19, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.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_tmp3~0.base, setup_~__cil_tmp3~0.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; 4290#L1411 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 4277#L1417-2 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; 4303#L976 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4267#L982-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string14.base, #t~string14.offset;havoc setup_#t~nondet15;~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; 4298#L1411-2 assume !(1 == setClientId_~handle); 4233#L1414-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 4234#L1417-5 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; 4291#L976-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4272#L982-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string16.base, #t~string16.offset;havoc setup_#t~nondet17;~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; 4300#L1411-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 4251#L1417-8 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; 4299#L976-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4282#L982-8 setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string18.base, #t~string18.offset;havoc setup_#t~nondet19; 4162#L209 havoc test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_#t~nondet83, 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~8, test_~tmp___0~2, test_~tmp___1~1, 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~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;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; 4163#L2435-1 assume !false; 4165#L2290 [2020-10-26 04:59:27,487 INFO L796 eck$LassoCheckResult]: Loop: 4165#L2290 assume test_~splverifierCounter~0 < 4; 4166#L2291 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 4304#L2297 assume !(0 == test_~op1~0); 4138#L2310 assume !(0 == test_~op2~0); 4139#L2321 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet75;havoc test_#t~nondet75; 4145#L2326 assume 0 != test_~tmp___7~0;setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := ~rjh~0, 0;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 4301#L976-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4240#L982-11 test_~op3~0 := 1; 3903#L2435-1 assume !false; 4165#L2290 [2020-10-26 04:59:27,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:59:27,488 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2020-10-26 04:59:27,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:59:27,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371779214] [2020-10-26 04:59:27,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:59:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:59:27,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:59:27,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371779214] [2020-10-26 04:59:27,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:59:27,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 04:59:27,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894089048] [2020-10-26 04:59:27,687 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 04:59:27,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:59:27,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2020-10-26 04:59:27,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:59:27,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122296425] [2020-10-26 04:59:27,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:59:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:59:27,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:59:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:59:27,715 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:59:27,739 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:59:27,822 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:59:27,823 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:59:27,823 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:59:27,823 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:59:27,823 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:59:27,823 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:27,823 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:59:27,823 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:59:27,824 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec6_product16.cil.c_Iteration2_Loop [2020-10-26 04:59:27,824 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:59:27,824 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:59:27,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:27,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:27,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:27,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:27,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:27,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:27,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:28,034 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:59:28,034 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:28,042 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:59:28,042 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:59:28,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:59:28,087 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:28,126 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:59:28,128 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:59:28,128 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:59:28,128 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:59:28,128 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:59:28,128 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:59:28,128 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:28,128 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:59:28,128 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:59:28,129 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec6_product16.cil.c_Iteration2_Loop [2020-10-26 04:59:28,129 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:59:28,129 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:59:28,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:28,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:28,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:28,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:28,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:28,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:28,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:59:28,408 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:59:28,409 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:59:28,419 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:59:28,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:59:28,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:59:28,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:59:28,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:59:28,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:59:28,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:59:28,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:59:28,426 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:28,433 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:59:28,434 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:59:28,437 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:59:28,438 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:59:28,438 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:59:28,438 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] [2020-10-26 04:59:28,470 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:59:28,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:59:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:59:28,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:59:28,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:59:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:59:28,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:59:28,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:59:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:59:28,724 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 [2020-10-26 04:59:28,724 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 455 states and 821 transitions. cyclomatic complexity: 368 Second operand 4 states. [2020-10-26 04:59:28,761 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 455 states and 821 transitions. cyclomatic complexity: 368. Second operand 4 states. Result 883 states and 1601 transitions. Complement of second has 6 states. [2020-10-26 04:59:28,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:59:28,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:59:28,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2020-10-26 04:59:28,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 20 letters. Loop has 9 letters. [2020-10-26 04:59:28,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:59:28,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 29 letters. Loop has 9 letters. [2020-10-26 04:59:28,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:59:28,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 20 letters. Loop has 18 letters. [2020-10-26 04:59:28,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:59:28,766 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 883 states and 1601 transitions. [2020-10-26 04:59:28,776 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:59:28,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 883 states to 0 states and 0 transitions. [2020-10-26 04:59:28,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:59:28,777 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:59:28,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:59:28,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:59:28,777 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:59:28,777 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:59:28,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:59:28,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 04:59:28,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 04:59:28,779 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-10-26 04:59:28,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:59:28,779 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-26 04:59:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-26 04:59:28,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-26 04:59:28,780 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:59:28,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:59:28,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:59:28,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:59:28,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:59:28,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:59:28,781 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:59:28,781 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:59:28,781 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:59:28,781 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 04:59:28,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:59:28,782 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:59:28,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:59:28,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:59:28 BoogieIcfgContainer [2020-10-26 04:59:28,789 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:59:28,789 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:59:28,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:59:28,790 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:59:28,790 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:59:25" (3/4) ... [2020-10-26 04:59:28,794 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:59:28,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:59:28,797 INFO L168 Benchmark]: Toolchain (without parser) took 7788.29 ms. Allocated memory was 46.1 MB in the beginning and 144.7 MB in the end (delta: 98.6 MB). Free memory was 20.5 MB in the beginning and 66.2 MB in the end (delta: -45.7 MB). Peak memory consumption was 54.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:59:28,798 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 46.1 MB. Free memory was 26.1 MB in the beginning and 26.0 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:59:28,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1101.93 ms. Allocated memory is still 56.6 MB. Free memory was 40.6 MB in the beginning and 27.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:59:28,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 171.69 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 27.6 MB in the beginning and 42.7 MB in the end (delta: -15.1 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:59:28,801 INFO L168 Benchmark]: Boogie Preprocessor took 151.05 ms. Allocated memory is still 69.2 MB. Free memory was 42.7 MB in the beginning and 35.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:59:28,802 INFO L168 Benchmark]: RCFGBuilder took 2676.91 ms. Allocated memory was 69.2 MB in the beginning and 111.1 MB in the end (delta: 41.9 MB). Free memory was 35.7 MB in the beginning and 77.2 MB in the end (delta: -41.5 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2020-10-26 04:59:28,803 INFO L168 Benchmark]: BuchiAutomizer took 3655.64 ms. Allocated memory was 111.1 MB in the beginning and 144.7 MB in the end (delta: 33.6 MB). Free memory was 77.2 MB in the beginning and 66.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:59:28,803 INFO L168 Benchmark]: Witness Printer took 4.95 ms. Allocated memory is still 144.7 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:59:28,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 46.1 MB. Free memory was 26.1 MB in the beginning and 26.0 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1101.93 ms. Allocated memory is still 56.6 MB. Free memory was 40.6 MB in the beginning and 27.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 171.69 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 27.6 MB in the beginning and 42.7 MB in the end (delta: -15.1 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 151.05 ms. Allocated memory is still 69.2 MB. Free memory was 42.7 MB in the beginning and 35.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2676.91 ms. Allocated memory was 69.2 MB in the beginning and 111.1 MB in the end (delta: 41.9 MB). Free memory was 35.7 MB in the beginning and 77.2 MB in the end (delta: -41.5 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3655.64 ms. Allocated memory was 111.1 MB in the beginning and 144.7 MB in the end (delta: 33.6 MB). Free memory was 77.2 MB in the beginning and 66.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.95 ms. Allocated memory is still 144.7 MB. Free memory is still 66.2 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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * op2 + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * splverifierCounter + 7 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 860 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 455 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2811 SDtfs, 2392 SDslu, 3419 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf90 smp100 dnf134 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...