./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS --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 6360accf87941df9e6bbc5dca5477ecef598d17cc597fc561012b4ee441ae425 --- 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-8393723 [2022-11-19 07:41:03,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:41:03,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:41:03,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:41:03,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:41:03,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:41:03,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:41:03,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:41:03,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:41:03,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:41:03,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:41:03,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:41:03,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:41:03,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:41:03,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:41:03,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:41:03,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:41:03,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:41:03,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:41:03,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:41:03,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:41:03,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:41:03,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:41:03,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:41:03,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:41:03,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:41:03,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:41:03,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:41:03,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:41:03,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:41:03,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:41:03,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:41:03,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:41:03,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:41:03,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:41:03,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:41:03,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:41:03,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:41:03,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:41:03,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:41:03,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:41:03,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:41:04,008 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:41:04,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:41:04,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:41:04,009 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:41:04,009 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:41:04,010 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:41:04,010 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:41:04,010 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:41:04,010 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:41:04,011 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:41:04,011 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:41:04,011 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:41:04,011 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:41:04,011 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:41:04,012 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:41:04,012 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:41:04,012 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:41:04,012 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:41:04,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:41:04,013 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:41:04,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:41:04,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:41:04,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:41:04,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:41:04,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:41:04,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:41:04,021 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:41:04,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:41:04,022 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:41:04,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:41:04,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:41:04,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:41:04,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:41:04,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:41:04,023 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:41:04,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:41:04,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:41:04,025 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:41:04,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:41:04,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:41:04,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:41:04,025 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_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6360accf87941df9e6bbc5dca5477ecef598d17cc597fc561012b4ee441ae425 [2022-11-19 07:41:04,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:41:04,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:41:04,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:41:04,359 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:41:04,360 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:41:04,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/email_spec0_product34.cil.c [2022-11-19 07:41:04,444 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/data/ffab7f632/7c35948626834f8a8460ae62d582eea8/FLAG49982c4cb [2022-11-19 07:41:05,097 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:41:05,098 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/sv-benchmarks/c/product-lines/email_spec0_product34.cil.c [2022-11-19 07:41:05,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/data/ffab7f632/7c35948626834f8a8460ae62d582eea8/FLAG49982c4cb [2022-11-19 07:41:05,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/data/ffab7f632/7c35948626834f8a8460ae62d582eea8 [2022-11-19 07:41:05,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:41:05,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:41:05,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:41:05,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:41:05,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:41:05,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:05" (1/1) ... [2022-11-19 07:41:05,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482a99d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05, skipping insertion in model container [2022-11-19 07:41:05,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:05" (1/1) ... [2022-11-19 07:41:05,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:41:05,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:41:05,739 WARN L234 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_730be603-4c1b-45b1-8d2d-340b697ac39f/sv-benchmarks/c/product-lines/email_spec0_product34.cil.c[12611,12624] [2022-11-19 07:41:06,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:41:06,039 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:41:06,064 WARN L234 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_730be603-4c1b-45b1-8d2d-340b697ac39f/sv-benchmarks/c/product-lines/email_spec0_product34.cil.c[12611,12624] [2022-11-19 07:41:06,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:41:06,176 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:41:06,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06 WrapperNode [2022-11-19 07:41:06,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:41:06,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:41:06,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:41:06,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:41:06,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (1/1) ... [2022-11-19 07:41:06,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (1/1) ... [2022-11-19 07:41:06,277 INFO L138 Inliner]: procedures = 134, calls = 236, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1087 [2022-11-19 07:41:06,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:41:06,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:41:06,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:41:06,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:41:06,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (1/1) ... [2022-11-19 07:41:06,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (1/1) ... [2022-11-19 07:41:06,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (1/1) ... [2022-11-19 07:41:06,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (1/1) ... [2022-11-19 07:41:06,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (1/1) ... [2022-11-19 07:41:06,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (1/1) ... [2022-11-19 07:41:06,328 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (1/1) ... [2022-11-19 07:41:06,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (1/1) ... [2022-11-19 07:41:06,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:41:06,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:41:06,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:41:06,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:41:06,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (1/1) ... [2022-11-19 07:41:06,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:41:06,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:41:06,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:41:06,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:41:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-19 07:41:06,440 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-19 07:41:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-19 07:41:06,440 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-19 07:41:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-19 07:41:06,440 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-19 07:41:06,440 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-19 07:41:06,440 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-19 07:41:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-19 07:41:06,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-19 07:41:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-19 07:41:06,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-19 07:41:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-19 07:41:06,441 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-19 07:41:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-19 07:41:06,442 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-19 07:41:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-19 07:41:06,442 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-19 07:41:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-19 07:41:06,442 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-19 07:41:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-19 07:41:06,442 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-19 07:41:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-19 07:41:06,443 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-19 07:41:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-19 07:41:06,443 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-19 07:41:06,444 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-19 07:41:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-19 07:41:06,444 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-19 07:41:06,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:41:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-19 07:41:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-19 07:41:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-19 07:41:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-19 07:41:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-19 07:41:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-19 07:41:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-19 07:41:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-19 07:41:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-19 07:41:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-19 07:41:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-19 07:41:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-19 07:41:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2022-11-19 07:41:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2022-11-19 07:41:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-19 07:41:06,450 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-19 07:41:06,450 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-19 07:41:06,451 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-19 07:41:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-19 07:41:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-19 07:41:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-19 07:41:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-19 07:41:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-19 07:41:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-19 07:41:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:41:06,454 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-19 07:41:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-19 07:41:06,454 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-19 07:41:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-19 07:41:06,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:41:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:41:06,816 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:41:06,818 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:41:07,885 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:41:08,558 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:41:08,558 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:41:08,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:08 BoogieIcfgContainer [2022-11-19 07:41:08,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:41:08,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:41:08,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:41:08,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:41:08,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:05" (1/3) ... [2022-11-19 07:41:08,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cce5ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:08, skipping insertion in model container [2022-11-19 07:41:08,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:06" (2/3) ... [2022-11-19 07:41:08,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cce5ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:08, skipping insertion in model container [2022-11-19 07:41:08,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:08" (3/3) ... [2022-11-19 07:41:08,570 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product34.cil.c [2022-11-19 07:41:08,589 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:41:08,589 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:41:08,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:41:08,655 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;@58d7a123, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:41:08,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:41:08,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 128 states have (on average 1.2890625) internal successors, (165), 133 states have internal predecessors, (165), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2022-11-19 07:41:08,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-19 07:41:08,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:41:08,677 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-19 07:41:08,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:41:08,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:41:08,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1376470297, now seen corresponding path program 1 times [2022-11-19 07:41:08,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:41:08,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043053615] [2022-11-19 07:41:08,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:41:08,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:41:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:41:09,136 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-19 07:41:09,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:41:09,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043053615] [2022-11-19 07:41:09,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043053615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:41:09,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:41:09,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:41:09,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779807456] [2022-11-19 07:41:09,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:41:09,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:41:09,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:41:09,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:41:09,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:41:09,189 INFO L87 Difference]: Start difference. First operand has 228 states, 128 states have (on average 1.2890625) internal successors, (165), 133 states have internal predecessors, (165), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:41:09,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:41:09,401 INFO L93 Difference]: Finished difference Result 364 states and 481 transitions. [2022-11-19 07:41:09,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:41:09,404 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2022-11-19 07:41:09,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:41:09,430 INFO L225 Difference]: With dead ends: 364 [2022-11-19 07:41:09,431 INFO L226 Difference]: Without dead ends: 225 [2022-11-19 07:41:09,441 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 [2022-11-19 07:41:09,446 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:41:09,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 258 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:41:09,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-19 07:41:09,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2022-11-19 07:41:09,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 126 states have (on average 1.2619047619047619) internal successors, (159), 130 states have internal predecessors, (159), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-19 07:41:09,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 298 transitions. [2022-11-19 07:41:09,540 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 298 transitions. Word has length 99 [2022-11-19 07:41:09,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:41:09,541 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 298 transitions. [2022-11-19 07:41:09,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:41:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 298 transitions. [2022-11-19 07:41:09,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-19 07:41:09,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:41:09,557 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-19 07:41:09,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:41:09,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:41:09,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:41:09,559 INFO L85 PathProgramCache]: Analyzing trace with hash 575419599, now seen corresponding path program 1 times [2022-11-19 07:41:09,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:41:09,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867080747] [2022-11-19 07:41:09,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:41:09,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:41:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:41:09,917 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-19 07:41:09,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:41:09,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867080747] [2022-11-19 07:41:09,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867080747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:41:09,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:41:09,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:41:09,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162381544] [2022-11-19 07:41:09,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:41:09,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:41:09,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:41:09,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:41:09,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:41:09,923 INFO L87 Difference]: Start difference. First operand 225 states and 298 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:41:10,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:41:10,068 INFO L93 Difference]: Finished difference Result 360 states and 466 transitions. [2022-11-19 07:41:10,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:41:10,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 100 [2022-11-19 07:41:10,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:41:10,078 INFO L225 Difference]: With dead ends: 360 [2022-11-19 07:41:10,079 INFO L226 Difference]: Without dead ends: 227 [2022-11-19 07:41:10,081 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 [2022-11-19 07:41:10,083 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:41:10,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:41:10,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-19 07:41:10,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2022-11-19 07:41:10,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 128 states have (on average 1.2578125) internal successors, (161), 132 states have internal predecessors, (161), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2022-11-19 07:41:10,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 300 transitions. [2022-11-19 07:41:10,117 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 300 transitions. Word has length 100 [2022-11-19 07:41:10,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:41:10,119 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 300 transitions. [2022-11-19 07:41:10,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:41:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 300 transitions. [2022-11-19 07:41:10,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-19 07:41:10,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:41:10,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1] [2022-11-19 07:41:10,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:41:10,128 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:41:10,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:41:10,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1100774068, now seen corresponding path program 1 times [2022-11-19 07:41:10,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:41:10,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082344470] [2022-11-19 07:41:10,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:41:10,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:41:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:41:10,391 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-19 07:41:10,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:41:10,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082344470] [2022-11-19 07:41:10,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082344470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:41:10,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:41:10,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:41:10,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745180827] [2022-11-19 07:41:10,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:41:10,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:41:10,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:41:10,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:41:10,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:41:10,394 INFO L87 Difference]: Start difference. First operand 227 states and 300 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 07:41:10,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:41:10,657 INFO L93 Difference]: Finished difference Result 489 states and 667 transitions. [2022-11-19 07:41:10,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:41:10,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 116 [2022-11-19 07:41:10,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:41:10,660 INFO L225 Difference]: With dead ends: 489 [2022-11-19 07:41:10,660 INFO L226 Difference]: Without dead ends: 280 [2022-11-19 07:41:10,662 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 [2022-11-19 07:41:10,663 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 59 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:41:10,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 526 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:41:10,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-11-19 07:41:10,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 275. [2022-11-19 07:41:10,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 162 states have (on average 1.3333333333333333) internal successors, (216), 166 states have internal predecessors, (216), 84 states have call successors, (84), 28 states have call predecessors, (84), 28 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2022-11-19 07:41:10,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 383 transitions. [2022-11-19 07:41:10,691 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 383 transitions. Word has length 116 [2022-11-19 07:41:10,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:41:10,691 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 383 transitions. [2022-11-19 07:41:10,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 07:41:10,692 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 383 transitions. [2022-11-19 07:41:10,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-19 07:41:10,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:41:10,695 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2022-11-19 07:41:10,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:41:10,696 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:41:10,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:41:10,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1573589522, now seen corresponding path program 1 times [2022-11-19 07:41:10,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:41:10,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732740657] [2022-11-19 07:41:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:41:10,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:41:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:41:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-19 07:41:10,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:41:10,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732740657] [2022-11-19 07:41:10,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732740657] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:41:10,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854199740] [2022-11-19 07:41:10,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:41:10,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:41:10,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:41:10,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:41:10,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:41:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:41:11,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 1296 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:41:11,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:41:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-19 07:41:11,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:41:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-19 07:41:11,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854199740] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:41:11,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [847544002] [2022-11-19 07:41:11,751 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-11-19 07:41:11,751 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:41:11,756 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:41:11,761 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:41:11,764 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:41:36,385 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 07:41:36,687 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 264 for LOIs [2022-11-19 07:41:38,753 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-19 07:41:39,161 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 266 for LOIs [2022-11-19 07:41:42,416 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 226 for LOIs [2022-11-19 07:41:42,452 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 234 for LOIs [2022-11-19 07:41:42,484 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-11-19 07:41:42,520 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-11-19 07:41:42,563 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:42:00,619 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:14,583 WARN L233 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 464 DAG size of output: 319 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:25,501 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 486 DAG size of output: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:42:45,797 WARN L233 SmtUtils]: Spent 10.35s on a formula simplification. DAG size of input: 580 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:43:22,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [847544002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:22,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:43:22,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [4, 4, 4] total 47 [2022-11-19 07:43:22,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137018585] [2022-11-19 07:43:22,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:22,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-19 07:43:22,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:22,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-19 07:43:22,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=2032, Unknown=0, NotChecked=0, Total=2162 [2022-11-19 07:43:22,165 INFO L87 Difference]: Start difference. First operand 275 states and 383 transitions. Second operand has 42 states, 28 states have (on average 1.9285714285714286) internal successors, (54), 26 states have internal predecessors, (54), 13 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2022-11-19 07:43:54,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:54,892 INFO L93 Difference]: Finished difference Result 620 states and 897 transitions. [2022-11-19 07:43:54,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-19 07:43:54,893 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 28 states have (on average 1.9285714285714286) internal successors, (54), 26 states have internal predecessors, (54), 13 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) Word has length 117 [2022-11-19 07:43:54,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:54,896 INFO L225 Difference]: With dead ends: 620 [2022-11-19 07:43:54,896 INFO L226 Difference]: Without dead ends: 363 [2022-11-19 07:43:54,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 109.3s TimeCoverageRelationStatistics Valid=156, Invalid=2394, Unknown=0, NotChecked=0, Total=2550 [2022-11-19 07:43:54,899 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 111 mSDsluCounter, 5545 mSDsCounter, 0 mSdLazyCounter, 5822 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 5822 SdHoareTripleChecker+Invalid, 5843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 5822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:54,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 5822 Invalid, 5843 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [21 Valid, 5822 Invalid, 0 Unknown, 0 Unchecked, 22.6s Time] [2022-11-19 07:43:54,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-19 07:43:55,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 322. [2022-11-19 07:43:55,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 198 states have (on average 1.3383838383838385) internal successors, (265), 202 states have internal predecessors, (265), 90 states have call successors, (90), 35 states have call predecessors, (90), 33 states have return successors, (89), 86 states have call predecessors, (89), 89 states have call successors, (89) [2022-11-19 07:43:55,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 444 transitions. [2022-11-19 07:43:55,078 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 444 transitions. Word has length 117 [2022-11-19 07:43:55,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:55,079 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 444 transitions. [2022-11-19 07:43:55,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 28 states have (on average 1.9285714285714286) internal successors, (54), 26 states have internal predecessors, (54), 13 states have call successors, (25), 9 states have call predecessors, (25), 7 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2022-11-19 07:43:55,079 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 444 transitions. [2022-11-19 07:43:55,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-19 07:43:55,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:55,082 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:43:55,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:43:55,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:55,299 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:43:55,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:55,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1930177145, now seen corresponding path program 1 times [2022-11-19 07:43:55,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:55,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149021998] [2022-11-19 07:43:55,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:55,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:55,435 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-19 07:43:55,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:55,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149021998] [2022-11-19 07:43:55,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149021998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:55,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:55,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:43:55,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379615645] [2022-11-19 07:43:55,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:55,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:43:55,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:55,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:43:55,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:43:55,438 INFO L87 Difference]: Start difference. First operand 322 states and 444 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 07:43:55,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:43:55,749 INFO L93 Difference]: Finished difference Result 746 states and 1068 transitions. [2022-11-19 07:43:55,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:43:55,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 122 [2022-11-19 07:43:55,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:43:55,756 INFO L225 Difference]: With dead ends: 746 [2022-11-19 07:43:55,756 INFO L226 Difference]: Without dead ends: 450 [2022-11-19 07:43:55,762 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 [2022-11-19 07:43:55,765 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 57 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:43:55,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 530 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:43:55,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-11-19 07:43:55,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 443. [2022-11-19 07:43:55,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 288 states have (on average 1.40625) internal successors, (405), 292 states have internal predecessors, (405), 121 states have call successors, (121), 35 states have call predecessors, (121), 33 states have return successors, (120), 117 states have call predecessors, (120), 120 states have call successors, (120) [2022-11-19 07:43:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 646 transitions. [2022-11-19 07:43:55,905 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 646 transitions. Word has length 122 [2022-11-19 07:43:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:43:55,905 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 646 transitions. [2022-11-19 07:43:55,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 07:43:55,906 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 646 transitions. [2022-11-19 07:43:55,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-19 07:43:55,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:55,909 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2022-11-19 07:43:55,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:43:55,909 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:43:55,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:55,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2069569831, now seen corresponding path program 1 times [2022-11-19 07:43:55,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:55,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496275428] [2022-11-19 07:43:55,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:55,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:56,084 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-19 07:43:56,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:56,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496275428] [2022-11-19 07:43:56,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496275428] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:43:56,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694427776] [2022-11-19 07:43:56,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:56,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:43:56,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:56,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:43:56,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:43:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:56,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:43:56,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:43:56,493 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-19 07:43:56,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:43:56,569 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-19 07:43:56,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694427776] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:43:56,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1808387895] [2022-11-19 07:43:56,574 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2022-11-19 07:43:56,574 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:43:56,574 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:43:56,575 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:43:56,575 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:44:17,345 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 07:44:17,640 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 264 for LOIs [2022-11-19 07:44:19,524 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-19 07:44:20,008 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 264 for LOIs [2022-11-19 07:44:23,048 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 274 for LOIs [2022-11-19 07:44:42,130 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 455 for LOIs [2022-11-19 07:44:42,686 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 248 for LOIs [2022-11-19 07:44:43,308 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 248 for LOIs [2022-11-19 07:44:43,351 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 246 for LOIs [2022-11-19 07:44:43,438 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 434 for LOIs [2022-11-19 07:44:44,091 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 234 for LOIs [2022-11-19 07:44:44,125 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 476 for LOIs [2022-11-19 07:44:45,990 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 251 for LOIs [2022-11-19 07:44:46,035 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:45:03,840 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:45:17,613 WARN L233 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 464 DAG size of output: 319 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:45:28,517 WARN L233 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 486 DAG size of output: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:45:48,808 WARN L233 SmtUtils]: Spent 10.39s on a formula simplification. DAG size of input: 580 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:46:03,967 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 476 DAG size of output: 276 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:46:26,910 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 455 DAG size of output: 266 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:46:32,876 WARN L233 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 481 DAG size of output: 282 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:46:57,201 WARN L233 SmtUtils]: Spent 11.48s on a formula simplification. DAG size of input: 434 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:47:09,379 WARN L233 SmtUtils]: Spent 11.56s on a formula simplification. DAG size of input: 453 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:47:28,766 WARN L233 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 478 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:47:35,594 WARN L233 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 520 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:48:26,246 WARN L233 SmtUtils]: Spent 8.58s on a formula simplification. DAG size of input: 577 DAG size of output: 447 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:48:34,036 WARN L233 SmtUtils]: Spent 6.87s on a formula simplification. DAG size of input: 577 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:48:42,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1808387895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:48:42,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:48:42,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [4, 4, 4] total 75 [2022-11-19 07:48:42,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139266439] [2022-11-19 07:48:42,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:48:42,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-11-19 07:48:42,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:48:42,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-11-19 07:48:42,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=5307, Unknown=0, NotChecked=0, Total=5550 [2022-11-19 07:48:42,081 INFO L87 Difference]: Start difference. First operand 443 states and 646 transitions. Second operand has 70 states, 46 states have (on average 1.108695652173913) internal successors, (51), 43 states have internal predecessors, (51), 21 states have call successors, (22), 13 states have call predecessors, (22), 10 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2022-11-19 07:49:47,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:49:47,186 INFO L93 Difference]: Finished difference Result 675 states and 963 transitions. [2022-11-19 07:49:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-19 07:49:47,187 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 46 states have (on average 1.108695652173913) internal successors, (51), 43 states have internal predecessors, (51), 21 states have call successors, (22), 13 states have call predecessors, (22), 10 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 106 [2022-11-19 07:49:47,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:49:47,191 INFO L225 Difference]: With dead ends: 675 [2022-11-19 07:49:47,191 INFO L226 Difference]: Without dead ends: 549 [2022-11-19 07:49:47,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 244 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1776 ImplicationChecksByTransitivity, 261.2s TimeCoverageRelationStatistics Valid=303, Invalid=6669, Unknown=0, NotChecked=0, Total=6972 [2022-11-19 07:49:47,195 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 368 mSDsluCounter, 6978 mSDsCounter, 0 mSdLazyCounter, 9988 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 7250 SdHoareTripleChecker+Invalid, 10060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 9988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:49:47,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 7250 Invalid, 10060 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [72 Valid, 9988 Invalid, 0 Unknown, 0 Unchecked, 39.2s Time] [2022-11-19 07:49:47,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-11-19 07:49:47,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 502. [2022-11-19 07:49:47,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 325 states have (on average 1.3846153846153846) internal successors, (450), 330 states have internal predecessors, (450), 136 states have call successors, (136), 42 states have call predecessors, (136), 40 states have return successors, (136), 131 states have call predecessors, (136), 135 states have call successors, (136) [2022-11-19 07:49:47,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 722 transitions. [2022-11-19 07:49:47,429 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 722 transitions. Word has length 106 [2022-11-19 07:49:47,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:49:47,430 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 722 transitions. [2022-11-19 07:49:47,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 46 states have (on average 1.108695652173913) internal successors, (51), 43 states have internal predecessors, (51), 21 states have call successors, (22), 13 states have call predecessors, (22), 10 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2022-11-19 07:49:47,430 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 722 transitions. [2022-11-19 07:49:47,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-19 07:49:47,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:49:47,434 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:49:47,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:49:47,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 07:49:47,642 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:49:47,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:49:47,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1194377858, now seen corresponding path program 1 times [2022-11-19 07:49:47,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:49:47,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055619791] [2022-11-19 07:49:47,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:47,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:49:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:47,846 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-19 07:49:47,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:49:47,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055619791] [2022-11-19 07:49:47,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055619791] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:49:47,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026302040] [2022-11-19 07:49:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:49:47,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:49:47,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:49:47,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:49:47,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:49:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:49:48,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:49:48,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:49:48,257 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-19 07:49:48,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:49:48,367 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-19 07:49:48,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026302040] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:49:48,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [578520391] [2022-11-19 07:49:48,376 INFO L159 IcfgInterpreter]: Started Sifa with 94 locations of interest [2022-11-19 07:49:48,377 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:49:48,378 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:49:48,378 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:49:48,378 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:50:17,944 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-19 07:50:18,225 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 260 for LOIs [2022-11-19 07:50:19,849 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-19 07:50:20,137 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 260 for LOIs [2022-11-19 07:50:22,791 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 220 for LOIs [2022-11-19 07:50:22,822 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 230 for LOIs [2022-11-19 07:50:22,855 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 230 for LOIs [2022-11-19 07:50:22,890 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 247 for LOIs [2022-11-19 07:50:22,937 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:50:40,817 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:50:56,515 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 464 DAG size of output: 319 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:51:07,507 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 486 DAG size of output: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:51:29,964 WARN L233 SmtUtils]: Spent 12.46s on a formula simplification. DAG size of input: 589 DAG size of output: 332 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:52:11,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [578520391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:11,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:52:11,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [4, 4, 4] total 51 [2022-11-19 07:52:11,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417030311] [2022-11-19 07:52:11,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:11,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-19 07:52:11,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:11,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-19 07:52:11,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=2393, Unknown=0, NotChecked=0, Total=2550 [2022-11-19 07:52:11,391 INFO L87 Difference]: Start difference. First operand 502 states and 722 transitions. Second operand has 46 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 29 states have internal predecessors, (57), 14 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2022-11-19 07:52:18,910 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 343 DAG size of output: 336 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:53:12,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:12,600 INFO L93 Difference]: Finished difference Result 995 states and 1488 transitions. [2022-11-19 07:53:12,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-19 07:53:12,601 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 29 states have internal predecessors, (57), 14 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) Word has length 123 [2022-11-19 07:53:12,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:12,605 INFO L225 Difference]: With dead ends: 995 [2022-11-19 07:53:12,605 INFO L226 Difference]: Without dead ends: 638 [2022-11-19 07:53:12,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 144.2s TimeCoverageRelationStatistics Valid=267, Invalid=3639, Unknown=0, NotChecked=0, Total=3906 [2022-11-19 07:53:12,607 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 307 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 5925 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 5185 SdHoareTripleChecker+Invalid, 5971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 5925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:12,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 5185 Invalid, 5971 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [46 Valid, 5925 Invalid, 0 Unknown, 0 Unchecked, 24.7s Time] [2022-11-19 07:53:12,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-11-19 07:53:12,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 556. [2022-11-19 07:53:12,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 365 states have (on average 1.3835616438356164) internal successors, (505), 372 states have internal predecessors, (505), 145 states have call successors, (145), 49 states have call predecessors, (145), 45 states have return successors, (145), 136 states have call predecessors, (145), 144 states have call successors, (145) [2022-11-19 07:53:12,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 795 transitions. [2022-11-19 07:53:12,859 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 795 transitions. Word has length 123 [2022-11-19 07:53:12,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:12,859 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 795 transitions. [2022-11-19 07:53:12,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 29 states have internal predecessors, (57), 14 states have call successors, (26), 9 states have call predecessors, (26), 7 states have return successors, (23), 12 states have call predecessors, (23), 12 states have call successors, (23) [2022-11-19 07:53:12,860 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 795 transitions. [2022-11-19 07:53:12,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-19 07:53:12,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:12,863 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:12,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:53:13,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:13,071 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:13,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:13,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1139348585, now seen corresponding path program 1 times [2022-11-19 07:53:13,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:13,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170079920] [2022-11-19 07:53:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:13,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:13,216 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-19 07:53:13,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:13,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170079920] [2022-11-19 07:53:13,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170079920] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:53:13,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100734960] [2022-11-19 07:53:13,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:13,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:13,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:13,218 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:13,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_730be603-4c1b-45b1-8d2d-340b697ac39f/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:53:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:13,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:53:13,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:13,609 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-19 07:53:13,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:53:13,693 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-19 07:53:13,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100734960] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:53:13,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [34865191] [2022-11-19 07:53:13,700 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2022-11-19 07:53:13,700 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:53:13,701 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:53:13,701 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:53:13,701 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:53:43,411 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-19 07:53:43,699 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 260 for LOIs [2022-11-19 07:53:45,410 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-19 07:53:45,713 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 262 for LOIs [2022-11-19 07:53:48,613 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 270 for LOIs [2022-11-19 07:54:04,020 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 451 for LOIs [2022-11-19 07:54:04,783 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 244 for LOIs [2022-11-19 07:54:05,498 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 244 for LOIs [2022-11-19 07:54:05,535 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 242 for LOIs [2022-11-19 07:54:05,600 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 430 for LOIs [2022-11-19 07:54:06,436 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 230 for LOIs [2022-11-19 07:54:06,471 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 472 for LOIs [2022-11-19 07:54:08,202 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 247 for LOIs [2022-11-19 07:54:08,274 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:54:39,030 WARN L233 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 464 DAG size of output: 319 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)