./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product15.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_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/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_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/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_f24f4d87-f5af-4ec5-bc80-e9931380cc20/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 3a5e24a2ecd4f1b82ac6c9f3672db1eec2c6845bb52ab38fa9dd83ecce424f6f --- 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 10:55:10,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:55:10,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:55:10,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:55:10,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:55:10,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:55:10,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:55:10,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:55:10,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:55:10,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:55:10,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:55:10,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:55:10,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:55:10,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:55:10,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:55:10,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:55:10,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:55:10,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:55:10,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:55:10,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:55:10,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:55:10,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:55:10,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:55:10,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:55:10,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:55:10,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:55:10,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:55:10,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:55:10,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:55:10,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:55:10,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:55:10,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:55:10,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:55:10,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:55:10,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:55:10,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:55:10,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:55:10,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:55:10,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:55:10,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:55:10,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:55:10,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 10:55:10,176 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:55:10,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:55:10,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:55:10,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:55:10,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:55:10,177 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:55:10,178 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:55:10,178 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:55:10,178 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:55:10,178 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:55:10,178 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:55:10,179 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:55:10,179 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:55:10,179 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:55:10,179 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:55:10,179 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:55:10,180 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:55:10,180 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:55:10,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:55:10,181 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:55:10,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:55:10,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:55:10,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:55:10,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:55:10,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:55:10,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:55:10,182 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:55:10,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:55:10,182 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:55:10,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:55:10,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:55:10,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:55:10,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:55:10,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:55:10,184 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:55:10,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:55:10,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:55:10,184 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:55:10,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:55:10,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:55:10,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:55:10,185 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_f24f4d87-f5af-4ec5-bc80-e9931380cc20/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a5e24a2ecd4f1b82ac6c9f3672db1eec2c6845bb52ab38fa9dd83ecce424f6f [2022-12-14 10:55:10,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:55:10,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:55:10,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:55:10,406 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:55:10,407 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:55:10,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/email_spec9_product15.cil.c [2022-12-14 10:55:12,988 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:55:13,193 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:55:13,194 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/sv-benchmarks/c/product-lines/email_spec9_product15.cil.c [2022-12-14 10:55:13,206 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/data/f9587eb5b/2978e19062204f0c8b6f8a5531bac328/FLAGa28a5c895 [2022-12-14 10:55:13,217 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/data/f9587eb5b/2978e19062204f0c8b6f8a5531bac328 [2022-12-14 10:55:13,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:55:13,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:55:13,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:55:13,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:55:13,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:55:13,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341c1c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13, skipping insertion in model container [2022-12-14 10:55:13,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:55:13,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:55:13,550 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_f24f4d87-f5af-4ec5-bc80-e9931380cc20/sv-benchmarks/c/product-lines/email_spec9_product15.cil.c[51080,51093] [2022-12-14 10:55:13,567 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,570 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,578 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,579 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,580 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,592 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,593 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,595 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:55:13,616 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:55:13,669 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_f24f4d87-f5af-4ec5-bc80-e9931380cc20/sv-benchmarks/c/product-lines/email_spec9_product15.cil.c[51080,51093] [2022-12-14 10:55:13,670 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,671 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,675 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,676 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,676 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,678 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,679 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,680 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:55:13,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:55:13,705 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:55:13,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13 WrapperNode [2022-12-14 10:55:13,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:55:13,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:55:13,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:55:13,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:55:13,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,756 INFO L138 Inliner]: procedures = 126, calls = 201, calls flagged for inlining = 55, calls inlined = 46, statements flattened = 889 [2022-12-14 10:55:13,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:55:13,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:55:13,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:55:13,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:55:13,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,785 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:55:13,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:55:13,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:55:13,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:55:13,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (1/1) ... [2022-12-14 10:55:13,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:55:13,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:55:13,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:55:13,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:55:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-14 10:55:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-14 10:55:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-14 10:55:13,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-14 10:55:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-14 10:55:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-14 10:55:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-14 10:55:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-14 10:55:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-14 10:55:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-14 10:55:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-14 10:55:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-14 10:55:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-14 10:55:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-14 10:55:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-14 10:55:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-14 10:55:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-14 10:55:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-14 10:55:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-14 10:55:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:55:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-14 10:55:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-14 10:55:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-14 10:55:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-14 10:55:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-14 10:55:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-14 10:55:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-14 10:55:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-14 10:55:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-14 10:55:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-14 10:55:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-14 10:55:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-14 10:55:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-14 10:55:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-14 10:55:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:55:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-14 10:55:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-14 10:55:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:55:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:55:13,995 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:55:13,997 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:55:14,534 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:55:14,836 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:55:14,836 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 10:55:14,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:55:14 BoogieIcfgContainer [2022-12-14 10:55:14,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:55:14,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:55:14,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:55:14,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:55:14,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:55:13" (1/3) ... [2022-12-14 10:55:14,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1394258c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:55:14, skipping insertion in model container [2022-12-14 10:55:14,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:55:13" (2/3) ... [2022-12-14 10:55:14,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1394258c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:55:14, skipping insertion in model container [2022-12-14 10:55:14,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:55:14" (3/3) ... [2022-12-14 10:55:14,847 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product15.cil.c [2022-12-14 10:55:14,866 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:55:14,866 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:55:14,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:55:14,923 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;@3f566832, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:55:14,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:55:14,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-12-14 10:55:14,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 10:55:14,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:55:14,941 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] [2022-12-14 10:55:14,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:55:14,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:55:14,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1710472627, now seen corresponding path program 1 times [2022-12-14 10:55:14,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:55:14,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105007473] [2022-12-14 10:55:14,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:55:14,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:55:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:55:15,187 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 10:55:15,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:55:15,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105007473] [2022-12-14 10:55:15,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105007473] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:55:15,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:55:15,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:55:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500039255] [2022-12-14 10:55:15,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:55:15,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:55:15,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:55:15,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:55:15,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:55:15,216 INFO L87 Difference]: Start difference. First operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:55:15,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:55:15,297 INFO L93 Difference]: Finished difference Result 219 states and 294 transitions. [2022-12-14 10:55:15,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:55:15,299 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2022-12-14 10:55:15,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:55:15,306 INFO L225 Difference]: With dead ends: 219 [2022-12-14 10:55:15,306 INFO L226 Difference]: Without dead ends: 148 [2022-12-14 10:55:15,308 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 10:55:15,311 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:55:15,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:55:15,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-12-14 10:55:15,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-12-14 10:55:15,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 91 states have internal predecessors, (118), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-12-14 10:55:15,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 201 transitions. [2022-12-14 10:55:15,347 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 201 transitions. Word has length 56 [2022-12-14 10:55:15,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:55:15,348 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 201 transitions. [2022-12-14 10:55:15,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:55:15,348 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 201 transitions. [2022-12-14 10:55:15,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 10:55:15,350 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:55:15,350 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] [2022-12-14 10:55:15,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:55:15,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:55:15,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:55:15,351 INFO L85 PathProgramCache]: Analyzing trace with hash 636213266, now seen corresponding path program 1 times [2022-12-14 10:55:15,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:55:15,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67062511] [2022-12-14 10:55:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:55:15,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:55:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:55:15,463 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 10:55:15,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:55:15,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67062511] [2022-12-14 10:55:15,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67062511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:55:15,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:55:15,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:55:15,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363198301] [2022-12-14 10:55:15,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:55:15,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:55:15,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:55:15,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:55:15,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:55:15,466 INFO L87 Difference]: Start difference. First operand 148 states and 201 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:55:15,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:55:15,545 INFO L93 Difference]: Finished difference Result 215 states and 282 transitions. [2022-12-14 10:55:15,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:55:15,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-12-14 10:55:15,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:55:15,547 INFO L225 Difference]: With dead ends: 215 [2022-12-14 10:55:15,547 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 10:55:15,548 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 10:55:15,548 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:55:15,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:55:15,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 10:55:15,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 10:55:15,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 93 states have internal predecessors, (120), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-12-14 10:55:15,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 203 transitions. [2022-12-14 10:55:15,559 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 203 transitions. Word has length 57 [2022-12-14 10:55:15,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:55:15,560 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 203 transitions. [2022-12-14 10:55:15,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:55:15,560 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 203 transitions. [2022-12-14 10:55:15,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 10:55:15,561 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:55:15,561 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] [2022-12-14 10:55:15,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:55:15,561 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:55:15,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:55:15,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1740558832, now seen corresponding path program 1 times [2022-12-14 10:55:15,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:55:15,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541549584] [2022-12-14 10:55:15,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:55:15,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:55:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:55:15,624 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 10:55:15,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:55:15,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541549584] [2022-12-14 10:55:15,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541549584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:55:15,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:55:15,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:55:15,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505329981] [2022-12-14 10:55:15,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:55:15,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:55:15,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:55:15,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:55:15,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:55:15,627 INFO L87 Difference]: Start difference. First operand 150 states and 203 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:55:15,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:55:15,720 INFO L93 Difference]: Finished difference Result 330 states and 465 transitions. [2022-12-14 10:55:15,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:55:15,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2022-12-14 10:55:15,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:55:15,722 INFO L225 Difference]: With dead ends: 330 [2022-12-14 10:55:15,723 INFO L226 Difference]: Without dead ends: 198 [2022-12-14 10:55:15,724 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 10:55:15,725 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 57 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:55:15,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 362 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:55:15,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-12-14 10:55:15,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 193. [2022-12-14 10:55:15,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 122 states have (on average 1.4180327868852458) internal successors, (173), 125 states have internal predecessors, (173), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-12-14 10:55:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 278 transitions. [2022-12-14 10:55:15,744 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 278 transitions. Word has length 62 [2022-12-14 10:55:15,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:55:15,745 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 278 transitions. [2022-12-14 10:55:15,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-14 10:55:15,745 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 278 transitions. [2022-12-14 10:55:15,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 10:55:15,747 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:55:15,748 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] [2022-12-14 10:55:15,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:55:15,748 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:55:15,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:55:15,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1640523740, now seen corresponding path program 1 times [2022-12-14 10:55:15,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:55:15,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761874788] [2022-12-14 10:55:15,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:55:15,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:55:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:55:15,894 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 10:55:15,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:55:15,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761874788] [2022-12-14 10:55:15,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761874788] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:55:15,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589808302] [2022-12-14 10:55:15,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:55:15,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:55:15,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:55:15,897 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:55:15,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:55:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:55:16,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:55:16,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:55:16,131 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 10:55:16,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:55:16,175 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 10:55:16,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589808302] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:55:16,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1649263317] [2022-12-14 10:55:16,191 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-12-14 10:55:16,191 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:55:16,194 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:55:16,198 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:55:16,198 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:55:49,982 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-12-14 10:55:50,274 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 10:55:50,571 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 258 for LOIs [2022-12-14 10:55:52,144 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 238 for LOIs [2022-12-14 10:55:52,180 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 260 for LOIs [2022-12-14 10:55:55,952 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 230 for LOIs [2022-12-14 10:55:55,985 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-12-14 10:55:59,074 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:56:39,356 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 563 DAG size of output: 421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:56:58,276 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 564 DAG size of output: 422 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 10:57:27,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1649263317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:57:27,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:57:27,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [4, 4, 4] total 45 [2022-12-14 10:57:27,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760050172] [2022-12-14 10:57:27,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:57:27,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-14 10:57:27,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:57:27,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-14 10:57:27,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1862, Unknown=0, NotChecked=0, Total=1980 [2022-12-14 10:57:27,232 INFO L87 Difference]: Start difference. First operand 193 states and 278 transitions. Second operand has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 10:58:02,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:58:02,222 INFO L93 Difference]: Finished difference Result 550 states and 872 transitions. [2022-12-14 10:58:02,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-14 10:58:02,223 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 63 [2022-12-14 10:58:02,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:58:02,225 INFO L225 Difference]: With dead ends: 550 [2022-12-14 10:58:02,225 INFO L226 Difference]: Without dead ends: 375 [2022-12-14 10:58:02,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 108.8s TimeCoverageRelationStatistics Valid=183, Invalid=2679, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 10:58:02,227 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 268 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 5011 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 4286 SdHoareTripleChecker+Invalid, 5042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 5011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:58:02,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 4286 Invalid, 5042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 5011 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2022-12-14 10:58:02,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-12-14 10:58:02,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 279. [2022-12-14 10:58:02,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 198 states have (on average 1.4747474747474747) internal successors, (292), 201 states have internal predecessors, (292), 59 states have call successors, (59), 23 states have call predecessors, (59), 21 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2022-12-14 10:58:02,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 409 transitions. [2022-12-14 10:58:02,346 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 409 transitions. Word has length 63 [2022-12-14 10:58:02,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:58:02,346 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 409 transitions. [2022-12-14 10:58:02,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 25 states have internal predecessors, (33), 13 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 10:58:02,346 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 409 transitions. [2022-12-14 10:58:02,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 10:58:02,348 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:58:02,349 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] [2022-12-14 10:58:02,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:58:02,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:58:02,551 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:58:02,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:58:02,552 INFO L85 PathProgramCache]: Analyzing trace with hash -239785917, now seen corresponding path program 1 times [2022-12-14 10:58:02,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:58:02,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880964859] [2022-12-14 10:58:02,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:58:02,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:58:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:58:02,648 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 10:58:02,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:58:02,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880964859] [2022-12-14 10:58:02,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880964859] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:58:02,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:58:02,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:58:02,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517995973] [2022-12-14 10:58:02,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:58:02,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:58:02,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:58:02,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:58:02,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:58:02,650 INFO L87 Difference]: Start difference. First operand 279 states and 409 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 10:58:02,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:58:02,946 INFO L93 Difference]: Finished difference Result 631 states and 952 transitions. [2022-12-14 10:58:02,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:58:02,947 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2022-12-14 10:58:02,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:58:02,949 INFO L225 Difference]: With dead ends: 631 [2022-12-14 10:58:02,949 INFO L226 Difference]: Without dead ends: 394 [2022-12-14 10:58:02,950 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 10:58:02,951 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 55 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:58:02,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 372 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:58:02,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-12-14 10:58:03,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 387. [2022-12-14 10:58:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 281 states have (on average 1.501779359430605) internal successors, (422), 284 states have internal predecessors, (422), 84 states have call successors, (84), 23 states have call predecessors, (84), 21 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2022-12-14 10:58:03,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 589 transitions. [2022-12-14 10:58:03,112 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 589 transitions. Word has length 68 [2022-12-14 10:58:03,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:58:03,112 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 589 transitions. [2022-12-14 10:58:03,112 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 10:58:03,113 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 589 transitions. [2022-12-14 10:58:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 10:58:03,114 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:58:03,114 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] [2022-12-14 10:58:03,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:58:03,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:58:03,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:58:03,115 INFO L85 PathProgramCache]: Analyzing trace with hash 276770612, now seen corresponding path program 1 times [2022-12-14 10:58:03,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:58:03,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105080005] [2022-12-14 10:58:03,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:58:03,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:58:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:58:03,229 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 10:58:03,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:58:03,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105080005] [2022-12-14 10:58:03,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105080005] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:58:03,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869219156] [2022-12-14 10:58:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:58:03,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:58:03,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:58:03,231 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:58:03,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:58:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:58:03,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:58:03,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:58:03,419 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 10:58:03,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:58:03,451 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 10:58:03,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869219156] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:58:03,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2143499603] [2022-12-14 10:58:03,455 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-12-14 10:58:03,455 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:58:03,456 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:58:03,456 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:58:03,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:58:29,985 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 10:58:30,275 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 444 for LOIs [2022-12-14 10:58:30,556 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 252 for LOIs [2022-12-14 10:58:32,045 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 232 for LOIs [2022-12-14 10:58:32,080 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 252 for LOIs [2022-12-14 10:58:35,853 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 224 for LOIs [2022-12-14 10:58:35,883 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-12-14 10:58:37,640 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:59:41,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2143499603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:59:41,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:59:41,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [4, 4, 4] total 49 [2022-12-14 10:59:41,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911293288] [2022-12-14 10:59:41,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:59:41,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-12-14 10:59:41,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:59:41,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-12-14 10:59:41,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=2200, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 10:59:41,269 INFO L87 Difference]: Start difference. First operand 387 states and 589 transitions. Second operand has 44 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 11:00:12,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:00:12,598 INFO L93 Difference]: Finished difference Result 789 states and 1223 transitions. [2022-12-14 11:00:12,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-14 11:00:12,599 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 69 [2022-12-14 11:00:12,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:00:12,602 INFO L225 Difference]: With dead ends: 789 [2022-12-14 11:00:12,602 INFO L226 Difference]: Without dead ends: 524 [2022-12-14 11:00:12,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 79.8s TimeCoverageRelationStatistics Valid=267, Invalid=3393, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 11:00:12,605 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 245 mSDsluCounter, 4065 mSDsCounter, 0 mSdLazyCounter, 5135 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 4269 SdHoareTripleChecker+Invalid, 5168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 5135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:00:12,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 4269 Invalid, 5168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 5135 Invalid, 0 Unknown, 0 Unchecked, 14.5s Time] [2022-12-14 11:00:12,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-12-14 11:00:12,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 400. [2022-12-14 11:00:12,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 291 states have (on average 1.5017182130584192) internal successors, (437), 295 states have internal predecessors, (437), 86 states have call successors, (86), 24 states have call predecessors, (86), 22 states have return successors, (85), 82 states have call predecessors, (85), 85 states have call successors, (85) [2022-12-14 11:00:12,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 608 transitions. [2022-12-14 11:00:12,806 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 608 transitions. Word has length 69 [2022-12-14 11:00:12,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:00:12,807 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 608 transitions. [2022-12-14 11:00:12,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 30 states have (on average 1.2) internal successors, (36), 28 states have internal predecessors, (36), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 11:00:12,807 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 608 transitions. [2022-12-14 11:00:12,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-14 11:00:12,810 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:00:12,810 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] [2022-12-14 11:00:12,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:00:13,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 11:00:13,011 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:00:13,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:00:13,013 INFO L85 PathProgramCache]: Analyzing trace with hash 786940342, now seen corresponding path program 1 times [2022-12-14 11:00:13,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:00:13,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479537957] [2022-12-14 11:00:13,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:00:13,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:00:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:00:13,141 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 11:00:13,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:00:13,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479537957] [2022-12-14 11:00:13,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479537957] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:00:13,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210877130] [2022-12-14 11:00:13,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:00:13,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:00:13,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:00:13,142 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:00:13,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:00:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:00:13,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:00:13,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:00:13,341 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 11:00:13,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:00:13,372 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 11:00:13,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210877130] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:00:13,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [179044629] [2022-12-14 11:00:13,375 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 11:00:13,375 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:00:13,376 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:00:13,376 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:00:13,376 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:01:15,793 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 11:01:16,081 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 422 for LOIs [2022-12-14 11:01:16,354 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 213 for LOIs [2022-12-14 11:01:16,409 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 11:01:16,707 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 419 for LOIs [2022-12-14 11:01:16,986 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 230 for LOIs [2022-12-14 11:01:18,187 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 210 for LOIs [2022-12-14 11:01:18,218 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 230 for LOIs [2022-12-14 11:01:21,313 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 202 for LOIs [2022-12-14 11:01:21,339 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 220 for LOIs [2022-12-14 11:01:21,424 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:02:11,048 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 532 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:02:24,314 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 527 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:02:34,112 WARN L233 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 530 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:02:54,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [179044629] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:02:54,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:02:54,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [4, 4, 4] total 55 [2022-12-14 11:02:54,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600774991] [2022-12-14 11:02:54,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:02:54,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-14 11:02:54,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:02:54,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-14 11:02:54,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=2814, Unknown=0, NotChecked=0, Total=2970 [2022-12-14 11:02:54,956 INFO L87 Difference]: Start difference. First operand 400 states and 608 transitions. Second operand has 50 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 29 states have internal predecessors, (36), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 11:03:27,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:03:27,518 INFO L93 Difference]: Finished difference Result 818 states and 1267 transitions. [2022-12-14 11:03:27,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-14 11:03:27,519 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 29 states have internal predecessors, (36), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 72 [2022-12-14 11:03:27,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:03:27,522 INFO L225 Difference]: With dead ends: 818 [2022-12-14 11:03:27,522 INFO L226 Difference]: Without dead ends: 553 [2022-12-14 11:03:27,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 107.3s TimeCoverageRelationStatistics Valid=217, Invalid=3815, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 11:03:27,525 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 217 mSDsluCounter, 4463 mSDsCounter, 0 mSdLazyCounter, 6790 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 4673 SdHoareTripleChecker+Invalid, 6812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 6790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:03:27,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 4673 Invalid, 6812 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 6790 Invalid, 0 Unknown, 0 Unchecked, 18.1s Time] [2022-12-14 11:03:27,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-12-14 11:03:27,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 475. [2022-12-14 11:03:27,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 350 states have (on average 1.4857142857142858) internal successors, (520), 356 states have internal predecessors, (520), 96 states have call successors, (96), 32 states have call predecessors, (96), 28 states have return successors, (95), 88 states have call predecessors, (95), 95 states have call successors, (95) [2022-12-14 11:03:27,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 711 transitions. [2022-12-14 11:03:27,817 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 711 transitions. Word has length 72 [2022-12-14 11:03:27,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:03:27,817 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 711 transitions. [2022-12-14 11:03:27,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 29 states have internal predecessors, (36), 16 states have call successors, (16), 11 states have call predecessors, (16), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 11:03:27,817 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 711 transitions. [2022-12-14 11:03:27,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 11:03:27,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:03:27,819 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:03:27,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:03:28,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:03:28,019 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:03:28,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:03:28,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1290860303, now seen corresponding path program 1 times [2022-12-14 11:03:28,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:03:28,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386887623] [2022-12-14 11:03:28,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:03:28,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:03:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:03:28,115 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 11:03:28,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:03:28,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386887623] [2022-12-14 11:03:28,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386887623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:03:28,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:03:28,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:03:28,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194185885] [2022-12-14 11:03:28,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:03:28,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:03:28,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:03:28,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:03:28,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:03:28,117 INFO L87 Difference]: Start difference. First operand 475 states and 711 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:03:28,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:03:28,469 INFO L93 Difference]: Finished difference Result 560 states and 811 transitions. [2022-12-14 11:03:28,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:03:28,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2022-12-14 11:03:28,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:03:28,471 INFO L225 Difference]: With dead ends: 560 [2022-12-14 11:03:28,471 INFO L226 Difference]: Without dead ends: 497 [2022-12-14 11:03:28,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 11:03:28,472 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 119 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:03:28,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 228 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:03:28,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-12-14 11:03:28,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 495. [2022-12-14 11:03:28,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 360 states have (on average 1.4722222222222223) internal successors, (530), 367 states have internal predecessors, (530), 100 states have call successors, (100), 39 states have call predecessors, (100), 34 states have return successors, (99), 91 states have call predecessors, (99), 99 states have call successors, (99) [2022-12-14 11:03:28,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 729 transitions. [2022-12-14 11:03:28,743 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 729 transitions. Word has length 74 [2022-12-14 11:03:28,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:03:28,743 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 729 transitions. [2022-12-14 11:03:28,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 11:03:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 729 transitions. [2022-12-14 11:03:28,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 11:03:28,745 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:03:28,745 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:03:28,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 11:03:28,745 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:03:28,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:03:28,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1408977028, now seen corresponding path program 1 times [2022-12-14 11:03:28,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:03:28,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817530025] [2022-12-14 11:03:28,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:03:28,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:03:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:03:28,824 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 11:03:28,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:03:28,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817530025] [2022-12-14 11:03:28,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817530025] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:03:28,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131140840] [2022-12-14 11:03:28,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:03:28,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:03:28,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:03:28,826 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:03:28,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:03:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:03:29,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:03:29,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:03:29,027 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 11:03:29,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:03:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 11:03:29,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131140840] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:03:29,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [826206532] [2022-12-14 11:03:29,083 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2022-12-14 11:03:29,083 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:03:29,084 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:03:29,084 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:03:29,084 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:04:23,384 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 11:04:23,667 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 11:04:23,954 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 470 for LOIs [2022-12-14 11:05:07,417 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 450 for LOIs [2022-12-14 11:05:07,690 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 434 for LOIs [2022-12-14 11:05:19,963 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 415 for LOIs [2022-12-14 11:05:20,186 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 231 for LOIs [2022-12-14 11:05:20,223 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 415 for LOIs [2022-12-14 11:05:20,445 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:07:45,356 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12982#(and (<= |outgoing_findPublicKey_~retValue_acc~31#1| 0) (<= |outgoing_outgoing__wrappee__Keys_~msg#1| 2147483647) (= ~__ste_Client_Keyring1_User2~0 0) (= ~__GUIDSL_NON_TERMINAL_main~0 0) (<= 0 (+ |outgoing_outgoing__wrappee__Keys_#in~client#1| 2147483648)) (<= 0 (+ |outgoing_getClientId_~retValue_acc~33#1| 2147483648)) (<= ~queued_message~0 2147483647) (<= 0 (+ |outgoing_~msg#1| 2147483648)) (= ~__ste_email_subject0~0.offset 0) (= ~__SELECTED_FEATURE_Sign~0 0) (= 0 ~__ste_Client_AddressBook0_Address2~0) (= ~__ste_client_outbuffer3~0 0) (<= 0 (+ |outgoing_findPublicKey_~userid#1| 2147483648)) (<= 0 (+ 2147483648 |outgoing_getClientId_#res#1|)) (= ~__ste_Client_counter~0 0) (<= |outgoing_outgoing__wrappee__Keys_~client#1| 2147483647) (= ~__ste_Client_Keyring1_PublicKey2~0 0) (<= |outgoing_outgoing__wrappee__Keys_~tmp~7#1| 2147483647) (<= |old(~in_encrypted~0)| 2147483647) (<= |outgoing_mail_#in~client#1| 2147483647) (<= 0 (+ |outgoing_~receiver~0#1| 2147483648)) (<= |outgoing_findPublicKey_#in~handle#1| 2147483647) (= ~__ste_Client_AddressBook2_Alias0~0 0) (= 0 ~__ste_email_subject0~0.base) (= ~__ste_Client_AddressBook2_Alias1~0 0) (<= 0 (+ |outgoing_outgoing__wrappee__Keys_~tmp~7#1| 2147483648)) (= ~__ste_Client_Keyring2_PublicKey2~0 0) (= ~__ste_client_forwardReceiver3~0 0) (= |outgoing___utac_acc__EncryptForward_spec__2_~tmp~14#1| 0) (= ~__ste_client_name2~0.offset 0) (= ~__ste_client_name1~0.base 0) (<= 0 ~__ste_client_autoResponse1~0) (= ~__SELECTED_FEATURE_Verify~0 0) (= ~__ste_Client_Keyring1_User0~0 0) (<= |outgoing_~tmp~8#1| 2147483647) (<= 0 (+ |outgoing_findPublicKey_~handle#1| 2147483648)) (<= |outgoing_~client#1| 2147483647) (<= ~__ste_client_idCounter2~0 3) (= ~__ste_email_body1~0.offset 0) (<= 0 (+ |outgoing_getClientId_~handle#1| 2147483648)) (= ~__SELECTED_FEATURE_Encrypt~0 0) (= ~__ste_Client_AddressBook1_Address2~0 0) (= ~__ste_ClientAddressBook_size1~0 0) (= ~__ste_Client_Keyring0_PublicKey0~0 0) (= ~__ste_Email_counter~0 0) (= ~__ste_ClientKeyring_size1~0 0) (= ~__ste_email_body0~0.offset 0) (= ~__ste_email_isSignatureVerified0~0 0) (= ~__ste_Client_Keyring0_User2~0 0) (<= |outgoing_getClientId_~handle#1| 2147483647) (= ~__ste_ClientAddressBook_size0~0 0) (<= |old(~queued_client~0)| 2147483647) (= ~__ste_Client_Keyring0_User1~0 0) (= ~__ste_Client_AddressBook1_Alias1~0 0) (= ~__ste_client_name1~0.offset 0) (<= |outgoing_outgoing__wrappee__Keys_#in~msg#1| 2147483647) (<= |outgoing_getClientId_#res#1| 2147483647) (= ~head~0.offset 0) (= ~__ste_client_name0~0.offset 0) (<= |outgoing_findPublicKey_~handle#1| 2147483647) (= ~__ste_Client_Keyring0_PublicKey2~0 0) (<= 0 (+ |outgoing_outgoing__wrappee__Keys_~client#1| 2147483648)) (<= 0 (+ ~queued_client~0 2147483648)) (<= ~__ste_client_privateKey2~0 789) (= ~__ste_Client_Keyring1_PublicKey0~0 0) (<= |outgoing_#in~client#1| 2147483647) (= |outgoing___utac_acc__EncryptForward_spec__2_~__cil_tmp3~3#1.base| 24) (<= ~queue_empty~0 1) (= ~__ste_email_signKey0~0 0) (= ~__SELECTED_FEATURE_Decrypt~0 0) (<= 0 (+ ~queued_message~0 2147483648)) (<= 0 (+ |outgoing_mail_~msg#1| 2147483648)) (<= 0 (+ |outgoing___utac_acc__EncryptForward_spec__2_#in~msg#1| 2147483648)) (<= 0 |outgoing_~tmp___0~1#1|) (= ~__SELECTED_FEATURE_Keys~0 0) (<= 0 (+ |outgoing_mail_#in~msg#1| 2147483648)) (= ~__SELECTED_FEATURE_AddressBook~0 0) (= ~__ste_client_forwardReceiver2~0 0) (= ~__ste_Client_Keyring0_PublicKey1~0 0) (<= 0 |old(~queue_empty~0)|) (= ~__SELECTED_FEATURE_Forward~0 0) (= ~__ste_Client_Keyring0_User0~0 0) (= ~__ste_Client_Keyring2_PublicKey1~0 0) (= ~__ste_email_isSigned1~0 0) (= ~__ste_email_body0~0.base 0) (= ~__ste_Client_AddressBook0_Alias0~0 0) (= ~__ste_email_id0~0 0) (<= |outgoing_~receiver~0#1| 2147483647) (<= 0 (+ |outgoing_~client#1| 2147483648)) (<= ~__ste_client_autoResponse0~0 0) (<= |outgoing___utac_acc__EncryptForward_spec__2_~msg#1| 2147483647) (<= 0 ~queue_empty~0) (<= ~in_encrypted~0 2147483647) (<= 0 (+ |outgoing_~tmp~8#1| 2147483648)) (<= 3 ~__ste_client_idCounter2~0) (= ~__ste_Client_AddressBook2_Address2~0 0) (= 3 ~chuck~0) (<= 0 (+ |outgoing_outgoing__wrappee__Keys_~msg#1| 2147483648)) (= ~__ste_Client_AddressBook2_Address1~0 0) (<= 0 (+ |old(~in_encrypted~0)| 2147483648)) (<= |outgoing_~tmp___0~1#1| 0) (<= 0 ~__ste_client_autoResponse0~0) (<= 0 (+ |outgoing_findPublicKey_#in~userid#1| 2147483648)) (= ~__ste_Client_AddressBook1_Alias2~0 0) (<= |outgoing_mail_~__utac__ad__arg1~0#1| 2147483647) (= ~__ste_client_outbuffer0~0 0) (<= |outgoing_findPublicKey_#res#1| 0) (<= 789 ~__ste_client_privateKey2~0) (<= |outgoing_#in~msg#1| 2147483647) (<= 0 (+ |outgoing_#in~client#1| 2147483648)) (<= |outgoing_getClientId_~retValue_acc~33#1| 2147483647) (<= 0 (+ |outgoing_findPublicKey_#in~handle#1| 2147483648)) (<= 0 (+ |old(~queued_client~0)| 2147483648)) (= ~__SELECTED_FEATURE_Base~0 0) (<= 0 (+ |old(~queued_message~0)| 2147483648)) (= ~__ste_client_forwardReceiver0~0 0) (<= |outgoing_getClientId_#in~handle#1| 2147483647) (= ~__ste_Client_Keyring2_User0~0 0) (= ~rjh~0 2) (= 0 ~__ste_Client_AddressBook0_Address1~0) (= ~__ste_Client_AddressBook2_Address0~0 0) (= ~__ste_email_isSignatureVerified1~0 0) (= ~__ste_Client_Keyring1_PublicKey1~0 0) (<= 0 (+ |outgoing_getClientId_#in~handle#1| 2147483648)) (= ~__ste_Client_Keyring2_PublicKey0~0 0) (= ~__ste_Client_AddressBook1_Address0~0 0) (= ~__ste_client_name2~0.base 0) (<= 0 (+ 2147483648 |outgoing_mail_~client#1|)) (<= |outgoing_mail_~client#1| 2147483647) (= ~__ste_email_subject1~0.base 0) (<= |outgoing_mail_~msg#1| 2147483647) (<= |old(~queue_empty~0)| 1) (<= |outgoing_mail_#in~msg#1| 2147483647) (= ~__ste_Client_AddressBook1_Alias0~0 0) (<= 0 (+ |outgoing_#in~msg#1| 2147483648)) (= ~__ste_Client_Keyring2_User2~0 0) (= ~head~0.base 0) (<= ~__ste_client_forwardReceiver1~0 0) (<= |outgoing_findPublicKey_#in~userid#1| 2147483647) (= ~__ste_Client_Keyring1_User1~0 0) (<= 0 (+ |outgoing___utac_acc__EncryptForward_spec__2_~msg#1| 2147483648)) (= |#NULL.offset| 0) (<= |outgoing_~msg#1| 2147483647) (= ~__ste_Client_AddressBook2_Alias2~0 0) (<= ~__ste_Client_Keyring2_User1~0 0) (<= 0 ~__ste_email_isSigned0~0) (<= |old(~queued_message~0)| 2147483647) (<= |outgoing___utac_acc__EncryptForward_spec__2_#in~msg#1| 2147483647) (<= 0 ~__ste_client_autoResponse2~0) (= ~__ste_email_subject1~0.offset 0) (= ~__ste_Client_AddressBook0_Alias2~0 0) (<= |outgoing_findPublicKey_~userid#1| 2147483647) (= ~__ste_ClientKeyring_size0~0 0) (<= 0 (+ |outgoing_outgoing__wrappee__Keys_#in~msg#1| 2147483648)) (<= 0 ~__ste_Client_Keyring2_User1~0) (= ~__ste_Client_AddressBook1_Address1~0 0) (= 0 ~__ste_Client_AddressBook0_Address0~0) (= ~__ste_client_outbuffer1~0 0) (= ~__ste_Client_AddressBook0_Alias1~0 0) (= ~__GUIDSL_ROOT_PRODUCTION~0 0) (<= ~queued_client~0 2147483647) (<= |outgoing_outgoing__wrappee__Keys_#in~client#1| 2147483647) (<= 0 ~__ste_client_forwardReceiver1~0) (<= 0 |outgoing_findPublicKey_~retValue_acc~31#1|) (= ~__ste_client_name0~0.base 0) (= ~__ste_email_id1~0 0) (<= 0 |outgoing_findPublicKey_#res#1|) (= ~__ste_client_outbuffer2~0 0) (<= ~bob~0 1) (<= |outgoing_~pubkey~0#1| 0) (<= 0 (+ |outgoing_mail_~__utac__ad__arg1~0#1| 2147483648)) (<= 0 |outgoing_~pubkey~0#1|) (<= 0 |#StackHeapBarrier|) (= |outgoing___utac_acc__EncryptForward_spec__2_~__cil_tmp3~3#1.offset| 0) (= ~__ste_ClientAddressBook_size2~0 0) (= ~__SELECTED_FEATURE_AutoResponder~0 0) (<= ~__ste_client_autoResponse2~0 0) (= ~__ste_email_body1~0.base 0) (<= ~__ste_email_isSigned0~0 0) (<= 1 ~bob~0) (<= 0 (+ |outgoing_mail_#in~client#1| 2147483648)) (= ~__ste_ClientKeyring_size2~0 0) (= |#NULL.base| 0) (<= 0 (+ ~in_encrypted~0 2147483648)) (= ~__ste_email_signKey1~0 0))' at error location [2022-12-14 11:07:45,356 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 11:07:45,356 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:07:45,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-14 11:07:45,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429499832] [2022-12-14 11:07:45,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 11:07:45,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 11:07:45,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:07:45,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 11:07:45,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=3674, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 11:07:45,358 INFO L87 Difference]: Start difference. First operand 495 states and 729 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 11:07:46,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:07:46,295 INFO L93 Difference]: Finished difference Result 1218 states and 1848 transitions. [2022-12-14 11:07:46,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:07:46,296 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 94 [2022-12-14 11:07:46,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:07:46,299 INFO L225 Difference]: With dead ends: 1218 [2022-12-14 11:07:46,299 INFO L226 Difference]: Without dead ends: 1093 [2022-12-14 11:07:46,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 221 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 144.8s TimeCoverageRelationStatistics Valid=232, Invalid=3674, Unknown=0, NotChecked=0, Total=3906 [2022-12-14 11:07:46,301 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 237 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:07:46,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 613 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:07:46,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2022-12-14 11:07:46,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1070. [2022-12-14 11:07:46,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 820 states have (on average 1.4939024390243902) internal successors, (1225), 831 states have internal predecessors, (1225), 215 states have call successors, (215), 39 states have call predecessors, (215), 34 states have return successors, (214), 202 states have call predecessors, (214), 214 states have call successors, (214) [2022-12-14 11:07:46,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1654 transitions. [2022-12-14 11:07:46,983 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1654 transitions. Word has length 94 [2022-12-14 11:07:46,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:07:46,983 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1654 transitions. [2022-12-14 11:07:46,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 11:07:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1654 transitions. [2022-12-14 11:07:46,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-14 11:07:46,988 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:07:46,988 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:46,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 11:07:47,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:07:47,189 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:07:47,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:07:47,190 INFO L85 PathProgramCache]: Analyzing trace with hash 645781085, now seen corresponding path program 1 times [2022-12-14 11:07:47,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:07:47,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249506629] [2022-12-14 11:07:47,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:07:47,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:07:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:07:47,392 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 11:07:47,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:07:47,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249506629] [2022-12-14 11:07:47,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249506629] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:07:47,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:07:47,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:07:47,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022856553] [2022-12-14 11:07:47,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:07:47,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:07:47,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:07:47,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:07:47,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:07:47,393 INFO L87 Difference]: Start difference. First operand 1070 states and 1654 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 11:07:48,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:07:48,413 INFO L93 Difference]: Finished difference Result 1172 states and 1770 transitions. [2022-12-14 11:07:48,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:07:48,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 110 [2022-12-14 11:07:48,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:07:48,417 INFO L225 Difference]: With dead ends: 1172 [2022-12-14 11:07:48,417 INFO L226 Difference]: Without dead ends: 1076 [2022-12-14 11:07:48,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:07:48,418 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 148 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:07:48,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 333 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:07:48,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-12-14 11:07:49,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1076. [2022-12-14 11:07:49,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 823 states have (on average 1.4896719319562577) internal successors, (1226), 834 states have internal predecessors, (1226), 215 states have call successors, (215), 42 states have call predecessors, (215), 37 states have return successors, (214), 202 states have call predecessors, (214), 214 states have call successors, (214) [2022-12-14 11:07:49,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1655 transitions. [2022-12-14 11:07:49,093 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1655 transitions. Word has length 110 [2022-12-14 11:07:49,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:07:49,093 INFO L495 AbstractCegarLoop]: Abstraction has 1076 states and 1655 transitions. [2022-12-14 11:07:49,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 11:07:49,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1655 transitions. [2022-12-14 11:07:49,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 11:07:49,096 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:07:49,097 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:49,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 11:07:49,097 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:07:49,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:07:49,097 INFO L85 PathProgramCache]: Analyzing trace with hash 544694736, now seen corresponding path program 1 times [2022-12-14 11:07:49,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:07:49,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000017170] [2022-12-14 11:07:49,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:07:49,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:07:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:07:49,620 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 11:07:49,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:07:49,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000017170] [2022-12-14 11:07:49,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000017170] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:07:49,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83394757] [2022-12-14 11:07:49,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:07:49,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:07:49,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:07:49,621 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:07:49,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f24f4d87-f5af-4ec5-bc80-e9931380cc20/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 11:07:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:07:49,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 78 conjunts are in the unsatisfiable core [2022-12-14 11:07:49,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:07:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 11:07:50,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:07:53,849 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-14 11:07:53,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83394757] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:07:53,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1756901804] [2022-12-14 11:07:53,851 INFO L159 IcfgInterpreter]: Started Sifa with 91 locations of interest [2022-12-14 11:07:53,851 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:07:53,851 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:07:53,851 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:07:53,851 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:08:39,992 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-12-14 11:08:40,279 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 448 for LOIs [2022-12-14 11:08:40,568 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 255 for LOIs [2022-12-14 11:08:42,934 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 528 for LOIs [2022-12-14 11:09:05,266 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 224 for LOIs [2022-12-14 11:09:05,296 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 421 for LOIs [2022-12-14 11:09:05,530 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 479 for LOIs [2022-12-14 11:09:07,138 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 424 for LOIs [2022-12-14 11:09:07,385 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 426 for LOIs [2022-12-14 11:09:07,873 INFO L180 IcfgInterpreter]: Interpretation finished