./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg --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 d51a9662ec11e877bdc62fbff8cdf19fcc101bb2b0234c411e7900fe51bd7f38 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:54:50,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:54:50,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:54:50,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:54:50,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:54:50,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:54:50,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:54:50,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:54:50,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:54:50,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:54:50,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:54:50,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:54:50,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:54:50,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:54:50,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:54:50,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:54:50,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:54:50,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:54:50,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:54:50,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:54:50,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:54:50,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:54:50,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:54:50,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:54:50,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:54:50,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:54:50,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:54:50,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:54:50,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:54:50,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:54:50,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:54:50,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:54:50,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:54:50,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:54:50,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:54:50,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:54:50,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:54:50,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:54:50,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:54:50,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:54:50,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:54:50,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:54:50,317 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:54:50,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:54:50,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:54:50,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:54:50,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:54:50,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:54:50,321 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:54:50,321 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:54:50,322 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:54:50,322 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:54:50,323 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:54:50,323 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:54:50,323 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:54:50,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:54:50,324 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:54:50,325 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:54:50,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:54:50,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:54:50,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:54:50,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:54:50,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:54:50,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:54:50,327 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:54:50,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:54:50,328 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:54:50,328 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:54:50,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:54:50,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:54:50,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:54:50,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:54:50,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:54:50,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:54:50,332 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:54:50,332 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d51a9662ec11e877bdc62fbff8cdf19fcc101bb2b0234c411e7900fe51bd7f38 [2021-10-28 09:54:50,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:54:50,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:54:50,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:54:50,716 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:54:50,718 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:54:50,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/email_spec27_product31.cil.c [2021-10-28 09:54:50,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/data/468b9e1b4/a12e01936dca4f93ae4e1bbb644db93a/FLAG90df7e4be [2021-10-28 09:54:51,593 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:54:51,594 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/sv-benchmarks/c/product-lines/email_spec27_product31.cil.c [2021-10-28 09:54:51,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/data/468b9e1b4/a12e01936dca4f93ae4e1bbb644db93a/FLAG90df7e4be [2021-10-28 09:54:51,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/data/468b9e1b4/a12e01936dca4f93ae4e1bbb644db93a [2021-10-28 09:54:51,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:54:51,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:54:51,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:51,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:54:51,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:54:51,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:51" (1/1) ... [2021-10-28 09:54:51,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0e5832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:51, skipping insertion in model container [2021-10-28 09:54:51,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:51" (1/1) ... [2021-10-28 09:54:51,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:54:51,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:54:52,597 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/sv-benchmarks/c/product-lines/email_spec27_product31.cil.c[61351,61364] [2021-10-28 09:54:52,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:52,644 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:54:52,832 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/sv-benchmarks/c/product-lines/email_spec27_product31.cil.c[61351,61364] [2021-10-28 09:54:52,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:52,885 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:54:52,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52 WrapperNode [2021-10-28 09:54:52,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:52,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:54:52,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:54:52,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:54:52,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52" (1/1) ... [2021-10-28 09:54:52,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52" (1/1) ... [2021-10-28 09:54:53,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:54:53,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:54:53,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:54:53,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:54:53,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52" (1/1) ... [2021-10-28 09:54:53,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52" (1/1) ... [2021-10-28 09:54:53,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52" (1/1) ... [2021-10-28 09:54:53,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52" (1/1) ... [2021-10-28 09:54:53,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52" (1/1) ... [2021-10-28 09:54:53,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52" (1/1) ... [2021-10-28 09:54:53,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52" (1/1) ... [2021-10-28 09:54:53,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:54:53,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:54:53,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:54:53,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:54:53,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52" (1/1) ... [2021-10-28 09:54:53,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:53,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:53,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:53,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:54:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-10-28 09:54:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:54:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:54:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:54:53,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:54:56,216 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:54:56,217 INFO L299 CfgBuilder]: Removed 379 assume(true) statements. [2021-10-28 09:54:56,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:56 BoogieIcfgContainer [2021-10-28 09:54:56,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:54:56,225 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:54:56,225 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:54:56,229 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:54:56,230 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:54:56,231 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:54:51" (1/3) ... [2021-10-28 09:54:56,233 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@185c7bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:54:56, skipping insertion in model container [2021-10-28 09:54:56,233 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:54:56,233 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:52" (2/3) ... [2021-10-28 09:54:56,234 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@185c7bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:54:56, skipping insertion in model container [2021-10-28 09:54:56,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:54:56,235 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:56" (3/3) ... [2021-10-28 09:54:56,237 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec27_product31.cil.c [2021-10-28 09:54:56,309 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:54:56,309 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:54:56,310 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:54:56,310 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:54:56,310 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:54:56,310 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:54:56,311 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:54:56,311 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:54:56,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 583 states, 582 states have (on average 1.738831615120275) internal successors, (1012), 582 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:54:56,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2021-10-28 09:54:56,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:56,441 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:56,453 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:56,453 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:54:56,453 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:54:56,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 583 states, 582 states have (on average 1.738831615120275) internal successors, (1012), 582 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:54:56,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2021-10-28 09:54:56,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:56,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:56,484 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:56,484 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:54:56,492 INFO L791 eck$LassoCheckResult]: Stem: 567#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(29);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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(16);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(21);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(30);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(25);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(30);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(9);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(25);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string89.base, #t~string89.offset, 1);call write~init~int(115, #t~string89.base, 1 + #t~string89.offset, 1);call write~init~int(10, #t~string89.base, 2 + #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 3 + #t~string89.offset, 1);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(10);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(16);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(20);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(21);call #t~string118.base, #t~string118.offset := #Ultimate.allocOnStack(10);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(12);call #t~string124.base, #t~string124.offset := #Ultimate.allocOnStack(10);call #t~string127.base, #t~string127.offset := #Ultimate.allocOnStack(18);call #t~string130.base, #t~string130.offset := #Ultimate.allocOnStack(16);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(21);call #t~string136.base, #t~string136.offset := #Ultimate.allocOnStack(13);call #t~string139.base, #t~string139.offset := #Ultimate.allocOnStack(16);call #t~string142.base, #t~string142.offset := #Ultimate.allocOnStack(25);~__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_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;~__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;~head~0.base, ~head~0.offset := 0, 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0; 491#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; 232#L386true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 460#L394true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 226#L230true 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; 125#L1866true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 15#L1872-2true 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; 153#L1431true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 112#L1437-2true 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; 581#L1866-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 585#L1872-5true 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; 219#L1431-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 435#L1437-5true 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; 220#L1866-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 277#L1872-8true 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; 268#L1431-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 570#L1437-8true setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string18.base, #t~string18.offset;havoc setup_#t~nondet19; 314#L217true havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, 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~5, 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~5;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; 217#L2068-1true [2021-10-28 09:54:56,493 INFO L793 eck$LassoCheckResult]: Loop: 217#L2068-1true assume !false; 480#L1923true assume test_~splverifierCounter~0 < 4; 455#L1924true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 42#L1930true assume !(0 == test_~op1~0); 552#L1943true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet39;havoc test_#t~nondet39; 441#L1948true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 217#L2068-1true [2021-10-28 09:54:56,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:56,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2021-10-28 09:54:56,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:56,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204292941] [2021-10-28 09:54:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:56,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:56,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:56,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:56,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204292941] [2021-10-28 09:54:56,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204292941] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:54:56,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:54:56,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:54:56,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795487437] [2021-10-28 09:54:56,987 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:54:56,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:56,988 INFO L85 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2021-10-28 09:54:56,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:56,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122211182] [2021-10-28 09:54:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:56,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:57,003 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:57,046 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:57,124 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:57,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:57,125 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:57,125 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:57,126 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:54:57,126 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,126 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:57,126 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:57,127 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product31.cil.c_Iteration1_Loop [2021-10-28 09:54:57,127 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:57,127 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:57,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:57,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:57,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:57,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:57,267 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:57,268 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:54:57,270 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,277 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:57,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:57,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:54:57,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:57,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,357 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:54:57,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:57,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:54:57,393 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:54:57,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:57,439 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:57,439 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:57,439 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:57,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:57,440 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:54:57,440 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:57,440 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:57,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product31.cil.c_Iteration1_Loop [2021-10-28 09:54:57,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:57,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:57,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:57,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:57,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:57,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:57,550 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:57,556 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:54:57,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:54:57,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:57,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:57,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:57,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:54:57,589 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:54:57,621 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:54:57,621 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:54:57,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,647 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:54:57,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:54:57,652 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:54:57,652 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:54:57,653 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] [2021-10-28 09:54:57,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:57,688 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:54:57,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:57,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:57,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:54:57,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:58,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:54:58,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:58,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:58,251 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 [2021-10-28 09:54:58,254 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 583 states, 582 states have (on average 1.738831615120275) internal successors, (1012), 582 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:54:58,592 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 583 states, 582 states have (on average 1.738831615120275) internal successors, (1012), 582 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 2588 states and 4472 transitions. Complement of second has 7 states. [2021-10-28 09:54:58,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:54:58,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:54:58,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2550 transitions. [2021-10-28 09:54:58,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2550 transitions. Stem has 18 letters. Loop has 6 letters. [2021-10-28 09:54:58,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:54:58,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2550 transitions. Stem has 24 letters. Loop has 6 letters. [2021-10-28 09:54:58,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:54:58,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2550 transitions. Stem has 18 letters. Loop has 12 letters. [2021-10-28 09:54:58,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:54:58,607 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2588 states and 4472 transitions. [2021-10-28 09:54:58,646 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 423 [2021-10-28 09:54:58,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2588 states to 879 states and 1596 transitions. [2021-10-28 09:54:58,667 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 454 [2021-10-28 09:54:58,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 455 [2021-10-28 09:54:58,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 879 states and 1596 transitions. [2021-10-28 09:54:58,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:54:58,671 INFO L681 BuchiCegarLoop]: Abstraction has 879 states and 1596 transitions. [2021-10-28 09:54:58,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states and 1596 transitions. [2021-10-28 09:54:58,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 456. [2021-10-28 09:54:58,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 456 states have (on average 1.8092105263157894) internal successors, (825), 455 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:54:58,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 825 transitions. [2021-10-28 09:54:58,752 INFO L704 BuchiCegarLoop]: Abstraction has 456 states and 825 transitions. [2021-10-28 09:54:58,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:58,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:54:58,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:54:58,759 INFO L87 Difference]: Start difference. First operand 456 states and 825 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:54:58,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:58,864 INFO L93 Difference]: Finished difference Result 892 states and 1615 transitions. [2021-10-28 09:54:58,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:54:58,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 892 states and 1615 transitions. [2021-10-28 09:54:58,876 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 424 [2021-10-28 09:54:58,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 892 states to 892 states and 1615 transitions. [2021-10-28 09:54:58,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 466 [2021-10-28 09:54:58,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 466 [2021-10-28 09:54:58,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 892 states and 1615 transitions. [2021-10-28 09:54:58,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:54:58,895 INFO L681 BuchiCegarLoop]: Abstraction has 892 states and 1615 transitions. [2021-10-28 09:54:58,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states and 1615 transitions. [2021-10-28 09:54:58,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 455. [2021-10-28 09:54:58,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 455 states have (on average 1.8043956043956044) internal successors, (821), 454 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:54:58,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 821 transitions. [2021-10-28 09:54:58,919 INFO L704 BuchiCegarLoop]: Abstraction has 455 states and 821 transitions. [2021-10-28 09:54:58,919 INFO L587 BuchiCegarLoop]: Abstraction has 455 states and 821 transitions. [2021-10-28 09:54:58,919 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:54:58,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 455 states and 821 transitions. [2021-10-28 09:54:58,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 212 [2021-10-28 09:54:58,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:58,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:58,926 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:58,926 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:58,927 INFO L791 eck$LassoCheckResult]: Stem: 5070#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(29);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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(16);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(21);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(30);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(25);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(30);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(9);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(25);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string89.base, #t~string89.offset, 1);call write~init~int(115, #t~string89.base, 1 + #t~string89.offset, 1);call write~init~int(10, #t~string89.base, 2 + #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 3 + #t~string89.offset, 1);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(10);call #t~string97.base, #t~string97.offset := #Ultimate.allocOnStack(16);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(20);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(21);call #t~string118.base, #t~string118.offset := #Ultimate.allocOnStack(10);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(12);call #t~string124.base, #t~string124.offset := #Ultimate.allocOnStack(10);call #t~string127.base, #t~string127.offset := #Ultimate.allocOnStack(18);call #t~string130.base, #t~string130.offset := #Ultimate.allocOnStack(16);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(21);call #t~string136.base, #t~string136.offset := #Ultimate.allocOnStack(13);call #t~string139.base, #t~string139.offset := #Ultimate.allocOnStack(16);call #t~string142.base, #t~string142.offset := #Ultimate.allocOnStack(25);~__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_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;~__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;~head~0.base, ~head~0.offset := 0, 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0; 5029#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; 5030#L386 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 5001#L394 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 5002#L230 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; 4950#L1866 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 4668#L1872-2 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; 4669#L1431 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4857#L1437-2 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; 4929#L1866-2 assume !(1 == setClientId_~handle); 5067#L1869-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 5068#L1872-5 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; 5049#L1431-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4964#L1437-5 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; 4965#L1866-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 4675#L1872-8 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; 5069#L1431-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4733#L1437-8 setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string18.base, #t~string18.offset;havoc setup_#t~nondet19; 4708#L217 havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, 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~5, 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~5;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; 4709#L2068-1 assume !false; 5017#L1923 [2021-10-28 09:54:58,928 INFO L793 eck$LassoCheckResult]: Loop: 5017#L1923 assume test_~splverifierCounter~0 < 4; 4995#L1924 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 4764#L1930 assume !(0 == test_~op1~0); 4766#L1943 assume !(0 == test_~op2~0); 4977#L1954 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet40;havoc test_#t~nondet40; 4972#L1959 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; 4646#L1431-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 4647#L1437-11 test_~op3~0 := 1; 4901#L2068-1 assume !false; 5017#L1923 [2021-10-28 09:54:58,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:58,929 INFO L85 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2021-10-28 09:54:58,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:58,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646326983] [2021-10-28 09:54:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:58,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:59,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:59,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:59,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646326983] [2021-10-28 09:54:59,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646326983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:54:59,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:54:59,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:54:59,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765143771] [2021-10-28 09:54:59,073 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:54:59,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:59,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2021-10-28 09:54:59,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:59,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381329187] [2021-10-28 09:54:59,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:59,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:59,085 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:59,105 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:59,224 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:59,224 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:59,224 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:59,225 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:59,225 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:54:59,225 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:59,225 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:59,225 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:59,225 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product31.cil.c_Iteration2_Loop [2021-10-28 09:54:59,225 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:59,225 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:59,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,420 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:59,421 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:54:59,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:59,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:59,423 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:59,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:59,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:59,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:54:59,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:59,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:59,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:59,517 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:59,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:54:59,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:54:59,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:59,589 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:54:59,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:59,596 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:59,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:59,596 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:59,596 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:59,596 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:54:59,596 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:59,596 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:59,596 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:59,596 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product31.cil.c_Iteration2_Loop [2021-10-28 09:54:59,597 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:59,597 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:59,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:59,784 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:59,784 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:54:59,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:59,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:59,786 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:59,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:54:59,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:54:59,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:59,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:59,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:59,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:59,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:59,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:59,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:59,814 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:54:59,822 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:54:59,823 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:54:59,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:59,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:59,825 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:59,845 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:54:59,845 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:54:59,845 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:54:59,846 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] [2021-10-28 09:54:59,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:54:59,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:59,889 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:54:59,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:55:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:55:00,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:55:00,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:55:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:55:00,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:55:00,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:55:00,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:55:00,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:55:00,380 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 09:55:00,380 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 455 states and 821 transitions. cyclomatic complexity: 368 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:55:00,418 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 455 states and 821 transitions. cyclomatic complexity: 368. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 883 states and 1601 transitions. Complement of second has 6 states. [2021-10-28 09:55:00,419 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 [2021-10-28 09:55:00,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:55:00,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2021-10-28 09:55:00,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 20 letters. Loop has 9 letters. [2021-10-28 09:55:00,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:55:00,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 29 letters. Loop has 9 letters. [2021-10-28 09:55:00,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:55:00,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 433 transitions. Stem has 20 letters. Loop has 18 letters. [2021-10-28 09:55:00,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:55:00,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 883 states and 1601 transitions. [2021-10-28 09:55:00,439 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:55:00,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 883 states to 0 states and 0 transitions. [2021-10-28 09:55:00,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:55:00,440 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:55:00,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:55:00,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:55:00,440 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:55:00,440 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:55:00,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:55:00,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:55:00,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:55:00,442 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:55:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:55:00,442 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 09:55:00,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:55:00,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 09:55:00,443 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:55:00,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:55:00,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:55:00,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:55:00,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:55:00,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:55:00,444 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:55:00,444 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:55:00,444 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:55:00,444 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:55:00,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:55:00,444 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:55:00,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:55:00,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:55:00 BoogieIcfgContainer [2021-10-28 09:55:00,452 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:55:00,453 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:55:00,453 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:55:00,453 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:55:00,454 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:56" (3/4) ... [2021-10-28 09:55:00,457 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:55:00,457 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:55:00,460 INFO L168 Benchmark]: Toolchain (without parser) took 8716.93 ms. Allocated memory was 94.4 MB in the beginning and 172.0 MB in the end (delta: 77.6 MB). Free memory was 57.3 MB in the beginning and 103.7 MB in the end (delta: -46.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:00,462 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory was 65.6 MB in the beginning and 65.6 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:55:00,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1142.40 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 57.1 MB in the beginning and 62.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:00,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 219.16 ms. Allocated memory is still 113.2 MB. Free memory was 62.9 MB in the beginning and 51.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:00,471 INFO L168 Benchmark]: Boogie Preprocessor took 211.39 ms. Allocated memory is still 113.2 MB. Free memory was 51.7 MB in the beginning and 82.4 MB in the end (delta: -30.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:00,472 INFO L168 Benchmark]: RCFGBuilder took 2901.92 ms. Allocated memory was 113.2 MB in the beginning and 172.0 MB in the end (delta: 58.7 MB). Free memory was 82.4 MB in the beginning and 129.4 MB in the end (delta: -47.0 MB). Peak memory consumption was 54.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:00,473 INFO L168 Benchmark]: BuchiAutomizer took 4227.18 ms. Allocated memory is still 172.0 MB. Free memory was 129.4 MB in the beginning and 103.7 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:55:00,477 INFO L168 Benchmark]: Witness Printer took 4.72 ms. Allocated memory is still 172.0 MB. Free memory is still 103.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:55:00,486 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory was 65.6 MB in the beginning and 65.6 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1142.40 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 57.1 MB in the beginning and 62.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 219.16 ms. Allocated memory is still 113.2 MB. Free memory was 62.9 MB in the beginning and 51.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 211.39 ms. Allocated memory is still 113.2 MB. Free memory was 51.7 MB in the beginning and 82.4 MB in the end (delta: -30.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2901.92 ms. Allocated memory was 113.2 MB in the beginning and 172.0 MB in the end (delta: 58.7 MB). Free memory was 82.4 MB in the beginning and 129.4 MB in the end (delta: -47.0 MB). Peak memory consumption was 54.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4227.18 ms. Allocated memory is still 172.0 MB. Free memory was 129.4 MB in the beginning and 103.7 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.72 ms. Allocated memory is still 172.0 MB. Free memory is still 103.7 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 7 + -2 * splverifierCounter 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 4.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 1.5s. 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: 3227 SDtfs, 2808 SDslu, 4043 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: sat Degree: 0 Time: 95ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:55:00,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fcad91-f02e-4f7f-be4d-005b838f3ff6/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...