./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product29.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_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/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_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/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_c59648a6-4a45-4324-a797-375f523e752d/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 63bdee5cc43e6d0ce6e1fd7ff8178b7d4c48f0f239c647cbda6fb7b36603cc42 --- 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 06:41:39,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:41:39,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:41:39,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:41:39,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:41:39,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:41:39,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:41:39,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:41:39,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:41:39,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:41:39,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:41:39,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:41:39,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:41:39,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:41:39,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:41:39,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:41:39,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:41:39,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:41:39,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:41:39,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:41:39,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:41:39,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:41:39,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:41:39,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:41:39,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:41:39,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:41:39,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:41:39,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:41:39,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:41:39,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:41:39,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:41:39,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:41:39,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:41:39,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:41:39,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:41:39,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:41:39,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:41:39,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:41:39,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:41:39,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:41:39,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:41:39,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:41:39,238 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:41:39,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:41:39,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:41:39,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:41:39,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:41:39,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:41:39,239 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:41:39,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:41:39,240 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:41:39,240 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:41:39,240 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:41:39,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:41:39,241 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:41:39,241 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:41:39,241 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:41:39,241 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:41:39,241 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:41:39,242 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:41:39,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:41:39,242 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:41:39,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:41:39,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:41:39,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:41:39,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:41:39,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:41:39,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:41:39,244 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:41:39,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:41:39,244 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:41:39,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:41:39,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:41:39,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:41:39,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:41:39,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:41:39,245 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:41:39,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:41:39,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:41:39,246 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:41:39,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:41:39,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:41:39,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:41:39,246 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_c59648a6-4a45-4324-a797-375f523e752d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63bdee5cc43e6d0ce6e1fd7ff8178b7d4c48f0f239c647cbda6fb7b36603cc42 [2022-12-14 06:41:39,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:41:39,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:41:39,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:41:39,453 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:41:39,453 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:41:39,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec1_product29.cil.c [2022-12-14 06:41:42,039 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:41:42,295 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:41:42,296 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/sv-benchmarks/c/product-lines/email_spec1_product29.cil.c [2022-12-14 06:41:42,311 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/data/958e6f6a7/bd0649a246404cb1a7499fff264c4c3e/FLAG68c80216f [2022-12-14 06:41:42,587 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/data/958e6f6a7/bd0649a246404cb1a7499fff264c4c3e [2022-12-14 06:41:42,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:41:42,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:41:42,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:41:42,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:41:42,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:41:42,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:41:42" (1/1) ... [2022-12-14 06:41:42,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5500f68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:42, skipping insertion in model container [2022-12-14 06:41:42,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:41:42" (1/1) ... [2022-12-14 06:41:42,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:41:42,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:41:42,883 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:42,885 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:42,887 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:42,892 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_c59648a6-4a45-4324-a797-375f523e752d/sv-benchmarks/c/product-lines/email_spec1_product29.cil.c[32754,32767] [2022-12-14 06:41:42,938 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:42,946 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:42,950 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:42,951 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:42,952 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:42,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:41:42,968 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:41:43,004 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:43,005 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:43,007 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:43,010 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_c59648a6-4a45-4324-a797-375f523e752d/sv-benchmarks/c/product-lines/email_spec1_product29.cil.c[32754,32767] [2022-12-14 06:41:43,048 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:43,049 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:43,050 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:43,051 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:43,052 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:41:43,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:41:43,075 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:41:43,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43 WrapperNode [2022-12-14 06:41:43,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:41:43,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:41:43,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:41:43,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:41:43,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (1/1) ... [2022-12-14 06:41:43,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (1/1) ... [2022-12-14 06:41:43,127 INFO L138 Inliner]: procedures = 131, calls = 227, calls flagged for inlining = 55, calls inlined = 47, statements flattened = 923 [2022-12-14 06:41:43,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:41:43,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:41:43,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:41:43,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:41:43,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (1/1) ... [2022-12-14 06:41:43,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (1/1) ... [2022-12-14 06:41:43,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (1/1) ... [2022-12-14 06:41:43,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (1/1) ... [2022-12-14 06:41:43,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (1/1) ... [2022-12-14 06:41:43,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (1/1) ... [2022-12-14 06:41:43,157 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (1/1) ... [2022-12-14 06:41:43,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (1/1) ... [2022-12-14 06:41:43,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:41:43,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:41:43,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:41:43,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:41:43,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (1/1) ... [2022-12-14 06:41:43,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:41:43,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:41:43,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:41:43,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:41:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-12-14 06:41:43,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-12-14 06:41:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-14 06:41:43,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-14 06:41:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 06:41:43,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 06:41:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-14 06:41:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-14 06:41:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 06:41:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 06:41:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 06:41:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 06:41:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 06:41:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 06:41:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-14 06:41:43,222 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-14 06:41:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 06:41:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 06:41:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 06:41:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 06:41:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-12-14 06:41:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-12-14 06:41:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 06:41:43,223 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 06:41:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 06:41:43,223 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 06:41:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 06:41:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 06:41:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 06:41:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:41:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-12-14 06:41:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-12-14 06:41:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-12-14 06:41:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-12-14 06:41:43,224 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-14 06:41:43,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-14 06:41:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 06:41:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 06:41:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 06:41:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 06:41:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 06:41:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 06:41:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-12-14 06:41:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-12-14 06:41:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-12-14 06:41:43,225 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-12-14 06:41:43,225 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 06:41:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 06:41:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 06:41:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 06:41:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 06:41:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 06:41:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 06:41:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 06:41:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:41:43,226 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 06:41:43,226 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 06:41:43,227 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-14 06:41:43,227 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-14 06:41:43,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:41:43,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:41:43,380 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:41:43,382 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:41:43,976 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:41:44,305 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:41:44,305 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:41:44,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:41:44 BoogieIcfgContainer [2022-12-14 06:41:44,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:41:44,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:41:44,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:41:44,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:41:44,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:41:42" (1/3) ... [2022-12-14 06:41:44,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a92651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:41:44, skipping insertion in model container [2022-12-14 06:41:44,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:41:43" (2/3) ... [2022-12-14 06:41:44,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a92651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:41:44, skipping insertion in model container [2022-12-14 06:41:44,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:41:44" (3/3) ... [2022-12-14 06:41:44,317 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product29.cil.c [2022-12-14 06:41:44,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:41:44,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:41:44,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:41:44,394 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;@336f9769, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:41:44,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:41:44,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 06:41:44,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 06:41:44,410 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:41:44,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:41:44,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:41:44,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:41:44,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1091974862, now seen corresponding path program 1 times [2022-12-14 06:41:44,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:41:44,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232464538] [2022-12-14 06:41:44,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:41:44,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:41:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:41:44,627 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 06:41:44,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:41:44,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232464538] [2022-12-14 06:41:44,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232464538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:41:44,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:41:44,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:41:44,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909522179] [2022-12-14 06:41:44,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:41:44,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:41:44,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:41:44,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:41:44,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:41:44,656 INFO L87 Difference]: Start difference. First operand has 213 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 125 states have internal predecessors, (157), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:41:44,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:41:44,774 INFO L93 Difference]: Finished difference Result 334 states and 437 transitions. [2022-12-14 06:41:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:41:44,776 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2022-12-14 06:41:44,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:41:44,784 INFO L225 Difference]: With dead ends: 334 [2022-12-14 06:41:44,784 INFO L226 Difference]: Without dead ends: 210 [2022-12-14 06:41:44,787 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 06:41:44,789 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:41:44,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 242 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:41:44,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-12-14 06:41:44,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-12-14 06:41:44,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 122 states have internal predecessors, (151), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 06:41:44,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2022-12-14 06:41:44,828 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 71 [2022-12-14 06:41:44,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:41:44,829 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2022-12-14 06:41:44,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:41:44,829 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2022-12-14 06:41:44,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 06:41:44,831 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:41:44,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:41:44,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:41:44,832 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:41:44,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:41:44,832 INFO L85 PathProgramCache]: Analyzing trace with hash -155047064, now seen corresponding path program 1 times [2022-12-14 06:41:44,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:41:44,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333350232] [2022-12-14 06:41:44,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:41:44,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:41:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:41:44,955 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 06:41:44,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:41:44,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333350232] [2022-12-14 06:41:44,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333350232] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:41:44,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:41:44,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:41:44,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238926652] [2022-12-14 06:41:44,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:41:44,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:41:44,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:41:44,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:41:44,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:41:44,959 INFO L87 Difference]: Start difference. First operand 210 states and 276 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:41:45,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:41:45,062 INFO L93 Difference]: Finished difference Result 330 states and 422 transitions. [2022-12-14 06:41:45,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:41:45,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2022-12-14 06:41:45,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:41:45,065 INFO L225 Difference]: With dead ends: 330 [2022-12-14 06:41:45,065 INFO L226 Difference]: Without dead ends: 212 [2022-12-14 06:41:45,067 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 06:41:45,068 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:41:45,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 477 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:41:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-12-14 06:41:45,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-12-14 06:41:45,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 120 states have (on average 1.275) internal successors, (153), 124 states have internal predecessors, (153), 63 states have call successors, (63), 28 states have call predecessors, (63), 28 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 06:41:45,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 278 transitions. [2022-12-14 06:41:45,089 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 278 transitions. Word has length 72 [2022-12-14 06:41:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:41:45,089 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 278 transitions. [2022-12-14 06:41:45,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:41:45,090 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 278 transitions. [2022-12-14 06:41:45,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 06:41:45,092 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:41:45,093 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:41:45,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:41:45,093 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:41:45,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:41:45,093 INFO L85 PathProgramCache]: Analyzing trace with hash -701371873, now seen corresponding path program 1 times [2022-12-14 06:41:45,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:41:45,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992976727] [2022-12-14 06:41:45,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:41:45,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:41:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:41:45,207 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 06:41:45,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:41:45,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992976727] [2022-12-14 06:41:45,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992976727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:41:45,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:41:45,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:41:45,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519068180] [2022-12-14 06:41:45,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:41:45,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:41:45,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:41:45,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:41:45,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:41:45,210 INFO L87 Difference]: Start difference. First operand 212 states and 278 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:41:45,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:41:45,311 INFO L93 Difference]: Finished difference Result 459 states and 623 transitions. [2022-12-14 06:41:45,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:41:45,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2022-12-14 06:41:45,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:41:45,313 INFO L225 Difference]: With dead ends: 459 [2022-12-14 06:41:45,314 INFO L226 Difference]: Without dead ends: 265 [2022-12-14 06:41:45,315 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 06:41:45,316 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 59 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:41:45,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 487 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:41:45,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-12-14 06:41:45,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 260. [2022-12-14 06:41:45,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 154 states have (on average 1.3506493506493507) internal successors, (208), 158 states have internal predecessors, (208), 77 states have call successors, (77), 28 states have call predecessors, (77), 28 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-14 06:41:45,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 361 transitions. [2022-12-14 06:41:45,339 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 361 transitions. Word has length 77 [2022-12-14 06:41:45,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:41:45,339 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 361 transitions. [2022-12-14 06:41:45,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-12-14 06:41:45,339 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 361 transitions. [2022-12-14 06:41:45,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 06:41:45,342 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:41:45,342 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:41:45,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:41:45,343 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:41:45,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:41:45,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1169957511, now seen corresponding path program 1 times [2022-12-14 06:41:45,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:41:45,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035247657] [2022-12-14 06:41:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:41:45,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:41:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:41:45,503 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 06:41:45,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:41:45,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035247657] [2022-12-14 06:41:45,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035247657] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:41:45,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688761061] [2022-12-14 06:41:45,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:41:45,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:41:45,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:41:45,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:41:45,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:41:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:41:45,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:41:45,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:41:45,778 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 06:41:45,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:41:45,833 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 06:41:45,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688761061] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:41:45,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1122762004] [2022-12-14 06:41:45,849 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 06:41:45,849 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:41:45,851 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:41:45,855 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:41:45,855 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:42:13,509 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:42:13,827 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:42:14,147 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:42:49,868 WARN L233 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 585 DAG size of output: 330 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:43:02,249 WARN L233 SmtUtils]: Spent 12.12s on a formula simplification. DAG size of input: 587 DAG size of output: 453 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:43:12,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1122762004] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:43:12,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:43:12,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-12-14 06:43:12,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680284065] [2022-12-14 06:43:12,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:43:12,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 06:43:12,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:43:12,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 06:43:12,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:43:12,624 INFO L87 Difference]: Start difference. First operand 260 states and 361 transitions. Second operand has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-12-14 06:43:17,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:43:17,855 INFO L93 Difference]: Finished difference Result 602 states and 889 transitions. [2022-12-14 06:43:17,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 06:43:17,856 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2022-12-14 06:43:17,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:43:17,857 INFO L225 Difference]: With dead ends: 602 [2022-12-14 06:43:17,858 INFO L226 Difference]: Without dead ends: 360 [2022-12-14 06:43:17,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 58.5s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:43:17,859 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 163 mSDsluCounter, 2999 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3286 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:43:17,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3286 Invalid, 1859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1850 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-12-14 06:43:17,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-12-14 06:43:17,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 283. [2022-12-14 06:43:17,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 176 states have (on average 1.3693181818181819) internal successors, (241), 180 states have internal predecessors, (241), 77 states have call successors, (77), 29 states have call predecessors, (77), 29 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2022-12-14 06:43:17,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 394 transitions. [2022-12-14 06:43:17,950 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 394 transitions. Word has length 78 [2022-12-14 06:43:17,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:43:17,950 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 394 transitions. [2022-12-14 06:43:17,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2022-12-14 06:43:17,950 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 394 transitions. [2022-12-14 06:43:17,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 06:43:17,952 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:43:17,952 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:43:17,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:43:18,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:43:18,154 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:43:18,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:43:18,154 INFO L85 PathProgramCache]: Analyzing trace with hash -987132957, now seen corresponding path program 1 times [2022-12-14 06:43:18,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:43:18,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100831497] [2022-12-14 06:43:18,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:43:18,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:43:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:43:18,241 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 06:43:18,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:43:18,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100831497] [2022-12-14 06:43:18,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100831497] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:43:18,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:43:18,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:43:18,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095411395] [2022-12-14 06:43:18,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:43:18,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:43:18,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:43:18,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:43:18,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:43:18,243 INFO L87 Difference]: Start difference. First operand 283 states and 394 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:43:18,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:43:18,489 INFO L93 Difference]: Finished difference Result 669 states and 968 transitions. [2022-12-14 06:43:18,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:43:18,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2022-12-14 06:43:18,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:43:18,492 INFO L225 Difference]: With dead ends: 669 [2022-12-14 06:43:18,492 INFO L226 Difference]: Without dead ends: 410 [2022-12-14 06:43:18,493 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 06:43:18,494 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 57 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:43:18,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 499 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:43:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-12-14 06:43:18,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 405. [2022-12-14 06:43:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 267 states have (on average 1.4269662921348314) internal successors, (381), 271 states have internal predecessors, (381), 108 states have call successors, (108), 29 states have call predecessors, (108), 29 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2022-12-14 06:43:18,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 596 transitions. [2022-12-14 06:43:18,638 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 596 transitions. Word has length 83 [2022-12-14 06:43:18,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:43:18,638 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 596 transitions. [2022-12-14 06:43:18,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-14 06:43:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 596 transitions. [2022-12-14 06:43:18,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 06:43:18,640 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:43:18,640 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:43:18,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:43:18,640 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:43:18,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:43:18,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1739228366, now seen corresponding path program 1 times [2022-12-14 06:43:18,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:43:18,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521523911] [2022-12-14 06:43:18,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:43:18,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:43:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:43:18,782 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 06:43:18,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:43:18,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521523911] [2022-12-14 06:43:18,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521523911] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:43:18,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042437933] [2022-12-14 06:43:18,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:43:18,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:43:18,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:43:18,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:43:18,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 06:43:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:43:18,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:43:18,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:43:19,002 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 06:43:19,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:43:19,049 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 06:43:19,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042437933] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:43:19,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1879438652] [2022-12-14 06:43:19,052 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 06:43:19,052 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:43:19,053 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:43:19,053 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:43:19,053 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:43:58,117 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 06:43:58,441 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 263 for LOIs [2022-12-14 06:44:00,310 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-12-14 06:44:00,351 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-12-14 06:44:00,665 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 265 for LOIs [2022-12-14 06:44:03,637 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 227 for LOIs [2022-12-14 06:44:03,675 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 265 for LOIs [2022-12-14 06:44:11,057 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2022-12-14 06:44:11,128 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 243 for LOIs [2022-12-14 06:44:11,171 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 484 for LOIs [2022-12-14 06:44:15,780 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-12-14 06:44:15,830 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:44:52,821 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 587 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:45:04,128 WARN L233 SmtUtils]: Spent 11.03s on a formula simplification. DAG size of input: 589 DAG size of output: 461 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:45:16,322 WARN L233 SmtUtils]: Spent 11.80s on a formula simplification. DAG size of input: 588 DAG size of output: 461 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:45:28,384 WARN L233 SmtUtils]: Spent 11.75s on a formula simplification. DAG size of input: 586 DAG size of output: 459 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:46:17,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1879438652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:46:17,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:46:17,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [4, 4, 4] total 63 [2022-12-14 06:46:17,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776212162] [2022-12-14 06:46:17,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:46:17,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-12-14 06:46:17,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:46:17,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-12-14 06:46:17,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=3740, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 06:46:17,539 INFO L87 Difference]: Start difference. First operand 405 states and 596 transitions. Second operand has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 06:46:33,809 WARN L233 SmtUtils]: Spent 10.31s on a formula simplification. DAG size of input: 511 DAG size of output: 441 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:46:43,532 WARN L233 SmtUtils]: Spent 9.32s on a formula simplification. DAG size of input: 511 DAG size of output: 437 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:46:52,763 WARN L233 SmtUtils]: Spent 8.82s on a formula simplification. DAG size of input: 509 DAG size of output: 435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:47:13,695 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 589 DAG size of output: 393 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:47:46,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:47:46,772 INFO L93 Difference]: Finished difference Result 949 states and 1453 transitions. [2022-12-14 06:47:46,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-12-14 06:47:46,773 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 84 [2022-12-14 06:47:46,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:47:46,775 INFO L225 Difference]: With dead ends: 949 [2022-12-14 06:47:46,775 INFO L226 Difference]: Without dead ends: 607 [2022-12-14 06:47:46,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 183.0s TimeCoverageRelationStatistics Valid=271, Invalid=6049, Unknown=0, NotChecked=0, Total=6320 [2022-12-14 06:47:46,781 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 195 mSDsluCounter, 6759 mSDsCounter, 0 mSdLazyCounter, 9146 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 7009 SdHoareTripleChecker+Invalid, 9174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 9146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:47:46,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 7009 Invalid, 9174 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [28 Valid, 9146 Invalid, 0 Unknown, 0 Unchecked, 27.1s Time] [2022-12-14 06:47:46,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-12-14 06:47:47,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 491. [2022-12-14 06:47:47,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 333 states have (on average 1.4384384384384385) internal successors, (479), 339 states have internal predecessors, (479), 121 states have call successors, (121), 39 states have call predecessors, (121), 36 states have return successors, (120), 114 states have call predecessors, (120), 120 states have call successors, (120) [2022-12-14 06:47:47,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 720 transitions. [2022-12-14 06:47:47,066 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 720 transitions. Word has length 84 [2022-12-14 06:47:47,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:47:47,067 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 720 transitions. [2022-12-14 06:47:47,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 35 states have internal predecessors, (44), 18 states have call successors, (18), 12 states have call predecessors, (18), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 06:47:47,067 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 720 transitions. [2022-12-14 06:47:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 06:47:47,068 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:47:47,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:47:47,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 06:47:47,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:47:47,270 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:47:47,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:47:47,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1250060115, now seen corresponding path program 1 times [2022-12-14 06:47:47,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:47:47,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430688083] [2022-12-14 06:47:47,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:47,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:47:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:47,373 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 06:47:47,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:47:47,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430688083] [2022-12-14 06:47:47,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430688083] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:47:47,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046026752] [2022-12-14 06:47:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:47:47,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:47:47,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:47:47,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:47:47,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 06:47:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:47:47,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:47:47,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:47:47,621 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 06:47:47,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:47:47,665 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 06:47:47,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046026752] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:47:47,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [842794891] [2022-12-14 06:47:47,668 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-12-14 06:47:47,668 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:47:47,669 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:47:47,669 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:47:47,669 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:49:01,333 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-12-14 06:49:01,649 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 06:49:01,949 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 06:49:02,259 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 238 for LOIs [2022-12-14 06:49:03,802 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 215 for LOIs [2022-12-14 06:49:03,862 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 212 for LOIs [2022-12-14 06:49:03,902 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:49:04,221 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 238 for LOIs [2022-12-14 06:49:06,663 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 204 for LOIs [2022-12-14 06:49:06,695 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 240 for LOIs [2022-12-14 06:49:11,703 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 221 for LOIs [2022-12-14 06:49:11,765 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 218 for LOIs [2022-12-14 06:49:11,806 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 424 for LOIs [2022-12-14 06:49:13,382 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 226 for LOIs [2022-12-14 06:49:13,425 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:50:25,154 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 424 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:51:01,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [842794891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:01,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:51:01,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [4, 4, 4] total 69 [2022-12-14 06:51:01,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446939049] [2022-12-14 06:51:01,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:01,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-12-14 06:51:01,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:01,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-12-14 06:51:01,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=4498, Unknown=0, NotChecked=0, Total=4692 [2022-12-14 06:51:01,136 INFO L87 Difference]: Start difference. First operand 491 states and 720 transitions. Second operand has 64 states, 40 states have (on average 1.1) internal successors, (44), 37 states have internal predecessors, (44), 20 states have call successors, (20), 15 states have call predecessors, (20), 12 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 06:52:04,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:52:04,858 INFO L93 Difference]: Finished difference Result 1029 states and 1563 transitions. [2022-12-14 06:52:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-12-14 06:52:04,859 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 40 states have (on average 1.1) internal successors, (44), 37 states have internal predecessors, (44), 20 states have call successors, (20), 15 states have call predecessors, (20), 12 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 87 [2022-12-14 06:52:04,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:52:04,861 INFO L225 Difference]: With dead ends: 1029 [2022-12-14 06:52:04,861 INFO L226 Difference]: Without dead ends: 687 [2022-12-14 06:52:04,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 194 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1573 ImplicationChecksByTransitivity, 137.8s TimeCoverageRelationStatistics Valid=336, Invalid=6974, Unknown=0, NotChecked=0, Total=7310 [2022-12-14 06:52:04,863 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 355 mSDsluCounter, 7512 mSDsCounter, 0 mSdLazyCounter, 11904 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 7798 SdHoareTripleChecker+Invalid, 11950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 11904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:52:04,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 7798 Invalid, 11950 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [46 Valid, 11904 Invalid, 0 Unknown, 0 Unchecked, 32.7s Time] [2022-12-14 06:52:04,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2022-12-14 06:52:05,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 601. [2022-12-14 06:52:05,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 419 states have (on average 1.4510739856801909) internal successors, (608), 428 states have internal predecessors, (608), 136 states have call successors, (136), 51 states have call predecessors, (136), 45 states have return successors, (135), 123 states have call predecessors, (135), 135 states have call successors, (135) [2022-12-14 06:52:05,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 879 transitions. [2022-12-14 06:52:05,251 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 879 transitions. Word has length 87 [2022-12-14 06:52:05,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:52:05,251 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 879 transitions. [2022-12-14 06:52:05,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 40 states have (on average 1.1) internal successors, (44), 37 states have internal predecessors, (44), 20 states have call successors, (20), 15 states have call predecessors, (20), 12 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 06:52:05,251 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 879 transitions. [2022-12-14 06:52:05,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 06:52:05,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:52:05,253 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, 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 06:52:05,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 06:52:05,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:52:05,454 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:52:05,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:52:05,455 INFO L85 PathProgramCache]: Analyzing trace with hash -2102888748, now seen corresponding path program 1 times [2022-12-14 06:52:05,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:52:05,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065782004] [2022-12-14 06:52:05,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:52:05,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:52:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:52:05,556 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 06:52:05,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:52:05,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065782004] [2022-12-14 06:52:05,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065782004] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:52:05,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929391962] [2022-12-14 06:52:05,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:52:05,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:52:05,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:52:05,557 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:52:05,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c59648a6-4a45-4324-a797-375f523e752d/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:52:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:52:05,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 06:52:05,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:52:05,811 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 06:52:05,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:52:05,869 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 06:52:05,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929391962] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:52:05,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [503804696] [2022-12-14 06:52:05,873 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2022-12-14 06:52:05,873 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 06:52:05,874 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 06:52:05,874 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 06:52:05,874 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 06:53:17,095 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 06:53:17,407 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 06:53:17,702 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 06:53:17,998 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 238 for LOIs [2022-12-14 06:53:19,498 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 215 for LOIs [2022-12-14 06:53:19,557 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 212 for LOIs [2022-12-14 06:53:19,590 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-12-14 06:53:19,903 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 238 for LOIs [2022-12-14 06:53:22,280 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 204 for LOIs [2022-12-14 06:53:22,312 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 240 for LOIs [2022-12-14 06:53:30,108 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailIsEncrypted with input of size 222 for LOIs [2022-12-14 06:53:30,146 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 221 for LOIs [2022-12-14 06:53:30,208 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 218 for LOIs [2022-12-14 06:53:30,244 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 411 for LOIs [2022-12-14 06:53:33,240 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailEncryptionKey with input of size 228 for LOIs [2022-12-14 06:53:33,283 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 226 for LOIs [2022-12-14 06:53:33,324 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 06:54:16,425 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 532 DAG size of output: 390 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:54:37,524 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 530 DAG size of output: 313 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:54:45,304 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 411 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:54:52,738 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 432 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:55:34,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [503804696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:55:34,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 06:55:34,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [4, 4, 4] total 75 [2022-12-14 06:55:34,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4434735] [2022-12-14 06:55:34,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:55:34,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-12-14 06:55:34,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:55:34,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-12-14 06:55:34,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=5344, Unknown=0, NotChecked=0, Total=5550 [2022-12-14 06:55:34,822 INFO L87 Difference]: Start difference. First operand 601 states and 879 transitions. Second operand has 70 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 39 states have internal predecessors, (46), 22 states have call successors, (22), 17 states have call predecessors, (22), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19)