./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be --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 c1a514ed3c88dbb6b86d895b5ccbc4ee84ef064cf150167d71ca780388d60956 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:36:28,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:36:28,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:36:29,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:36:29,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:36:29,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:36:29,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:36:29,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:36:29,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:36:29,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:36:29,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:36:29,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:36:29,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:36:29,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:36:29,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:36:29,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:36:29,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:36:29,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:36:29,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:36:29,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:36:29,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:36:29,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:36:29,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:36:29,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:36:29,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:36:29,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:36:29,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:36:29,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:36:29,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:36:29,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:36:29,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:36:29,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:36:29,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:36:29,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:36:29,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:36:29,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:36:29,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:36:29,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:36:29,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:36:29,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:36:29,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:36:29,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:36:29,178 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:36:29,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:36:29,179 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:36:29,180 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:36:29,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:36:29,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:36:29,182 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:36:29,182 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:36:29,182 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:36:29,183 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:36:29,184 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:36:29,184 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:36:29,184 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:36:29,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:36:29,185 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:36:29,185 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:36:29,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:36:29,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:36:29,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:36:29,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:36:29,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:36:29,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:36:29,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:36:29,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:36:29,187 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:36:29,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:36:29,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:36:29,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:36:29,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:36:29,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:36:29,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:36:29,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:36:29,192 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:36:29,192 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_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1a514ed3c88dbb6b86d895b5ccbc4ee84ef064cf150167d71ca780388d60956 [2021-10-21 19:36:29,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:36:29,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:36:29,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:36:29,505 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:36:29,506 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:36:29,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/email_spec3_product13.cil.c [2021-10-21 19:36:29,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/data/68145d251/19a1a568e27d4f3dbeb09e2da36c0799/FLAGfb4ee29a0 [2021-10-21 19:36:30,258 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:36:30,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/sv-benchmarks/c/product-lines/email_spec3_product13.cil.c [2021-10-21 19:36:30,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/data/68145d251/19a1a568e27d4f3dbeb09e2da36c0799/FLAGfb4ee29a0 [2021-10-21 19:36:30,454 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/data/68145d251/19a1a568e27d4f3dbeb09e2da36c0799 [2021-10-21 19:36:30,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:36:30,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:36:30,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:36:30,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:36:30,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:36:30,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29109dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30, skipping insertion in model container [2021-10-21 19:36:30,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:36:30,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:36:31,224 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_97263b50-3b1e-4458-830d-da400628beda/sv-benchmarks/c/product-lines/email_spec3_product13.cil.c[62004,62017] [2021-10-21 19:36:31,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:36:31,241 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:36:31,427 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_97263b50-3b1e-4458-830d-da400628beda/sv-benchmarks/c/product-lines/email_spec3_product13.cil.c[62004,62017] [2021-10-21 19:36:31,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:36:31,478 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:36:31,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31 WrapperNode [2021-10-21 19:36:31,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:36:31,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:36:31,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:36:31,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:36:31,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31" (1/1) ... [2021-10-21 19:36:31,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31" (1/1) ... [2021-10-21 19:36:31,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:36:31,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:36:31,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:36:31,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:36:31,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31" (1/1) ... [2021-10-21 19:36:31,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31" (1/1) ... [2021-10-21 19:36:31,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31" (1/1) ... [2021-10-21 19:36:31,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31" (1/1) ... [2021-10-21 19:36:31,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31" (1/1) ... [2021-10-21 19:36:31,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31" (1/1) ... [2021-10-21 19:36:31,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31" (1/1) ... [2021-10-21 19:36:31,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:36:31,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:36:31,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:36:31,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:36:31,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31" (1/1) ... [2021-10-21 19:36:31,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:31,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:31,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:31,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:36:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-10-21 19:36:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:36:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:36:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:36:31,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:36:34,026 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:36:34,026 INFO L299 CfgBuilder]: Removed 255 assume(true) statements. [2021-10-21 19:36:34,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:34 BoogieIcfgContainer [2021-10-21 19:36:34,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:36:34,032 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:36:34,032 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:36:34,036 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:36:34,036 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:36:34,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:36:30" (1/3) ... [2021-10-21 19:36:34,038 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1199a673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:36:34, skipping insertion in model container [2021-10-21 19:36:34,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:36:34,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:31" (2/3) ... [2021-10-21 19:36:34,039 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1199a673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:36:34, skipping insertion in model container [2021-10-21 19:36:34,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:36:34,040 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:34" (3/3) ... [2021-10-21 19:36:34,041 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec3_product13.cil.c [2021-10-21 19:36:34,111 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:36:34,111 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:36:34,111 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:36:34,112 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:36:34,112 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:36:34,112 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:36:34,112 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:36:34,112 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:36:34,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 417 states, 416 states have (on average 1.7620192307692308) internal successors, (733), 416 states have internal predecessors, (733), 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) [2021-10-21 19:36:34,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 208 [2021-10-21 19:36:34,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:36:34,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:36:34,215 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:34,215 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:36:34,215 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:36:34,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 417 states, 416 states have (on average 1.7620192307692308) internal successors, (733), 416 states have internal predecessors, (733), 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) [2021-10-21 19:36:34,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 208 [2021-10-21 19:36:34,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:36:34,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:36:34,243 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:34,243 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:36:34,250 INFO L791 eck$LassoCheckResult]: Stem: 408#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(16);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(15);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(16);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(44);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(44);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(11);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(19);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string50.base, #t~string50.offset, 1);call write~init~int(100, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(10, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string53.base, #t~string53.offset, 1);call write~init~int(100, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(10, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(10);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(16);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(20);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(10);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(12);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(10);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(18);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(13);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(16);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(25);call #t~string116.base, #t~string116.offset := #Ultimate.allocOnStack(30);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(9);call #t~string118.base, #t~string118.offset := #Ultimate.allocOnStack(21);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(30);call #t~string120.base, #t~string120.offset := #Ultimate.allocOnStack(9);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(21);call #t~string125.base, #t~string125.offset := #Ultimate.allocOnStack(30);call #t~string126.base, #t~string126.offset := #Ultimate.allocOnStack(9);call #t~string127.base, #t~string127.offset := #Ultimate.allocOnStack(25);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(30);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(9);call #t~string130.base, #t~string130.offset := #Ultimate.allocOnStack(25);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string135.base, #t~string135.offset, 1);call write~init~int(115, #t~string135.base, 1 + #t~string135.offset, 1);call write~init~int(10, #t~string135.base, 2 + #t~string135.offset, 1);call write~init~int(0, #t~string135.base, 3 + #t~string135.offset, 1);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~sent_signed~0 := -1;~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;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0; 346#L-1true havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~2, main_~tmp~3;havoc main_~retValue_acc~2;havoc main_~tmp~3; 37#L85true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 214#L93true main_#t~ret45 := valid_product_#res;main_~tmp~3 := main_#t~ret45;havoc main_#t~ret45; 238#L539true assume 0 != main_~tmp~3;havoc setup_#t~nondet40, setup_#t~nondet42, setup_#t~nondet44, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.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_tmp2~1.base, setup_~__cil_tmp2~1.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; 405#L2846true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 8#L2852-2true 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; 395#L2411true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 380#L2417-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string39.base, #t~string39.offset;havoc setup_#t~nondet40;~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; 206#L2846-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 298#L2852-5true 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; 81#L2411-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 306#L2417-5true setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset := #t~string41.base, #t~string41.offset;havoc setup_#t~nondet42;~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; 133#L2846-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 151#L2852-8true 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; 143#L2411-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 89#L2417-8true setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string43.base, #t~string43.offset;havoc setup_#t~nondet44; 163#L526true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, 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~1, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~1, 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~1;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~1;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; 43#L354-1true [2021-10-21 19:36:34,250 INFO L793 eck$LassoCheckResult]: Loop: 43#L354-1true assume !false; 154#L212true assume test_~splverifierCounter~0 < 4; 94#L213true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 417#L219true assume !(0 == test_~op1~0); 311#L232true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet22;havoc test_#t~nondet22; 168#L237true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 43#L354-1true [2021-10-21 19:36:34,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:34,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2021-10-21 19:36:34,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:34,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728607175] [2021-10-21 19:36:34,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:34,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:34,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:34,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:34,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728607175] [2021-10-21 19:36:34,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728607175] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:36:34,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:36:34,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:36:34,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322630440] [2021-10-21 19:36:34,766 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:36:34,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:34,777 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2021-10-21 19:36:34,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:34,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100774345] [2021-10-21 19:36:34,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:34,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:34,797 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:34,853 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:34,940 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:36:34,940 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:36:34,941 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:36:34,941 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:36:34,941 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:36:34,941 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:34,941 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:36:34,942 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:36:34,942 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec3_product13.cil.c_Iteration1_Loop [2021-10-21 19:36:34,942 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:36:34,942 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:36:34,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:34,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:34,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:34,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:35,058 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:36:35,058 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:36:35,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:35,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:35,067 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:35,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:36:35,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:36:35,078 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:36:35,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:35,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:35,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:35,140 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:35,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:36:35,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:36:35,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:36:35,226 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:36:35,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:35,263 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:36:35,263 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:36:35,263 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:36:35,263 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:36:35,264 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:36:35,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:35,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:36:35,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:36:35,264 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec3_product13.cil.c_Iteration1_Loop [2021-10-21 19:36:35,264 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:36:35,264 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:36:35,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:35,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:35,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:35,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:35,375 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:36:35,381 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:36:35,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:35,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:35,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:35,393 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 [2021-10-21 19:36:35,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:36:35,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:36:35,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:36:35,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:36:35,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:36:35,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:36:35,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:36:35,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:36:35,421 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:36:35,455 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:36:35,455 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:36:35,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:35,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:35,465 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:35,487 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:36:35,487 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:36:35,488 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:36:35,488 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] [2021-10-21 19:36:35,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:36:35,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:35,532 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:36:35,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:35,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:36:35,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:35,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:36:35,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:35,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:35,960 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 [2021-10-21 19:36:35,963 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 417 states, 416 states have (on average 1.7620192307692308) internal successors, (733), 416 states have internal predecessors, (733), 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) [2021-10-21 19:36:36,204 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 417 states, 416 states have (on average 1.7620192307692308) internal successors, (733), 416 states have internal predecessors, (733), 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 1762 states and 3080 transitions. Complement of second has 7 states. [2021-10-21 19:36:36,205 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 [2021-10-21 19:36:36,206 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) [2021-10-21 19:36:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1720 transitions. [2021-10-21 19:36:36,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1720 transitions. Stem has 18 letters. Loop has 6 letters. [2021-10-21 19:36:36,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:36:36,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1720 transitions. Stem has 24 letters. Loop has 6 letters. [2021-10-21 19:36:36,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:36:36,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1720 transitions. Stem has 18 letters. Loop has 12 letters. [2021-10-21 19:36:36,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:36:36,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1762 states and 3080 transitions. [2021-10-21 19:36:36,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 415 [2021-10-21 19:36:36,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1762 states to 863 states and 1568 transitions. [2021-10-21 19:36:36,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 446 [2021-10-21 19:36:36,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 447 [2021-10-21 19:36:36,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 863 states and 1568 transitions. [2021-10-21 19:36:36,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:36:36,277 INFO L681 BuchiCegarLoop]: Abstraction has 863 states and 1568 transitions. [2021-10-21 19:36:36,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states and 1568 transitions. [2021-10-21 19:36:36,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 448. [2021-10-21 19:36:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 448 states have (on average 1.8102678571428572) internal successors, (811), 447 states have internal predecessors, (811), 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) [2021-10-21 19:36:36,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 811 transitions. [2021-10-21 19:36:36,369 INFO L704 BuchiCegarLoop]: Abstraction has 448 states and 811 transitions. [2021-10-21 19:36:36,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:36,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:36:36,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:36:36,375 INFO L87 Difference]: Start difference. First operand 448 states and 811 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) [2021-10-21 19:36:36,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:36,432 INFO L93 Difference]: Finished difference Result 876 states and 1587 transitions. [2021-10-21 19:36:36,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:36:36,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 876 states and 1587 transitions. [2021-10-21 19:36:36,442 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 416 [2021-10-21 19:36:36,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 876 states to 876 states and 1587 transitions. [2021-10-21 19:36:36,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 458 [2021-10-21 19:36:36,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 458 [2021-10-21 19:36:36,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 876 states and 1587 transitions. [2021-10-21 19:36:36,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:36:36,484 INFO L681 BuchiCegarLoop]: Abstraction has 876 states and 1587 transitions. [2021-10-21 19:36:36,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states and 1587 transitions. [2021-10-21 19:36:36,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 447. [2021-10-21 19:36:36,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 447 states have (on average 1.8053691275167785) internal successors, (807), 446 states have internal predecessors, (807), 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) [2021-10-21 19:36:36,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 807 transitions. [2021-10-21 19:36:36,535 INFO L704 BuchiCegarLoop]: Abstraction has 447 states and 807 transitions. [2021-10-21 19:36:36,535 INFO L587 BuchiCegarLoop]: Abstraction has 447 states and 807 transitions. [2021-10-21 19:36:36,535 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:36:36,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 447 states and 807 transitions. [2021-10-21 19:36:36,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 208 [2021-10-21 19:36:36,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:36:36,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:36:36,552 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] [2021-10-21 19:36:36,553 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:36,553 INFO L791 eck$LassoCheckResult]: Stem: 4048#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(16);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(15);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(16);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(44);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(44);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(11);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(19);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string50.base, #t~string50.offset, 1);call write~init~int(100, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(10, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string53.base, #t~string53.offset, 1);call write~init~int(100, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(10, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(10);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(16);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(20);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(10);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(12);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(10);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(18);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(13);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(16);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(25);call #t~string116.base, #t~string116.offset := #Ultimate.allocOnStack(30);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(9);call #t~string118.base, #t~string118.offset := #Ultimate.allocOnStack(21);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(30);call #t~string120.base, #t~string120.offset := #Ultimate.allocOnStack(9);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(21);call #t~string125.base, #t~string125.offset := #Ultimate.allocOnStack(30);call #t~string126.base, #t~string126.offset := #Ultimate.allocOnStack(9);call #t~string127.base, #t~string127.offset := #Ultimate.allocOnStack(25);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(30);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(9);call #t~string130.base, #t~string130.offset := #Ultimate.allocOnStack(25);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string135.base, #t~string135.offset, 1);call write~init~int(115, #t~string135.base, 1 + #t~string135.offset, 1);call write~init~int(10, #t~string135.base, 2 + #t~string135.offset, 1);call write~init~int(0, #t~string135.base, 3 + #t~string135.offset, 1);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~sent_signed~0 := -1;~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;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0; 4009#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~2, main_~tmp~3;havoc main_~retValue_acc~2;havoc main_~tmp~3; 3725#L85 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 3713#L93 main_#t~ret45 := valid_product_#res;main_~tmp~3 := main_#t~ret45;havoc main_#t~ret45; 3714#L539 assume 0 != main_~tmp~3;havoc setup_#t~nondet40, setup_#t~nondet42, setup_#t~nondet44, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.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_tmp2~1.base, setup_~__cil_tmp2~1.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; 3781#L2846 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 3627#L2852-2 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; 3628#L2411 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 3603#L2417-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string39.base, #t~string39.offset;havoc setup_#t~nondet40;~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; 3691#L2846-2 assume !(1 == setClientId_~handle); 3692#L2849-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 3756#L2852-5 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; 3901#L2411-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 3825#L2417-5 setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset := #t~string41.base, #t~string41.offset;havoc setup_#t~nondet42;~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; 3928#L2846-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 3676#L2852-8 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; 4024#L2411-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 3702#L2417-8 setup_~__cil_tmp3~0.base, setup_~__cil_tmp3~0.offset := #t~string43.base, #t~string43.offset;havoc setup_#t~nondet44; 3921#L526 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, 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~1, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~1, 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~1;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~1;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; 4038#L354-1 assume !false; 3751#L212 [2021-10-21 19:36:36,553 INFO L793 eck$LassoCheckResult]: Loop: 3751#L212 assume test_~splverifierCounter~0 < 4; 3929#L213 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 3930#L219 assume !(0 == test_~op1~0); 3830#L232 assume !(0 == test_~op2~0); 3951#L243 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet23;havoc test_#t~nondet23; 3945#L248 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; 3946#L2411-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 3813#L2417-11 test_~op3~0 := 1; 3750#L354-1 assume !false; 3751#L212 [2021-10-21 19:36:36,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:36,554 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2021-10-21 19:36:36,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:36,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376338238] [2021-10-21 19:36:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:36,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:36,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-21 19:36:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:36,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:36,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:36,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376338238] [2021-10-21 19:36:36,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376338238] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:36:36,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:36:36,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:36:36,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056234044] [2021-10-21 19:36:36,709 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:36:36,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:36,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2021-10-21 19:36:36,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:36,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798308979] [2021-10-21 19:36:36,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:36,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:36,723 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:36,750 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:36,878 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:36:36,878 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:36:36,878 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:36:36,878 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:36:36,878 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:36:36,879 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:36,879 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:36:36,879 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:36:36,879 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec3_product13.cil.c_Iteration2_Loop [2021-10-21 19:36:36,879 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:36:36,879 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:36:36,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:36,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:36,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:36,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:36,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:36,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:36,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:37,059 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:36:37,060 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:36:37,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:37,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:37,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:37,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:36:37,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:36:37,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:36:37,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:37,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:37,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:37,133 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:37,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:36:37,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:36:37,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:36:37,172 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:36:37,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:37,178 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:36:37,178 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:36:37,178 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:36:37,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:36:37,178 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:36:37,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:37,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:36:37,179 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:36:37,179 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec3_product13.cil.c_Iteration2_Loop [2021-10-21 19:36:37,179 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:36:37,179 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:36:37,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:37,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:37,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:37,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:37,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:37,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:37,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:37,350 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:36:37,351 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:36:37,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:37,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:37,355 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:37,382 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 [2021-10-21 19:36:37,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:36:37,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:36:37,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:36:37,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:36:37,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:36:37,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:36:37,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:36:37,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:36:37,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:36:37,416 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:36:37,416 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:36:37,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:37,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:37,418 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:37,420 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:36:37,420 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:36:37,420 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:36:37,420 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] [2021-10-21 19:36:37,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:36:37,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:37,454 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:36:37,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:37,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:36:37,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:37,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:36:37,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:37,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:37,889 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 [2021-10-21 19:36:37,889 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 447 states and 807 transitions. cyclomatic complexity: 362 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) [2021-10-21 19:36:37,975 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 447 states and 807 transitions. cyclomatic complexity: 362. 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 867 states and 1573 transitions. Complement of second has 6 states. [2021-10-21 19:36:37,975 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 [2021-10-21 19:36:37,976 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) [2021-10-21 19:36:37,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2021-10-21 19:36:37,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 426 transitions. Stem has 20 letters. Loop has 9 letters. [2021-10-21 19:36:37,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:36:37,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 426 transitions. Stem has 29 letters. Loop has 9 letters. [2021-10-21 19:36:37,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:36:37,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 426 transitions. Stem has 20 letters. Loop has 18 letters. [2021-10-21 19:36:37,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:36:37,982 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 867 states and 1573 transitions. [2021-10-21 19:36:37,992 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:36:37,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 867 states to 0 states and 0 transitions. [2021-10-21 19:36:37,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:36:37,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:36:37,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:36:37,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:36:37,993 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:36:37,993 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:36:37,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:37,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:36:37,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:36:37,994 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) [2021-10-21 19:36:37,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:37,995 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-21 19:36:37,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:36:37,995 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-21 19:36:37,995 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:36:37,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:36:37,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:36:37,995 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:36:37,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:36:37,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:36:37,996 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:36:37,996 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:36:37,996 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:36:37,996 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:36:37,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:36:37,996 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:36:37,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:36:38,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:36:38 BoogieIcfgContainer [2021-10-21 19:36:38,003 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:36:38,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:36:38,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:36:38,003 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:36:38,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:34" (3/4) ... [2021-10-21 19:36:38,006 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:36:38,006 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:36:38,009 INFO L168 Benchmark]: Toolchain (without parser) took 7547.96 ms. Allocated memory was 86.0 MB in the beginning and 165.7 MB in the end (delta: 79.7 MB). Free memory was 44.6 MB in the beginning and 112.9 MB in the end (delta: -68.3 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:38,009 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory is still 63.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:36:38,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1016.99 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 44.4 MB in the beginning and 65.0 MB in the end (delta: -20.7 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:38,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 170.07 ms. Allocated memory is still 117.4 MB. Free memory was 65.0 MB in the beginning and 56.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:38,017 INFO L168 Benchmark]: Boogie Preprocessor took 126.76 ms. Allocated memory is still 117.4 MB. Free memory was 56.6 MB in the beginning and 50.7 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:38,018 INFO L168 Benchmark]: RCFGBuilder took 2251.83 ms. Allocated memory was 117.4 MB in the beginning and 165.7 MB in the end (delta: 48.2 MB). Free memory was 50.3 MB in the beginning and 114.7 MB in the end (delta: -64.3 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:38,018 INFO L168 Benchmark]: BuchiAutomizer took 3970.96 ms. Allocated memory is still 165.7 MB. Free memory was 114.7 MB in the beginning and 113.9 MB in the end (delta: 776.3 kB). Peak memory consumption was 630.5 kB. Max. memory is 16.1 GB. [2021-10-21 19:36:38,019 INFO L168 Benchmark]: Witness Printer took 3.45 ms. Allocated memory is still 165.7 MB. Free memory is still 112.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:36:38,028 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2021-10-21 19:36:38,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory is still 63.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1016.99 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 44.4 MB in the beginning and 65.0 MB in the end (delta: -20.7 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 170.07 ms. Allocated memory is still 117.4 MB. Free memory was 65.0 MB in the beginning and 56.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 126.76 ms. Allocated memory is still 117.4 MB. Free memory was 56.6 MB in the beginning and 50.7 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2251.83 ms. Allocated memory was 117.4 MB in the beginning and 165.7 MB in the end (delta: 48.2 MB). Free memory was 50.3 MB in the beginning and 114.7 MB in the end (delta: -64.3 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3970.96 ms. Allocated memory is still 165.7 MB. Free memory was 114.7 MB in the beginning and 113.9 MB in the end (delta: 776.3 kB). Peak memory consumption was 630.5 kB. Max. memory is 16.1 GB. * Witness Printer took 3.45 ms. Allocated memory is still 165.7 MB. Free memory is still 112.9 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 3.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 127.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 844 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 447 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2644 SDtfs, 2231 SDslu, 3179 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.9ms 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: 103ms 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! [2021-10-21 19:36:38,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97263b50-3b1e-4458-830d-da400628beda/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...