./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW --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 4d912bb29f92146b3af89aaec6570a3971933bc9b9284807c8f8b532bfb963bf --- 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-4e7fbc6 [2022-11-23 14:50:00,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:50:00,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:50:00,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:50:00,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:50:00,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:50:00,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:50:00,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:50:00,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:50:00,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:50:00,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:50:00,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:50:00,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:50:00,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:50:00,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:50:00,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:50:00,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:50:00,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:50:00,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:50:00,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:50:00,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:50:00,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:50:00,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:50:00,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:50:00,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:50:00,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:50:00,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:50:01,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:50:01,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:50:01,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:50:01,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:50:01,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:50:01,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:50:01,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:50:01,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:50:01,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:50:01,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:50:01,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:50:01,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:50:01,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:50:01,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:50:01,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:50:01,060 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:50:01,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:50:01,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:50:01,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:50:01,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:50:01,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:50:01,064 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:50:01,064 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:50:01,064 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:50:01,065 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:50:01,066 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:50:01,066 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:50:01,066 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:50:01,067 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:50:01,067 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:50:01,067 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:50:01,068 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:50:01,068 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:50:01,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:50:01,069 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:50:01,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:50:01,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:50:01,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:50:01,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:50:01,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:50:01,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:50:01,071 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:50:01,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:50:01,072 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:50:01,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:50:01,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:50:01,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:50:01,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:50:01,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:50:01,074 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:50:01,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:50:01,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:50:01,075 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:50:01,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:50:01,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:50:01,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:50:01,076 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_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d912bb29f92146b3af89aaec6570a3971933bc9b9284807c8f8b532bfb963bf [2022-11-23 14:50:01,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:50:01,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:50:01,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:50:01,389 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:50:01,390 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:50:01,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/email_spec27_product17.cil.c [2022-11-23 14:50:04,700 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:50:05,054 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:50:05,055 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/sv-benchmarks/c/product-lines/email_spec27_product17.cil.c [2022-11-23 14:50:05,097 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/data/ca1621950/819bc593235049f4aa1f79b9cd4a164d/FLAG68a7d0641 [2022-11-23 14:50:05,114 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/data/ca1621950/819bc593235049f4aa1f79b9cd4a164d [2022-11-23 14:50:05,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:50:05,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:50:05,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:50:05,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:50:05,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:50:05,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:05" (1/1) ... [2022-11-23 14:50:05,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b101bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:05, skipping insertion in model container [2022-11-23 14:50:05,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:50:05" (1/1) ... [2022-11-23 14:50:05,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:50:05,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:50:05,661 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/sv-benchmarks/c/product-lines/email_spec27_product17.cil.c[18815,18828] [2022-11-23 14:50:05,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:50:05,927 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:50:06,011 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/sv-benchmarks/c/product-lines/email_spec27_product17.cil.c[18815,18828] [2022-11-23 14:50:06,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:50:06,134 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:50:06,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06 WrapperNode [2022-11-23 14:50:06,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:50:06,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:50:06,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:50:06,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:50:06,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:06,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:06,266 INFO L138 Inliner]: procedures = 127, calls = 209, calls flagged for inlining = 52, calls inlined = 46, statements flattened = 888 [2022-11-23 14:50:06,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:50:06,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:50:06,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:50:06,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:50:06,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:06,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:06,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:06,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:06,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:06,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:06,329 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:06,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:06,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:50:06,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:50:06,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:50:06,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:50:06,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (1/1) ... [2022-11-23 14:50:06,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:50:06,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:50:06,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:50:06,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:50:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-23 14:50:06,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-23 14:50:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-23 14:50:06,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-23 14:50:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-11-23 14:50:06,431 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-11-23 14:50:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-23 14:50:06,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-23 14:50:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-23 14:50:06,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-23 14:50:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-23 14:50:06,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-23 14:50:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-23 14:50:06,433 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-23 14:50:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-23 14:50:06,434 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-23 14:50:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-23 14:50:06,434 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-23 14:50:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-23 14:50:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-23 14:50:06,435 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-23 14:50:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-23 14:50:06,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-23 14:50:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:50:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-23 14:50:06,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-23 14:50:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-23 14:50:06,437 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-23 14:50:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-23 14:50:06,437 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-23 14:50:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-23 14:50:06,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-23 14:50:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-23 14:50:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-23 14:50:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-11-23 14:50:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-11-23 14:50:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-23 14:50:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-23 14:50:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-23 14:50:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-23 14:50:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-23 14:50:06,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-23 14:50:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-23 14:50:06,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-23 14:50:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:50:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-23 14:50:06,469 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-23 14:50:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-23 14:50:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-23 14:50:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:50:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:50:06,753 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:50:06,756 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:50:07,832 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:50:08,473 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:50:08,473 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:50:08,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:08 BoogieIcfgContainer [2022-11-23 14:50:08,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:50:08,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:50:08,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:50:08,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:50:08,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:50:05" (1/3) ... [2022-11-23 14:50:08,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@750840b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:08, skipping insertion in model container [2022-11-23 14:50:08,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:50:06" (2/3) ... [2022-11-23 14:50:08,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@750840b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:50:08, skipping insertion in model container [2022-11-23 14:50:08,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:50:08" (3/3) ... [2022-11-23 14:50:08,493 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product17.cil.c [2022-11-23 14:50:08,514 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:50:08,514 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:50:08,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:50:08,597 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;@47388c46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:50:08,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:50:08,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 101 states have (on average 1.3267326732673268) internal successors, (134), 104 states have internal predecessors, (134), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-11-23 14:50:08,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 14:50:08,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:08,627 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:08,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:08,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:08,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1447729556, now seen corresponding path program 1 times [2022-11-23 14:50:08,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:08,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340100591] [2022-11-23 14:50:08,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:08,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:09,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:09,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340100591] [2022-11-23 14:50:09,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340100591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:09,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:09,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:50:09,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11257214] [2022-11-23 14:50:09,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:09,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:50:09,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:50:09,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:50:09,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:50:09,174 INFO L87 Difference]: Start difference. First operand has 177 states, 101 states have (on average 1.3267326732673268) internal successors, (134), 104 states have internal predecessors, (134), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:50:09,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:09,348 INFO L93 Difference]: Finished difference Result 262 states and 343 transitions. [2022-11-23 14:50:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:50:09,352 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 75 [2022-11-23 14:50:09,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:09,370 INFO L225 Difference]: With dead ends: 262 [2022-11-23 14:50:09,370 INFO L226 Difference]: Without dead ends: 174 [2022-11-23 14:50:09,376 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 [2022-11-23 14:50:09,380 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:09,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 200 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:50:09,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-23 14:50:09,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-11-23 14:50:09,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 99 states have (on average 1.292929292929293) internal successors, (128), 101 states have internal predecessors, (128), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-23 14:50:09,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 229 transitions. [2022-11-23 14:50:09,444 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 229 transitions. Word has length 75 [2022-11-23 14:50:09,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:09,448 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 229 transitions. [2022-11-23 14:50:09,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:50:09,449 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 229 transitions. [2022-11-23 14:50:09,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-23 14:50:09,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:09,453 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:09,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:50:09,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:09,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:09,456 INFO L85 PathProgramCache]: Analyzing trace with hash 800855232, now seen corresponding path program 1 times [2022-11-23 14:50:09,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:09,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913472273] [2022-11-23 14:50:09,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:09,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:09,748 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:09,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:09,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913472273] [2022-11-23 14:50:09,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913472273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:09,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:09,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:50:09,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055036115] [2022-11-23 14:50:09,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:09,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:50:09,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:50:09,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:50:09,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:50:09,753 INFO L87 Difference]: Start difference. First operand 174 states and 229 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:50:09,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:09,873 INFO L93 Difference]: Finished difference Result 258 states and 328 transitions. [2022-11-23 14:50:09,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:50:09,874 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2022-11-23 14:50:09,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:09,877 INFO L225 Difference]: With dead ends: 258 [2022-11-23 14:50:09,877 INFO L226 Difference]: Without dead ends: 176 [2022-11-23 14:50:09,878 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 [2022-11-23 14:50:09,879 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:09,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 393 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:50:09,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-23 14:50:09,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-11-23 14:50:09,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 103 states have internal predecessors, (130), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-23 14:50:09,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 231 transitions. [2022-11-23 14:50:09,897 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 231 transitions. Word has length 76 [2022-11-23 14:50:09,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:09,898 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 231 transitions. [2022-11-23 14:50:09,898 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:50:09,898 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 231 transitions. [2022-11-23 14:50:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-23 14:50:09,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:09,902 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:09,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:50:09,902 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:09,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:09,903 INFO L85 PathProgramCache]: Analyzing trace with hash 877486011, now seen corresponding path program 1 times [2022-11-23 14:50:09,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:09,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395311357] [2022-11-23 14:50:09,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:09,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:10,115 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:10,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:10,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395311357] [2022-11-23 14:50:10,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395311357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:50:10,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:50:10,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:50:10,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515440518] [2022-11-23 14:50:10,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:50:10,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:50:10,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:50:10,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:50:10,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:50:10,119 INFO L87 Difference]: Start difference. First operand 176 states and 231 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:50:10,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:50:10,246 INFO L93 Difference]: Finished difference Result 387 states and 529 transitions. [2022-11-23 14:50:10,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:50:10,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 81 [2022-11-23 14:50:10,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:50:10,250 INFO L225 Difference]: With dead ends: 387 [2022-11-23 14:50:10,250 INFO L226 Difference]: Without dead ends: 229 [2022-11-23 14:50:10,252 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 [2022-11-23 14:50:10,253 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 59 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:50:10,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 408 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:50:10,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-11-23 14:50:10,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 224. [2022-11-23 14:50:10,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 135 states have (on average 1.3703703703703705) internal successors, (185), 137 states have internal predecessors, (185), 65 states have call successors, (65), 23 states have call predecessors, (65), 23 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-23 14:50:10,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 314 transitions. [2022-11-23 14:50:10,278 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 314 transitions. Word has length 81 [2022-11-23 14:50:10,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:50:10,278 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 314 transitions. [2022-11-23 14:50:10,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:50:10,279 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 314 transitions. [2022-11-23 14:50:10,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-23 14:50:10,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:50:10,281 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:50:10,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:50:10,282 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:50:10,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:50:10,283 INFO L85 PathProgramCache]: Analyzing trace with hash 533954627, now seen corresponding path program 1 times [2022-11-23 14:50:10,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:50:10,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489305225] [2022-11-23 14:50:10,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:10,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:50:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:10,545 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:10,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:50:10,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489305225] [2022-11-23 14:50:10,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489305225] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:50:10,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461874250] [2022-11-23 14:50:10,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:50:10,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:50:10,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:50:10,556 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:50:10,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:50:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:50:10,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:50:10,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:50:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:11,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:50:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:50:11,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461874250] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:50:11,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2064418141] [2022-11-23 14:50:11,213 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 14:50:11,214 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:50:11,227 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:50:11,233 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:50:11,234 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:50:40,102 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-23 14:50:40,440 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 14:50:40,797 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:50:54,248 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 440 DAG size of output: 239 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:50:59,630 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:51:30,060 WARN L233 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 498 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:51:56,826 WARN L233 SmtUtils]: Spent 20.57s on a formula simplification. DAG size of input: 579 DAG size of output: 449 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:52:03,686 WARN L233 SmtUtils]: Spent 6.55s on a formula simplification. DAG size of input: 564 DAG size of output: 317 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:52:11,357 WARN L233 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 566 DAG size of output: 324 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:52:21,685 WARN L233 SmtUtils]: Spent 10.00s on a formula simplification. DAG size of input: 568 DAG size of output: 400 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:52:31,870 WARN L233 SmtUtils]: Spent 9.84s on a formula simplification. DAG size of input: 564 DAG size of output: 396 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:52:33,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2064418141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:33,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:52:33,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [4, 4, 4] total 27 [2022-11-23 14:52:33,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561765886] [2022-11-23 14:52:33,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:33,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-23 14:52:33,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:33,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-23 14:52:33,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:52:33,247 INFO L87 Difference]: Start difference. First operand 224 states and 314 transitions. Second operand has 22 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-23 14:52:44,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:44,063 INFO L93 Difference]: Finished difference Result 530 states and 795 transitions. [2022-11-23 14:52:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 14:52:44,064 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 82 [2022-11-23 14:52:44,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:44,067 INFO L225 Difference]: With dead ends: 530 [2022-11-23 14:52:44,067 INFO L226 Difference]: Without dead ends: 324 [2022-11-23 14:52:44,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 112.4s TimeCoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-11-23 14:52:44,069 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 114 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 3316 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:44,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 3316 Invalid, 2239 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 2227 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-11-23 14:52:44,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-11-23 14:52:44,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 247. [2022-11-23 14:52:44,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 157 states have (on average 1.3885350318471337) internal successors, (218), 159 states have internal predecessors, (218), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-11-23 14:52:44,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2022-11-23 14:52:44,262 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 82 [2022-11-23 14:52:44,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:44,262 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2022-11-23 14:52:44,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-23 14:52:44,263 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2022-11-23 14:52:44,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-23 14:52:44,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:44,266 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:52:44,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:52:44,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:52:44,475 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:44,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:44,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2029208400, now seen corresponding path program 1 times [2022-11-23 14:52:44,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:44,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770811062] [2022-11-23 14:52:44,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:44,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:44,595 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:52:44,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:44,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770811062] [2022-11-23 14:52:44,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770811062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:52:44,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:52:44,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:52:44,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042082342] [2022-11-23 14:52:44,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:52:44,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:52:44,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:52:44,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:52:44,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:52:44,601 INFO L87 Difference]: Start difference. First operand 247 states and 347 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:52:44,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:52:44,913 INFO L93 Difference]: Finished difference Result 597 states and 874 transitions. [2022-11-23 14:52:44,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:52:44,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 87 [2022-11-23 14:52:44,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:52:44,916 INFO L225 Difference]: With dead ends: 597 [2022-11-23 14:52:44,916 INFO L226 Difference]: Without dead ends: 374 [2022-11-23 14:52:44,917 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 [2022-11-23 14:52:44,919 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 57 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:52:44,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 419 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:52:44,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-11-23 14:52:45,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 369. [2022-11-23 14:52:45,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 248 states have (on average 1.4435483870967742) internal successors, (358), 250 states have internal predecessors, (358), 96 states have call successors, (96), 24 states have call predecessors, (96), 24 states have return successors, (95), 94 states have call predecessors, (95), 95 states have call successors, (95) [2022-11-23 14:52:45,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 549 transitions. [2022-11-23 14:52:45,127 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 549 transitions. Word has length 87 [2022-11-23 14:52:45,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:52:45,128 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 549 transitions. [2022-11-23 14:52:45,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:52:45,128 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 549 transitions. [2022-11-23 14:52:45,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-23 14:52:45,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:52:45,130 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:52:45,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:52:45,131 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:52:45,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:52:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1628304325, now seen corresponding path program 1 times [2022-11-23 14:52:45,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:52:45,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545796517] [2022-11-23 14:52:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:45,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:52:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:52:45,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:45,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545796517] [2022-11-23 14:52:45,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545796517] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:52:45,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473845459] [2022-11-23 14:52:45,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:52:45,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:52:45,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:52:45,292 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:52:45,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:52:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:45,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:52:45,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:52:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:52:45,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:52:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 14:52:45,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473845459] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:52:45,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1972238696] [2022-11-23 14:52:45,744 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2022-11-23 14:52:45,744 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:52:45,745 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:52:45,745 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:52:45,745 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:53:34,187 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 440 for LOIs [2022-11-23 14:53:34,497 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 450 for LOIs [2022-11-23 14:53:34,808 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:53:52,838 WARN L233 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 463 DAG size of output: 259 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:54:03,851 WARN L233 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 473 DAG size of output: 265 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:54:25,191 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 498 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:54:44,698 WARN L233 SmtUtils]: Spent 13.56s on a formula simplification. DAG size of input: 579 DAG size of output: 372 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:04,264 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 547 DAG size of output: 333 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:09,764 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 549 DAG size of output: 335 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:16,339 WARN L233 SmtUtils]: Spent 6.18s on a formula simplification. DAG size of input: 580 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:16,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1972238696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:55:16,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:55:16,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-23 14:55:16,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738043323] [2022-11-23 14:55:16,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:55:16,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 14:55:16,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:55:16,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 14:55:16,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-11-23 14:55:16,351 INFO L87 Difference]: Start difference. First operand 369 states and 549 transitions. Second operand has 25 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-23 14:55:23,552 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 409 DAG size of output: 351 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:55:46,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:55:46,479 INFO L93 Difference]: Finished difference Result 824 states and 1285 transitions. [2022-11-23 14:55:46,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-23 14:55:46,480 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 88 [2022-11-23 14:55:46,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:55:46,483 INFO L225 Difference]: With dead ends: 824 [2022-11-23 14:55:46,484 INFO L226 Difference]: Without dead ends: 518 [2022-11-23 14:55:46,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 121.2s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 14:55:46,486 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 142 mSDsluCounter, 2755 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 2208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:55:46,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2965 Invalid, 2208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-11-23 14:55:46,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-11-23 14:55:46,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 418. [2022-11-23 14:55:46,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 293 states have (on average 1.477815699658703) internal successors, (433), 297 states have internal predecessors, (433), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-23 14:55:46,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 630 transitions. [2022-11-23 14:55:46,781 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 630 transitions. Word has length 88 [2022-11-23 14:55:46,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:55:46,782 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 630 transitions. [2022-11-23 14:55:46,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 states have internal predecessors, (46), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-23 14:55:46,783 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 630 transitions. [2022-11-23 14:55:46,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-23 14:55:46,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:55:46,785 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:55:46,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 14:55:46,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 14:55:46,993 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:55:46,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:55:46,993 INFO L85 PathProgramCache]: Analyzing trace with hash -102062175, now seen corresponding path program 1 times [2022-11-23 14:55:46,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:55:46,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278106640] [2022-11-23 14:55:46,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:55:46,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:55:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:55:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:55:47,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:55:47,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278106640] [2022-11-23 14:55:47,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278106640] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:55:47,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478124347] [2022-11-23 14:55:47,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:55:47,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:55:47,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:55:47,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:55:47,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:55:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:55:47,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:55:47,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:55:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:55:47,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:55:47,706 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 14:55:47,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478124347] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:55:47,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [304690133] [2022-11-23 14:55:47,711 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2022-11-23 14:55:47,711 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:55:47,712 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:55:47,713 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:55:47,713 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:57:36,881 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 14:57:37,197 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 229 for LOIs [2022-11-23 14:57:37,259 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 228 for LOIs [2022-11-23 14:57:37,318 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 224 for LOIs [2022-11-23 14:57:38,585 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-11-23 14:57:38,644 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2022-11-23 14:57:38,675 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 14:57:39,011 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 226 for LOIs [2022-11-23 14:57:41,693 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 213 for LOIs [2022-11-23 14:57:41,728 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Keys with input of size 226 for LOIs [2022-11-23 14:57:45,667 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 385 for LOIs [2022-11-23 14:57:45,852 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 219 for LOIs [2022-11-23 14:57:45,886 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 424 for LOIs [2022-11-23 14:57:47,514 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:58:00,298 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 444 DAG size of output: 244 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:58:05,651 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 467 DAG size of output: 264 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:58:34,848 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 498 DAG size of output: 338 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:58:52,470 WARN L233 SmtUtils]: Spent 11.38s on a formula simplification. DAG size of input: 632 DAG size of output: 405 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:00:00,464 WARN L233 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 436 DAG size of output: 337 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:00:07,600 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 452 DAG size of output: 353 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:00:21,769 WARN L233 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 472 DAG size of output: 307 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:00:26,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [304690133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:00:26,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:00:26,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [4, 4, 4] total 64 [2022-11-23 15:00:26,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561081694] [2022-11-23 15:00:26,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:00:26,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-11-23 15:00:26,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:00:26,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-11-23 15:00:26,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=3860, Unknown=0, NotChecked=0, Total=4032 [2022-11-23 15:00:26,706 INFO L87 Difference]: Start difference. First operand 418 states and 630 transitions. Second operand has 59 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 33 states have internal predecessors, (46), 19 states have call successors, (21), 14 states have call predecessors, (21), 11 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-23 15:01:41,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:01:41,231 INFO L93 Difference]: Finished difference Result 938 states and 1448 transitions. [2022-11-23 15:01:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-23 15:01:41,233 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 33 states have internal predecessors, (46), 19 states have call successors, (21), 14 states have call predecessors, (21), 11 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 91 [2022-11-23 15:01:41,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:01:41,237 INFO L225 Difference]: With dead ends: 938 [2022-11-23 15:01:41,238 INFO L226 Difference]: Without dead ends: 632 [2022-11-23 15:01:41,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1190 ImplicationChecksByTransitivity, 191.8s TimeCoverageRelationStatistics Valid=262, Invalid=5438, Unknown=0, NotChecked=0, Total=5700 [2022-11-23 15:01:41,242 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 320 mSDsluCounter, 6400 mSDsCounter, 0 mSdLazyCounter, 9650 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 6643 SdHoareTripleChecker+Invalid, 9696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 9650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:01:41,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 6643 Invalid, 9696 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [46 Valid, 9650 Invalid, 0 Unknown, 0 Unchecked, 40.7s Time] [2022-11-23 15:01:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-11-23 15:01:41,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 566. [2022-11-23 15:01:41,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 412 states have (on average 1.4975728155339805) internal successors, (617), 419 states have internal predecessors, (617), 119 states have call successors, (119), 36 states have call predecessors, (119), 34 states have return successors, (119), 110 states have call predecessors, (119), 118 states have call successors, (119) [2022-11-23 15:01:41,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 855 transitions. [2022-11-23 15:01:41,727 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 855 transitions. Word has length 91 [2022-11-23 15:01:41,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:01:41,728 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 855 transitions. [2022-11-23 15:01:41,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 33 states have internal predecessors, (46), 19 states have call successors, (21), 14 states have call predecessors, (21), 11 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-23 15:01:41,728 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 855 transitions. [2022-11-23 15:01:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-23 15:01:41,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:01:41,733 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:01:41,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 15:01:41,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:01:41,942 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:01:41,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:01:41,942 INFO L85 PathProgramCache]: Analyzing trace with hash -885216654, now seen corresponding path program 1 times [2022-11-23 15:01:41,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:01:41,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258240825] [2022-11-23 15:01:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:01:41,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:01:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:01:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:01:42,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:01:42,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258240825] [2022-11-23 15:01:42,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258240825] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:01:42,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248316020] [2022-11-23 15:01:42,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:01:42,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:01:42,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:01:42,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:01:42,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3792669a-2289-40df-8147-d5c609371d5b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:01:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:01:42,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:01:42,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:01:42,598 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:01:42,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:01:42,694 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:01:42,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248316020] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:01:42,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [645434396] [2022-11-23 15:01:42,699 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-11-23 15:01:42,699 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:01:42,700 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:01:42,700 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:01:42,700 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:03:49,147 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 444 for LOIs [2022-11-23 15:03:49,494 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 418 for LOIs [2022-11-23 15:03:49,814 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 415 for LOIs [2022-11-23 15:03:50,148 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 224 for LOIs [2022-11-23 15:03:51,545 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 211 for LOIs [2022-11-23 15:03:51,610 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 208 for LOIs [2022-11-23 15:03:51,645 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 441 for LOIs [2022-11-23 15:03:51,963 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 224 for LOIs [2022-11-23 15:03:55,322 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 233 for LOIs [2022-11-23 15:03:55,373 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Keys with input of size 226 for LOIs