./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f70ac21a1decd51d5f9571a5be4450629a9ca28f5aa1158e9564f33ba44bf6ef --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:16:37,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:16:37,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:16:37,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:16:37,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:16:37,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:16:37,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:16:37,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:16:37,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:16:37,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:16:37,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:16:37,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:16:37,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:16:37,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:16:37,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:16:37,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:16:37,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:16:37,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:16:37,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:16:37,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:16:37,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:16:37,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:16:37,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:16:37,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:16:37,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:16:37,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:16:37,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:16:37,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:16:37,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:16:37,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:16:37,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:16:37,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:16:37,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:16:37,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:16:37,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:16:37,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:16:37,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:16:37,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:16:37,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:16:37,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:16:37,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:16:37,177 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:16:37,193 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:16:37,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:16:37,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:16:37,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:16:37,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:16:37,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:16:37,194 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:16:37,194 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:16:37,194 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:16:37,194 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:16:37,194 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:16:37,195 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:16:37,195 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:16:37,195 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:16:37,195 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:16:37,195 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:16:37,195 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:16:37,195 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:16:37,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:16:37,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:16:37,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:16:37,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:16:37,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:16:37,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:16:37,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:16:37,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:16:37,197 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:16:37,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:16:37,197 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:16:37,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:16:37,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:16:37,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:16:37,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:16:37,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:16:37,198 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:16:37,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:16:37,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:16:37,198 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:16:37,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:16:37,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:16:37,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:16:37,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70ac21a1decd51d5f9571a5be4450629a9ca28f5aa1158e9564f33ba44bf6ef [2022-12-14 14:16:37,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:16:37,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:16:37,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:16:37,382 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:16:37,382 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:16:37,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec7_product18.cil.c [2022-12-14 14:16:39,884 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:16:40,137 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:16:40,137 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c [2022-12-14 14:16:40,148 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/data/a4be2243c/5b75cb01bdf54177aa3502f57061d807/FLAG4f16fef89 [2022-12-14 14:16:40,441 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/data/a4be2243c/5b75cb01bdf54177aa3502f57061d807 [2022-12-14 14:16:40,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:16:40,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:16:40,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:16:40,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:16:40,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:16:40,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:40,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a10da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40, skipping insertion in model container [2022-12-14 14:16:40,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:40,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:16:40,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:16:40,743 WARN L237 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_2053b7bf-5b15-4476-99f0-980325077f6a/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c[45803,45816] [2022-12-14 14:16:40,769 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,771 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,774 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,798 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,800 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,808 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:16:40,832 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:16:40,910 WARN L237 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_2053b7bf-5b15-4476-99f0-980325077f6a/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c[45803,45816] [2022-12-14 14:16:40,913 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,914 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,917 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,926 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,928 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,932 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:16:40,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:16:40,964 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:16:40,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40 WrapperNode [2022-12-14 14:16:40,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:16:40,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:16:40,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:16:40,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:16:40,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:40,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:41,044 INFO L138 Inliner]: procedures = 127, calls = 196, calls flagged for inlining = 59, calls inlined = 50, statements flattened = 900 [2022-12-14 14:16:41,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:16:41,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:16:41,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:16:41,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:16:41,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:41,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:41,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:41,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:41,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:41,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:41,093 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:41,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:41,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:16:41,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:16:41,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:16:41,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:16:41,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (1/1) ... [2022-12-14 14:16:41,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:16:41,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:16:41,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:16:41,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:16:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 14:16:41,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 14:16:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 14:16:41,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 14:16:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 14:16:41,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 14:16:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 14:16:41,173 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 14:16:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 14:16:41,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 14:16:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 14:16:41,173 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 14:16:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 14:16:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 14:16:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 14:16:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 14:16:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 14:16:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:16:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 14:16:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 14:16:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 14:16:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 14:16:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 14:16:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 14:16:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 14:16:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 14:16:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 14:16:41,176 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 14:16:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 14:16:41,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 14:16:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 14:16:41,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 14:16:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:16:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 14:16:41,176 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 14:16:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:16:41,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:16:41,317 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:16:41,319 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:16:41,810 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:16:42,045 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:16:42,045 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:16:42,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:16:42 BoogieIcfgContainer [2022-12-14 14:16:42,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:16:42,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:16:42,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:16:42,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:16:42,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:16:40" (1/3) ... [2022-12-14 14:16:42,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb4628a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:16:42, skipping insertion in model container [2022-12-14 14:16:42,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:16:40" (2/3) ... [2022-12-14 14:16:42,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb4628a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:16:42, skipping insertion in model container [2022-12-14 14:16:42,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:16:42" (3/3) ... [2022-12-14 14:16:42,053 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product18.cil.c [2022-12-14 14:16:42,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:16:42,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:16:42,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:16:42,107 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@510ea20f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:16:42,107 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:16:42,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 86 states have (on average 1.372093023255814) internal successors, (118), 88 states have internal predecessors, (118), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-12-14 14:16:42,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-14 14:16:42,118 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:42,118 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:16:42,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:16:42,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:42,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1727596128, now seen corresponding path program 1 times [2022-12-14 14:16:42,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:42,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587163191] [2022-12-14 14:16:42,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:42,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:42,324 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:16:42,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:42,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587163191] [2022-12-14 14:16:42,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587163191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:42,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:42,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:16:42,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734426829] [2022-12-14 14:16:42,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:42,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:16:42,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:42,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:16:42,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:16:42,352 INFO L87 Difference]: Start difference. First operand has 142 states, 86 states have (on average 1.372093023255814) internal successors, (118), 88 states have internal predecessors, (118), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:16:42,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:42,445 INFO L93 Difference]: Finished difference Result 201 states and 266 transitions. [2022-12-14 14:16:42,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:16:42,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 53 [2022-12-14 14:16:42,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:42,453 INFO L225 Difference]: With dead ends: 201 [2022-12-14 14:16:42,454 INFO L226 Difference]: Without dead ends: 139 [2022-12-14 14:16:42,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:16:42,458 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:42,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:16:42,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-14 14:16:42,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-12-14 14:16:42,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 85 states have internal predecessors, (112), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-12-14 14:16:42,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 187 transitions. [2022-12-14 14:16:42,493 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 187 transitions. Word has length 53 [2022-12-14 14:16:42,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:42,495 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 187 transitions. [2022-12-14 14:16:42,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:16:42,495 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 187 transitions. [2022-12-14 14:16:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 14:16:42,497 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:42,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:16:42,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:16:42,497 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:16:42,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:42,498 INFO L85 PathProgramCache]: Analyzing trace with hash 2097849966, now seen corresponding path program 1 times [2022-12-14 14:16:42,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:42,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338190588] [2022-12-14 14:16:42,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:42,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:42,614 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:16:42,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:42,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338190588] [2022-12-14 14:16:42,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338190588] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:42,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:42,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:16:42,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078368464] [2022-12-14 14:16:42,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:42,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:16:42,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:42,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:16:42,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:16:42,617 INFO L87 Difference]: Start difference. First operand 139 states and 187 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:16:42,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:42,709 INFO L93 Difference]: Finished difference Result 197 states and 254 transitions. [2022-12-14 14:16:42,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:16:42,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 54 [2022-12-14 14:16:42,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:42,712 INFO L225 Difference]: With dead ends: 197 [2022-12-14 14:16:42,712 INFO L226 Difference]: Without dead ends: 141 [2022-12-14 14:16:42,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:16:42,714 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:42,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:16:42,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-14 14:16:42,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2022-12-14 14:16:42,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 87 states have internal predecessors, (114), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-12-14 14:16:42,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 189 transitions. [2022-12-14 14:16:42,731 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 189 transitions. Word has length 54 [2022-12-14 14:16:42,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:42,731 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 189 transitions. [2022-12-14 14:16:42,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:16:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 189 transitions. [2022-12-14 14:16:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 14:16:42,734 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:42,734 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:16:42,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:16:42,734 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:16:42,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:42,735 INFO L85 PathProgramCache]: Analyzing trace with hash -104687514, now seen corresponding path program 1 times [2022-12-14 14:16:42,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:42,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158479092] [2022-12-14 14:16:42,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:42,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:42,830 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:16:42,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:42,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158479092] [2022-12-14 14:16:42,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158479092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:16:42,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:16:42,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:16:42,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750669581] [2022-12-14 14:16:42,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:16:42,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:16:42,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:16:42,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:16:42,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:16:42,832 INFO L87 Difference]: Start difference. First operand 141 states and 189 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:16:42,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:16:42,916 INFO L93 Difference]: Finished difference Result 312 states and 437 transitions. [2022-12-14 14:16:42,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:16:42,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 59 [2022-12-14 14:16:42,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:16:42,919 INFO L225 Difference]: With dead ends: 312 [2022-12-14 14:16:42,919 INFO L226 Difference]: Without dead ends: 189 [2022-12-14 14:16:42,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:16:42,921 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 57 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:16:42,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 337 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:16:42,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-12-14 14:16:42,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 184. [2022-12-14 14:16:42,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 118 states have (on average 1.4152542372881356) internal successors, (167), 119 states have internal predecessors, (167), 49 states have call successors, (49), 16 states have call predecessors, (49), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-12-14 14:16:42,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 264 transitions. [2022-12-14 14:16:42,941 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 264 transitions. Word has length 59 [2022-12-14 14:16:42,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:16:42,941 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 264 transitions. [2022-12-14 14:16:42,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 14:16:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 264 transitions. [2022-12-14 14:16:42,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 14:16:42,945 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:16:42,945 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:16:42,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:16:42,945 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:16:42,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:16:42,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1951678475, now seen corresponding path program 1 times [2022-12-14 14:16:42,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:16:42,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161038148] [2022-12-14 14:16:42,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:42,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:16:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:43,081 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:16:43,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:16:43,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161038148] [2022-12-14 14:16:43,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161038148] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:16:43,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840048210] [2022-12-14 14:16:43,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:16:43,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:16:43,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:16:43,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:16:43,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:16:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:16:43,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:16:43,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:16:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:16:43,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:16:43,389 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:16:43,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840048210] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:16:43,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1535315905] [2022-12-14 14:16:43,408 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2022-12-14 14:16:43,408 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:16:43,412 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:16:43,417 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:16:43,418 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:17:07,952 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-12-14 14:17:08,230 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 14:17:08,519 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 257 for LOIs [2022-12-14 14:17:10,117 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 235 for LOIs [2022-12-14 14:17:10,155 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 259 for LOIs [2022-12-14 14:17:19,611 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 249 for LOIs [2022-12-14 14:17:19,643 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 249 for LOIs [2022-12-14 14:17:19,681 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 449 for LOIs [2022-12-14 14:17:20,313 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:18:35,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1535315905] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:18:35,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:18:35,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [4, 4, 4] total 48 [2022-12-14 14:18:35,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612884455] [2022-12-14 14:18:35,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:18:35,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-14 14:18:35,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:18:35,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-14 14:18:35,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=2123, Unknown=0, NotChecked=0, Total=2256 [2022-12-14 14:18:35,821 INFO L87 Difference]: Start difference. First operand 184 states and 264 transitions. Second operand has 43 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 26 states have internal predecessors, (30), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 14:19:06,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:19:06,027 INFO L93 Difference]: Finished difference Result 548 states and 860 transitions. [2022-12-14 14:19:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-14 14:19:06,028 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 26 states have internal predecessors, (30), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 60 [2022-12-14 14:19:06,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:19:06,031 INFO L225 Difference]: With dead ends: 548 [2022-12-14 14:19:06,031 INFO L226 Difference]: Without dead ends: 382 [2022-12-14 14:19:06,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 92.1s TimeCoverageRelationStatistics Valid=180, Invalid=2682, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 14:19:06,033 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 345 mSDsluCounter, 3380 mSDsCounter, 0 mSdLazyCounter, 4561 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 4595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 4561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:19:06,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 3604 Invalid, 4595 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 4561 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2022-12-14 14:19:06,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-12-14 14:19:06,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 286. [2022-12-14 14:19:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 204 states have (on average 1.4705882352941178) internal successors, (300), 206 states have internal predecessors, (300), 59 states have call successors, (59), 23 states have call predecessors, (59), 22 states have return successors, (59), 56 states have call predecessors, (59), 58 states have call successors, (59) [2022-12-14 14:19:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 418 transitions. [2022-12-14 14:19:06,173 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 418 transitions. Word has length 60 [2022-12-14 14:19:06,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:19:06,174 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 418 transitions. [2022-12-14 14:19:06,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 26 states have internal predecessors, (30), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 14:19:06,174 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 418 transitions. [2022-12-14 14:19:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 14:19:06,175 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:19:06,175 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:19:06,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:19:06,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:19:06,377 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:19:06,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:19:06,379 INFO L85 PathProgramCache]: Analyzing trace with hash 904164375, now seen corresponding path program 1 times [2022-12-14 14:19:06,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:19:06,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637268193] [2022-12-14 14:19:06,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:19:06,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:19:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:19:06,440 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:19:06,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:19:06,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637268193] [2022-12-14 14:19:06,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637268193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:19:06,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:19:06,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:19:06,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716304890] [2022-12-14 14:19:06,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:19:06,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:19:06,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:19:06,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:19:06,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:19:06,443 INFO L87 Difference]: Start difference. First operand 286 states and 418 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:19:06,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:19:06,748 INFO L93 Difference]: Finished difference Result 645 states and 970 transitions. [2022-12-14 14:19:06,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:19:06,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 65 [2022-12-14 14:19:06,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:19:06,752 INFO L225 Difference]: With dead ends: 645 [2022-12-14 14:19:06,752 INFO L226 Difference]: Without dead ends: 401 [2022-12-14 14:19:06,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:19:06,753 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 55 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:19:06,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 347 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:19:06,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-12-14 14:19:06,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 394. [2022-12-14 14:19:06,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 287 states have (on average 1.4982578397212543) internal successors, (430), 289 states have internal predecessors, (430), 84 states have call successors, (84), 23 states have call predecessors, (84), 22 states have return successors, (84), 81 states have call predecessors, (84), 83 states have call successors, (84) [2022-12-14 14:19:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 598 transitions. [2022-12-14 14:19:06,937 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 598 transitions. Word has length 65 [2022-12-14 14:19:06,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:19:06,937 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 598 transitions. [2022-12-14 14:19:06,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 14:19:06,938 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 598 transitions. [2022-12-14 14:19:06,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 14:19:06,939 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:19:06,939 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:19:06,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:19:06,939 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:19:06,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:19:06,939 INFO L85 PathProgramCache]: Analyzing trace with hash -329986647, now seen corresponding path program 1 times [2022-12-14 14:19:06,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:19:06,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077876711] [2022-12-14 14:19:06,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:19:06,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:19:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:19:07,044 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:19:07,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:19:07,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077876711] [2022-12-14 14:19:07,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077876711] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:19:07,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971915536] [2022-12-14 14:19:07,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:19:07,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:19:07,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:19:07,047 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:19:07,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:19:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:19:07,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:19:07,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:19:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:19:07,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:19:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:19:07,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971915536] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:19:07,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1804648765] [2022-12-14 14:19:07,272 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-12-14 14:19:07,272 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:19:07,272 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:19:07,272 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:19:07,272 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:19:33,591 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 14:19:33,871 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-12-14 14:19:34,231 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 252 for LOIs [2022-12-14 14:19:35,713 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 230 for LOIs [2022-12-14 14:19:35,747 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 252 for LOIs [2022-12-14 14:19:45,868 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 244 for LOIs [2022-12-14 14:19:45,898 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 244 for LOIs [2022-12-14 14:19:45,938 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 448 for LOIs [2022-12-14 14:19:46,565 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:21:01,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1804648765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:01,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:21:01,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [4, 4, 4] total 52 [2022-12-14 14:21:01,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415458681] [2022-12-14 14:21:01,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:01,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-14 14:21:01,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:01,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-14 14:21:01,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=2485, Unknown=0, NotChecked=0, Total=2652 [2022-12-14 14:21:01,287 INFO L87 Difference]: Start difference. First operand 394 states and 598 transitions. Second operand has 47 states, 31 states have (on average 1.064516129032258) internal successors, (33), 29 states have internal predecessors, (33), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:21:41,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:41,155 INFO L93 Difference]: Finished difference Result 819 states and 1260 transitions. [2022-12-14 14:21:41,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-14 14:21:41,156 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 31 states have (on average 1.064516129032258) internal successors, (33), 29 states have internal predecessors, (33), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 66 [2022-12-14 14:21:41,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:41,158 INFO L225 Difference]: With dead ends: 819 [2022-12-14 14:21:41,158 INFO L226 Difference]: Without dead ends: 563 [2022-12-14 14:21:41,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 99.0s TimeCoverageRelationStatistics Valid=264, Invalid=3396, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 14:21:41,160 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 302 mSDsluCounter, 3983 mSDsCounter, 0 mSdLazyCounter, 5100 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 4191 SdHoareTripleChecker+Invalid, 5137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 5100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:41,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 4191 Invalid, 5137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 5100 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2022-12-14 14:21:41,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-12-14 14:21:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 407. [2022-12-14 14:21:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 297 states have (on average 1.4983164983164983) internal successors, (445), 300 states have internal predecessors, (445), 86 states have call successors, (86), 24 states have call predecessors, (86), 23 states have return successors, (86), 82 states have call predecessors, (86), 85 states have call successors, (86) [2022-12-14 14:21:41,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 617 transitions. [2022-12-14 14:21:41,400 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 617 transitions. Word has length 66 [2022-12-14 14:21:41,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:41,400 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 617 transitions. [2022-12-14 14:21:41,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 31 states have (on average 1.064516129032258) internal successors, (33), 29 states have internal predecessors, (33), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:21:41,400 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 617 transitions. [2022-12-14 14:21:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 14:21:41,402 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:41,402 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:21:41,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:21:41,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 14:21:41,603 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:21:41,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:41,604 INFO L85 PathProgramCache]: Analyzing trace with hash 314499402, now seen corresponding path program 1 times [2022-12-14 14:21:41,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:41,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939186344] [2022-12-14 14:21:41,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:41,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:41,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:21:41,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:41,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939186344] [2022-12-14 14:21:41,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939186344] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:21:41,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449451558] [2022-12-14 14:21:41,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:41,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:21:41,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:21:41,738 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:21:41,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:21:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:41,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:21:41,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:21:41,942 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:21:41,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:21:41,978 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:21:41,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449451558] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:21:41,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [687944486] [2022-12-14 14:21:41,980 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2022-12-14 14:21:41,980 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:21:41,981 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:21:41,981 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:21:41,981 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:22:11,377 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 14:22:11,660 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 229 for LOIs [2022-12-14 14:22:11,716 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-12-14 14:22:11,774 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 14:22:12,055 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 228 for LOIs [2022-12-14 14:22:12,114 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 230 for LOIs [2022-12-14 14:22:13,510 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2022-12-14 14:22:13,539 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 230 for LOIs [2022-12-14 14:22:29,553 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 382 for LOIs [2022-12-14 14:22:29,723 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 222 for LOIs [2022-12-14 14:22:29,756 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 392 for LOIs [2022-12-14 14:22:30,213 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:23:47,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [687944486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:23:47,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:23:47,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [4, 4, 4] total 57 [2022-12-14 14:23:47,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858778704] [2022-12-14 14:23:47,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:23:47,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-14 14:23:47,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:23:47,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-14 14:23:47,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=3037, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 14:23:47,532 INFO L87 Difference]: Start difference. First operand 407 states and 617 transitions. Second operand has 52 states, 31 states have (on average 1.064516129032258) internal successors, (33), 29 states have internal predecessors, (33), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 14:24:24,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:24:24,954 INFO L93 Difference]: Finished difference Result 847 states and 1302 transitions. [2022-12-14 14:24:24,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-14 14:24:24,955 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 31 states have (on average 1.064516129032258) internal successors, (33), 29 states have internal predecessors, (33), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 69 [2022-12-14 14:24:24,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:24:24,957 INFO L225 Difference]: With dead ends: 847 [2022-12-14 14:24:24,957 INFO L226 Difference]: Without dead ends: 591 [2022-12-14 14:24:24,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 859 ImplicationChecksByTransitivity, 94.9s TimeCoverageRelationStatistics Valid=227, Invalid=4063, Unknown=0, NotChecked=0, Total=4290 [2022-12-14 14:24:24,959 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 269 mSDsluCounter, 4895 mSDsCounter, 0 mSdLazyCounter, 7284 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 5109 SdHoareTripleChecker+Invalid, 7316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 7284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:24:24,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 5109 Invalid, 7316 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [32 Valid, 7284 Invalid, 0 Unknown, 0 Unchecked, 19.0s Time] [2022-12-14 14:24:24,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-12-14 14:24:25,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 445. [2022-12-14 14:24:25,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 328 states have (on average 1.4939024390243902) internal successors, (490), 332 states have internal predecessors, (490), 90 states have call successors, (90), 27 states have call predecessors, (90), 26 states have return successors, (90), 85 states have call predecessors, (90), 89 states have call successors, (90) [2022-12-14 14:24:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 670 transitions. [2022-12-14 14:24:25,284 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 670 transitions. Word has length 69 [2022-12-14 14:24:25,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:24:25,285 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 670 transitions. [2022-12-14 14:24:25,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 31 states have (on average 1.064516129032258) internal successors, (33), 29 states have internal predecessors, (33), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 14:24:25,285 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 670 transitions. [2022-12-14 14:24:25,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 14:24:25,287 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:24:25,287 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:24:25,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:24:25,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 14:24:25,488 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:24:25,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:24:25,490 INFO L85 PathProgramCache]: Analyzing trace with hash -797446096, now seen corresponding path program 1 times [2022-12-14 14:24:25,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:24:25,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115875446] [2022-12-14 14:24:25,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:24:25,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:24:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:24:25,622 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 14:24:25,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:24:25,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115875446] [2022-12-14 14:24:25,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115875446] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:24:25,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737597407] [2022-12-14 14:24:25,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:24:25,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:24:25,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:24:25,623 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:24:25,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:24:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:24:25,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:24:25,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:24:25,833 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:24:25,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:24:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:24:25,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737597407] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:24:25,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [304566271] [2022-12-14 14:24:25,889 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2022-12-14 14:24:25,889 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:24:25,890 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:24:25,890 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:24:25,890 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:25:37,425 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 14:25:37,705 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 436 for LOIs [2022-12-14 14:25:37,975 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 254 for LOIs [2022-12-14 14:25:39,453 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2022-12-14 14:25:39,488 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 256 for LOIs [2022-12-14 14:25:48,616 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 246 for LOIs [2022-12-14 14:25:48,647 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 246 for LOIs [2022-12-14 14:25:48,685 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 439 for LOIs [2022-12-14 14:25:49,294 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:26:44,339 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 565 DAG size of output: 420 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:26:55,151 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 578 DAG size of output: 405 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:27:30,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [304566271] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:27:30,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:27:30,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [6, 5, 5] total 55 [2022-12-14 14:27:30,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043733640] [2022-12-14 14:27:30,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:27:30,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-12-14 14:27:30,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:27:30,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-12-14 14:27:30,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=2802, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 14:27:30,542 INFO L87 Difference]: Start difference. First operand 445 states and 670 transitions. Second operand has 47 states, 31 states have (on average 1.096774193548387) internal successors, (34), 29 states have internal predecessors, (34), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:28:04,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:28:04,532 INFO L93 Difference]: Finished difference Result 932 states and 1436 transitions. [2022-12-14 14:28:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-14 14:28:04,533 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 31 states have (on average 1.096774193548387) internal successors, (34), 29 states have internal predecessors, (34), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 71 [2022-12-14 14:28:04,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:28:04,535 INFO L225 Difference]: With dead ends: 932 [2022-12-14 14:28:04,535 INFO L226 Difference]: Without dead ends: 676 [2022-12-14 14:28:04,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 163 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 118.6s TimeCoverageRelationStatistics Valid=224, Invalid=3558, Unknown=0, NotChecked=0, Total=3782 [2022-12-14 14:28:04,537 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 251 mSDsluCounter, 3782 mSDsCounter, 0 mSdLazyCounter, 5643 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 3998 SdHoareTripleChecker+Invalid, 5683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 5643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:28:04,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 3998 Invalid, 5683 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 5643 Invalid, 0 Unknown, 0 Unchecked, 15.6s Time] [2022-12-14 14:28:04,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-12-14 14:28:04,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 466. [2022-12-14 14:28:04,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 346 states have (on average 1.4942196531791907) internal successors, (517), 350 states have internal predecessors, (517), 92 states have call successors, (92), 28 states have call predecessors, (92), 27 states have return successors, (92), 87 states have call predecessors, (92), 91 states have call successors, (92) [2022-12-14 14:28:04,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 701 transitions. [2022-12-14 14:28:04,947 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 701 transitions. Word has length 71 [2022-12-14 14:28:04,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:28:04,947 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 701 transitions. [2022-12-14 14:28:04,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 31 states have (on average 1.096774193548387) internal successors, (34), 29 states have internal predecessors, (34), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:28:04,948 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 701 transitions. [2022-12-14 14:28:04,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 14:28:04,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:28:04,949 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:28:04,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:28:05,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:28:05,149 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:28:05,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:28:05,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1158465290, now seen corresponding path program 1 times [2022-12-14 14:28:05,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:28:05,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749182077] [2022-12-14 14:28:05,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:05,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:28:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:05,266 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:28:05,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:28:05,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749182077] [2022-12-14 14:28:05,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749182077] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:28:05,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614325978] [2022-12-14 14:28:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:28:05,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:28:05,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:28:05,268 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:28:05,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2053b7bf-5b15-4476-99f0-980325077f6a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 14:28:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:28:05,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 14:28:05,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:28:05,506 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:28:05,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:28:05,559 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:28:05,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614325978] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:28:05,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1247410677] [2022-12-14 14:28:05,561 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 14:28:05,561 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:28:05,562 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:28:05,562 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:28:05,562 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:29:49,382 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-12-14 14:29:49,673 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 231 for LOIs [2022-12-14 14:29:49,731 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 394 for LOIs [2022-12-14 14:29:49,986 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-12-14 14:29:50,267 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 230 for LOIs [2022-12-14 14:29:50,324 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 413 for LOIs [2022-12-14 14:30:12,671 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 391 for LOIs [2022-12-14 14:30:12,878 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 411 for LOIs [2022-12-14 14:30:46,541 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 378 for LOIs [2022-12-14 14:30:46,701 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 224 for LOIs [2022-12-14 14:30:46,733 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 213 for LOIs [2022-12-14 14:30:46,814 INFO L180 IcfgInterpreter]: Interpretation finished