./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI --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 dc94b11b9bf104a1982bd595975574e7febd0128133afbc196759ccbde82033d --- 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-5e519f3 [2022-11-03 03:35:50,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:35:50,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:35:50,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:35:50,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:35:50,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:35:50,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:35:50,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:35:50,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:35:50,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:35:50,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:35:50,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:35:50,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:35:50,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:35:50,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:35:50,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:35:50,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:35:50,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:35:50,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:35:50,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:35:50,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:35:50,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:35:50,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:35:50,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:35:50,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:35:50,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:35:50,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:35:50,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:35:50,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:35:50,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:35:50,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:35:50,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:35:50,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:35:50,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:35:50,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:35:50,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:35:50,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:35:50,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:35:50,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:35:50,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:35:50,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:35:50,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:35:51,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:35:51,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:35:51,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:35:51,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:35:51,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:35:51,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:35:51,012 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:35:51,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:35:51,012 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:35:51,012 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:35:51,014 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:35:51,014 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:35:51,014 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:35:51,014 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:35:51,014 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:35:51,015 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:35:51,015 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:35:51,015 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:35:51,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:35:51,016 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:35:51,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:35:51,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:35:51,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:35:51,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:35:51,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:35:51,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:35:51,017 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:35:51,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:35:51,018 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:35:51,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:35:51,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:35:51,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:35:51,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:35:51,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:35:51,019 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:35:51,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:35:51,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:35:51,020 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:35:51,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:35:51,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:35:51,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:35:51,022 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_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc94b11b9bf104a1982bd595975574e7febd0128133afbc196759ccbde82033d [2022-11-03 03:35:51,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:35:51,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:35:51,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:35:51,371 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:35:51,372 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:35:51,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/email_spec11_product23.cil.c [2022-11-03 03:35:51,458 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/data/bcb400c15/c3727669abdb451c90beefca050f0818/FLAGa551f7337 [2022-11-03 03:35:52,061 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:35:52,062 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/sv-benchmarks/c/product-lines/email_spec11_product23.cil.c [2022-11-03 03:35:52,083 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/data/bcb400c15/c3727669abdb451c90beefca050f0818/FLAGa551f7337 [2022-11-03 03:35:52,312 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/data/bcb400c15/c3727669abdb451c90beefca050f0818 [2022-11-03 03:35:52,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:35:52,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:35:52,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:35:52,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:35:52,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:35:52,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:35:52" (1/1) ... [2022-11-03 03:35:52,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34cdf0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:52, skipping insertion in model container [2022-11-03 03:35:52,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:35:52" (1/1) ... [2022-11-03 03:35:52,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:35:52,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:35:52,904 WARN L230 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_fc5bc58b-79a6-4627-b595-b38d011f5d6b/sv-benchmarks/c/product-lines/email_spec11_product23.cil.c[40745,40758] [2022-11-03 03:35:53,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:35:53,071 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:35:53,135 WARN L230 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_fc5bc58b-79a6-4627-b595-b38d011f5d6b/sv-benchmarks/c/product-lines/email_spec11_product23.cil.c[40745,40758] [2022-11-03 03:35:53,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:35:53,207 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:35:53,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53 WrapperNode [2022-11-03 03:35:53,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:35:53,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:35:53,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:35:53,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:35:53,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (1/1) ... [2022-11-03 03:35:53,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (1/1) ... [2022-11-03 03:35:53,297 INFO L138 Inliner]: procedures = 130, calls = 217, calls flagged for inlining = 60, calls inlined = 53, statements flattened = 985 [2022-11-03 03:35:53,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:35:53,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:35:53,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:35:53,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:35:53,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (1/1) ... [2022-11-03 03:35:53,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (1/1) ... [2022-11-03 03:35:53,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (1/1) ... [2022-11-03 03:35:53,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (1/1) ... [2022-11-03 03:35:53,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (1/1) ... [2022-11-03 03:35:53,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (1/1) ... [2022-11-03 03:35:53,386 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (1/1) ... [2022-11-03 03:35:53,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (1/1) ... [2022-11-03 03:35:53,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:35:53,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:35:53,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:35:53,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:35:53,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (1/1) ... [2022-11-03 03:35:53,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:35:53,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:35:53,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:35:53,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:35:53,510 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-03 03:35:53,511 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-03 03:35:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-03 03:35:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-03 03:35:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-03 03:35:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-03 03:35:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-11-03 03:35:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-11-03 03:35:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-03 03:35:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-03 03:35:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-03 03:35:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-03 03:35:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-03 03:35:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-03 03:35:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-03 03:35:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-03 03:35:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-03 03:35:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-03 03:35:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-03 03:35:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-03 03:35:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-03 03:35:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-03 03:35:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-03 03:35:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:35:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-03 03:35:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-03 03:35:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-03 03:35:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-03 03:35:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-03 03:35:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-03 03:35:53,516 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-03 03:35:53,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-03 03:35:53,517 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-03 03:35:53,517 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-03 03:35:53,517 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-03 03:35:53,517 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-03 03:35:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-03 03:35:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-03 03:35:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-03 03:35:53,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-03 03:35:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:35:53,518 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-03 03:35:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-03 03:35:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-03 03:35:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-03 03:35:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:35:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:35:53,845 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:35:53,847 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:35:54,802 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:35:55,479 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:35:55,480 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:35:55,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:35:55 BoogieIcfgContainer [2022-11-03 03:35:55,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:35:55,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:35:55,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:35:55,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:35:55,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:35:52" (1/3) ... [2022-11-03 03:35:55,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb486c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:35:55, skipping insertion in model container [2022-11-03 03:35:55,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:53" (2/3) ... [2022-11-03 03:35:55,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb486c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:35:55, skipping insertion in model container [2022-11-03 03:35:55,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:35:55" (3/3) ... [2022-11-03 03:35:55,497 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product23.cil.c [2022-11-03 03:35:55,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:35:55,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:35:55,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:35:55,616 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;@2466454c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:35:55,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:35:55,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 99 states have (on average 1.3333333333333333) internal successors, (132), 102 states have internal predecessors, (132), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-03 03:35:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 03:35:55,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:55,645 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:35:55,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:35:55,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:55,653 INFO L85 PathProgramCache]: Analyzing trace with hash 822311867, now seen corresponding path program 1 times [2022-11-03 03:35:55,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:55,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878581940] [2022-11-03 03:35:55,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:55,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:56,073 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:35:56,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:56,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878581940] [2022-11-03 03:35:56,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878581940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:56,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:56,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:35:56,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41661624] [2022-11-03 03:35:56,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:56,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:35:56,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:56,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:35:56,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:35:56,129 INFO L87 Difference]: Start difference. First operand has 172 states, 99 states have (on average 1.3333333333333333) internal successors, (132), 102 states have internal predecessors, (132), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:35:56,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:56,313 INFO L93 Difference]: Finished difference Result 252 states and 335 transitions. [2022-11-03 03:35:56,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:35:56,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2022-11-03 03:35:56,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:56,332 INFO L225 Difference]: With dead ends: 252 [2022-11-03 03:35:56,332 INFO L226 Difference]: Without dead ends: 169 [2022-11-03 03:35:56,337 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 [2022-11-03 03:35:56,346 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:56,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:35:56,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-03 03:35:56,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-11-03 03:35:56,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 99 states have internal predecessors, (126), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-03 03:35:56,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 225 transitions. [2022-11-03 03:35:56,433 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 225 transitions. Word has length 67 [2022-11-03 03:35:56,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:56,439 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 225 transitions. [2022-11-03 03:35:56,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:35:56,440 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 225 transitions. [2022-11-03 03:35:56,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-03 03:35:56,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:56,447 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:35:56,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:35:56,449 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:35:56,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:56,453 INFO L85 PathProgramCache]: Analyzing trace with hash -254625377, now seen corresponding path program 1 times [2022-11-03 03:35:56,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:56,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356405496] [2022-11-03 03:35:56,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:56,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:56,749 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:35:56,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:56,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356405496] [2022-11-03 03:35:56,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356405496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:56,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:56,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:35:56,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760632605] [2022-11-03 03:35:56,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:56,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:35:56,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:56,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:35:56,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:35:56,753 INFO L87 Difference]: Start difference. First operand 169 states and 225 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:35:56,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:56,865 INFO L93 Difference]: Finished difference Result 248 states and 320 transitions. [2022-11-03 03:35:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:35:56,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 68 [2022-11-03 03:35:56,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:56,868 INFO L225 Difference]: With dead ends: 248 [2022-11-03 03:35:56,868 INFO L226 Difference]: Without dead ends: 171 [2022-11-03 03:35:56,870 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 [2022-11-03 03:35:56,871 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:56,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:35:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-03 03:35:56,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2022-11-03 03:35:56,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 99 states have (on average 1.292929292929293) internal successors, (128), 101 states have internal predecessors, (128), 50 states have call successors, (50), 21 states have call predecessors, (50), 21 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-03 03:35:56,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 227 transitions. [2022-11-03 03:35:56,887 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 227 transitions. Word has length 68 [2022-11-03 03:35:56,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:56,888 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 227 transitions. [2022-11-03 03:35:56,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:35:56,888 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 227 transitions. [2022-11-03 03:35:56,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-03 03:35:56,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:56,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 03:35:56,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:35:56,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:35:56,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:56,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1706114856, now seen corresponding path program 1 times [2022-11-03 03:35:56,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:56,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097796488] [2022-11-03 03:35:56,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:56,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:57,113 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:35:57,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:57,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097796488] [2022-11-03 03:35:57,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097796488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:35:57,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:35:57,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:35:57,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929363769] [2022-11-03 03:35:57,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:35:57,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:35:57,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:35:57,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:35:57,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:35:57,117 INFO L87 Difference]: Start difference. First operand 171 states and 227 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:35:57,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:35:57,249 INFO L93 Difference]: Finished difference Result 377 states and 521 transitions. [2022-11-03 03:35:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:35:57,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2022-11-03 03:35:57,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:35:57,252 INFO L225 Difference]: With dead ends: 377 [2022-11-03 03:35:57,252 INFO L226 Difference]: Without dead ends: 224 [2022-11-03 03:35:57,253 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 [2022-11-03 03:35:57,254 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 59 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:35:57,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 394 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:35:57,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-11-03 03:35:57,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 219. [2022-11-03 03:35:57,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 133 states have (on average 1.3759398496240602) internal successors, (183), 135 states have internal predecessors, (183), 64 states have call successors, (64), 21 states have call predecessors, (64), 21 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-03 03:35:57,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 310 transitions. [2022-11-03 03:35:57,275 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 310 transitions. Word has length 73 [2022-11-03 03:35:57,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:35:57,276 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 310 transitions. [2022-11-03 03:35:57,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-03 03:35:57,276 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 310 transitions. [2022-11-03 03:35:57,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-03 03:35:57,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:35:57,279 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 03:35:57,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:35:57,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:35:57,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:35:57,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1090441316, now seen corresponding path program 1 times [2022-11-03 03:35:57,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:35:57,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064288888] [2022-11-03 03:35:57,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:57,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:35:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:57,541 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:35:57,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:35:57,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064288888] [2022-11-03 03:35:57,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064288888] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:35:57,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217680327] [2022-11-03 03:35:57,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:35:57,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:35:57,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:35:57,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:35:57,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:35:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:35:57,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:35:57,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:35:58,039 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:35:58,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:35:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:35:58,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217680327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:35:58,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2070699635] [2022-11-03 03:35:58,168 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-03 03:35:58,168 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:35:58,173 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:35:58,179 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:35:58,180 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:36:48,745 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 439 for LOIs [2022-11-03 03:36:49,098 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:36:49,422 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-11-03 03:36:51,640 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-03 03:36:51,682 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 261 for LOIs [2022-11-03 03:36:55,628 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 269 for LOIs [2022-11-03 03:37:01,582 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 435 for LOIs [2022-11-03 03:37:01,825 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 251 for LOIs [2022-11-03 03:37:01,879 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-11-03 03:37:03,979 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 242 for LOIs [2022-11-03 03:37:04,032 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:37:32,560 WARN L234 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 470 DAG size of output: 309 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:37:49,003 WARN L234 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 504 DAG size of output: 343 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:38:03,879 WARN L234 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 571 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:38:12,014 WARN L234 SmtUtils]: Spent 7.65s on a formula simplification. DAG size of input: 566 DAG size of output: 393 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:38:20,211 WARN L234 SmtUtils]: Spent 7.69s on a formula simplification. DAG size of input: 570 DAG size of output: 397 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:38:32,218 WARN L234 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 477 DAG size of output: 275 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:39:12,916 WARN L234 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 498 DAG size of output: 392 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:39:20,851 WARN L234 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 514 DAG size of output: 408 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:39:36,681 WARN L234 SmtUtils]: Spent 7.63s on a formula simplification. DAG size of input: 534 DAG size of output: 367 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:39:41,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2070699635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:41,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:39:41,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [4, 4, 4] total 54 [2022-11-03 03:39:41,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226229506] [2022-11-03 03:39:41,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:41,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-03 03:39:41,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:39:41,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-03 03:39:41,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=2721, Unknown=0, NotChecked=0, Total=2862 [2022-11-03 03:39:41,524 INFO L87 Difference]: Start difference. First operand 219 states and 310 transitions. Second operand has 49 states, 32 states have (on average 1.1875) internal successors, (38), 29 states have internal predecessors, (38), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 03:40:46,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:46,986 INFO L93 Difference]: Finished difference Result 632 states and 980 transitions. [2022-11-03 03:40:46,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-03 03:40:46,987 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 32 states have (on average 1.1875) internal successors, (38), 29 states have internal predecessors, (38), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 74 [2022-11-03 03:40:46,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:46,991 INFO L225 Difference]: With dead ends: 632 [2022-11-03 03:40:46,991 INFO L226 Difference]: Without dead ends: 431 [2022-11-03 03:40:46,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 195.6s TimeCoverageRelationStatistics Valid=214, Invalid=3818, Unknown=0, NotChecked=0, Total=4032 [2022-11-03 03:40:46,995 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 463 mSDsluCounter, 5045 mSDsCounter, 0 mSdLazyCounter, 6948 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 7003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 6948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:40:46,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 5181 Invalid, 7003 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [55 Valid, 6948 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time] [2022-11-03 03:40:46,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-11-03 03:40:47,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 320. [2022-11-03 03:40:47,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 216 states have (on average 1.4351851851851851) internal successors, (310), 219 states have internal predecessors, (310), 75 states have call successors, (75), 30 states have call predecessors, (75), 28 states have return successors, (75), 70 states have call predecessors, (75), 74 states have call successors, (75) [2022-11-03 03:40:47,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 460 transitions. [2022-11-03 03:40:47,182 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 460 transitions. Word has length 74 [2022-11-03 03:40:47,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:47,185 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 460 transitions. [2022-11-03 03:40:47,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 32 states have (on average 1.1875) internal successors, (38), 29 states have internal predecessors, (38), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 03:40:47,189 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 460 transitions. [2022-11-03 03:40:47,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-03 03:40:47,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:47,192 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-03 03:40:47,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:47,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:40:47,415 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:47,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:47,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1041051483, now seen corresponding path program 1 times [2022-11-03 03:40:47,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:40:47,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703615901] [2022-11-03 03:40:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:47,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:40:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:47,560 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:40:47,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:40:47,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703615901] [2022-11-03 03:40:47,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703615901] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:40:47,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298271317] [2022-11-03 03:40:47,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:47,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:40:47,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:40:47,562 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:40:47,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:40:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:47,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:40:47,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:47,925 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:40:47,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:40:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:40:48,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298271317] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:40:48,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1706822195] [2022-11-03 03:40:48,007 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2022-11-03 03:40:48,008 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:40:48,009 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:40:48,009 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:40:48,010 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:41:25,873 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-03 03:41:26,193 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-03 03:41:26,489 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2022-11-03 03:41:28,243 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 237 for LOIs [2022-11-03 03:41:28,284 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 259 for LOIs [2022-11-03 03:41:32,199 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 269 for LOIs [2022-11-03 03:41:49,605 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2022-11-03 03:41:49,640 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 251 for LOIs [2022-11-03 03:41:49,684 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-11-03 03:41:51,704 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 435 for LOIs [2022-11-03 03:41:51,958 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 262 for LOIs [2022-11-03 03:41:52,011 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:42:05,068 WARN L234 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:11,043 WARN L234 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:24,504 WARN L234 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 470 DAG size of output: 309 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:40,718 WARN L234 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 504 DAG size of output: 343 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:42:55,422 WARN L234 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 571 DAG size of output: 348 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:43:01,144 WARN L234 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 565 DAG size of output: 339 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:43:06,949 WARN L234 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 569 DAG size of output: 343 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:43:19,465 WARN L234 SmtUtils]: Spent 7.95s on a formula simplification. DAG size of input: 477 DAG size of output: 275 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:44:00,589 WARN L234 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 498 DAG size of output: 392 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:44:08,546 WARN L234 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 514 DAG size of output: 408 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:44:19,238 WARN L234 SmtUtils]: Spent 7.67s on a formula simplification. DAG size of input: 534 DAG size of output: 367 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:44:35,313 WARN L234 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 453 DAG size of output: 324 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:44:55,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1706822195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:55,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:44:55,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [4, 4, 4] total 63 [2022-11-03 03:44:55,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770063230] [2022-11-03 03:44:55,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:55,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-11-03 03:44:55,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:55,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-11-03 03:44:55,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=3708, Unknown=0, NotChecked=0, Total=3906 [2022-11-03 03:44:55,644 INFO L87 Difference]: Start difference. First operand 320 states and 460 transitions. Second operand has 58 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 35 states have internal predecessors, (41), 17 states have call successors, (17), 11 states have call predecessors, (17), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 03:46:05,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:05,078 INFO L93 Difference]: Finished difference Result 448 states and 666 transitions. [2022-11-03 03:46:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-03 03:46:05,078 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 35 states have internal predecessors, (41), 17 states have call successors, (17), 11 states have call predecessors, (17), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 79 [2022-11-03 03:46:05,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:05,082 INFO L225 Difference]: With dead ends: 448 [2022-11-03 03:46:05,082 INFO L226 Difference]: Without dead ends: 446 [2022-11-03 03:46:05,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1139 ImplicationChecksByTransitivity, 222.8s TimeCoverageRelationStatistics Valid=293, Invalid=5257, Unknown=0, NotChecked=0, Total=5550 [2022-11-03 03:46:05,085 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 353 mSDsluCounter, 5368 mSDsCounter, 0 mSdLazyCounter, 7995 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 5483 SdHoareTripleChecker+Invalid, 8041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 7995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:05,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 5483 Invalid, 8041 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [46 Valid, 7995 Invalid, 0 Unknown, 0 Unchecked, 29.3s Time] [2022-11-03 03:46:05,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-11-03 03:46:05,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 329. [2022-11-03 03:46:05,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 222 states have (on average 1.427927927927928) internal successors, (317), 225 states have internal predecessors, (317), 76 states have call successors, (76), 32 states have call predecessors, (76), 30 states have return successors, (76), 71 states have call predecessors, (76), 75 states have call successors, (76) [2022-11-03 03:46:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 469 transitions. [2022-11-03 03:46:05,306 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 469 transitions. Word has length 79 [2022-11-03 03:46:05,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:05,307 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 469 transitions. [2022-11-03 03:46:05,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 35 states have internal predecessors, (41), 17 states have call successors, (17), 11 states have call predecessors, (17), 8 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 03:46:05,308 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 469 transitions. [2022-11-03 03:46:05,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-03 03:46:05,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:05,312 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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] [2022-11-03 03:46:05,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:46:05,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:05,513 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:05,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:05,513 INFO L85 PathProgramCache]: Analyzing trace with hash -331832219, now seen corresponding path program 1 times [2022-11-03 03:46:05,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:05,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999391183] [2022-11-03 03:46:05,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:05,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:05,600 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:46:05,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:05,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999391183] [2022-11-03 03:46:05,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999391183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:05,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:05,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:46:05,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599224546] [2022-11-03 03:46:05,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:05,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:46:05,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:05,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:46:05,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:05,603 INFO L87 Difference]: Start difference. First operand 329 states and 469 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:46:06,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:06,045 INFO L93 Difference]: Finished difference Result 745 states and 1094 transitions. [2022-11-03 03:46:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:06,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 79 [2022-11-03 03:46:06,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:06,049 INFO L225 Difference]: With dead ends: 745 [2022-11-03 03:46:06,050 INFO L226 Difference]: Without dead ends: 454 [2022-11-03 03:46:06,051 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 [2022-11-03 03:46:06,052 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 57 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:06,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 406 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:46:06,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-11-03 03:46:06,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 447. [2022-11-03 03:46:06,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 309 states have (on average 1.4595469255663431) internal successors, (451), 312 states have internal predecessors, (451), 107 states have call successors, (107), 32 states have call predecessors, (107), 30 states have return successors, (107), 102 states have call predecessors, (107), 106 states have call successors, (107) [2022-11-03 03:46:06,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 665 transitions. [2022-11-03 03:46:06,377 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 665 transitions. Word has length 79 [2022-11-03 03:46:06,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:06,377 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 665 transitions. [2022-11-03 03:46:06,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 03:46:06,378 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 665 transitions. [2022-11-03 03:46:06,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-03 03:46:06,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:06,381 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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] [2022-11-03 03:46:06,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:46:06,382 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:06,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:06,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1718861068, now seen corresponding path program 1 times [2022-11-03 03:46:06,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:06,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809521366] [2022-11-03 03:46:06,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:06,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:06,566 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:46:06,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:06,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809521366] [2022-11-03 03:46:06,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809521366] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:46:06,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398226762] [2022-11-03 03:46:06,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:06,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:06,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:46:06,569 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:46:06,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5bc58b-79a6-4627-b595-b38d011f5d6b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:46:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:06,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:46:06,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:46:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:46:06,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:46:06,989 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:46:06,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398226762] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:46:06,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1130769651] [2022-11-03 03:46:06,996 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2022-11-03 03:46:06,996 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:46:06,997 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:46:06,997 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:46:06,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:46:48,844 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-03 03:46:49,160 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 442 for LOIs [2022-11-03 03:46:49,517 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:47:02,319 WARN L234 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:08,029 WARN L234 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:23,222 WARN L234 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 470 DAG size of output: 309 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:47:39,570 WARN L234 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 504 DAG size of output: 343 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:48:10,114 WARN L234 SmtUtils]: Spent 23.00s on a formula simplification. DAG size of input: 588 DAG size of output: 459 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:48:23,727 WARN L234 SmtUtils]: Spent 12.11s on a formula simplification. DAG size of input: 588 DAG size of output: 338 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)